FPUS55 KPSR 200631 ZFPPSR Zone Forecast Product for Southwest Arizona/Southeast California National Weather Service Phoenix AZ 1131 PM MST Thu Mar 19 2026 This is an automatically generated product that provides average values for large geographical areas and may not be representative of the exact location that you are interested in. For a more site specific forecast, please visit weather.gov/phoenix and either (1) Select a location from the dropdown menu above the map or (2) Click a location on the map. You can refine your selection by clicking on the map displayed on the resulting page. AZZ537-540-542>544-546-548-550-551-201100- Northwest Valley-Buckeye/Avondale-Deer Valley-Central Phoenix- North Phoenix/Glendale-Scottsdale/Paradise Valley-East Valley- South Mountain/Ahwatukee-Southeast Valley/Queen Creek- Including the cities of Circle City, Surprise, Wittmann, Beardsley, Sun City West, Avondale, Cashion, Goodyear, Liberty, Peoria, Phoenix, Paradise Valley, Mesa, Chandler, Tempe, Gilbert, Sun Lakes, and Queen Creek 1131 PM MST Thu Mar 19 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 61 to 70. Northwest wind 5 to 10 mph in the evening becoming northeast around 5 mph after midnight. .FRIDAY...Sunny and hot. Highs 102 to 106. East wind around 5 mph in the morning becoming southwest in the afternoon. .FRIDAY NIGHT...Clear. Lows 63 to 71. West wind around 5 mph in the evening becoming northeast after midnight. .SATURDAY...Sunny and hot. Highs 101 to 106. East wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. .SATURDAY NIGHT...Clear. Lows 64 to 71. West wind 5 to 10 mph in the evening becoming north around 5 mph after midnight. .SUNDAY...Partly cloudy and hot. Highs 97 to 102. .SUNDAY NIGHT...Partly cloudy. Lows 63 to 69. .MONDAY...Mostly sunny. Highs 95 to 101. .MONDAY NIGHT...Clear. Lows 62 to 69. .TUESDAY...Sunny and hot. Highs 97 to 103. .TUESDAY NIGHT...Clear. Lows 63 to 70. .WEDNESDAY...Sunny and hot. Highs 99 to 105. .WEDNESDAY NIGHT...Clear. Lows 63 to 70. .THURSDAY...Sunny and hot. Highs 99 to 104. $$ AZZ541-549-555-201100- Cave Creek/New River-Fountain Hills/East Mesa- Apache Junction/Gold Canyon- Including the cities of Scottsdale, Fountain Hills, and Apache Junction 1131 PM MST Thu Mar 19 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 61 to 71. North wind around 5 mph in the evening becoming northeast 5 to 10 mph after midnight. .FRIDAY...Sunny and hot. Highs 101 to 106. East wind 5 to 10 mph in the morning becoming southwest around 5 mph in the afternoon. .FRIDAY NIGHT...Clear. Lows 60 to 70. North wind around 5 mph in the evening becoming northeast 5 to 10 mph after midnight. .SATURDAY...Sunny and hot. Highs 100 to 105. East wind 5 to 10 mph in the morning becoming southwest in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows 60 to 70. Northwest wind 5 to 10 mph in the evening becoming northeast after midnight. .SUNDAY...Partly cloudy and hot. Highs 95 to 101. .SUNDAY NIGHT...Partly cloudy. Lows 64 to 69. .MONDAY...Mostly sunny. Highs 93 to 99. .MONDAY NIGHT...Clear. Lows 63 to 68. .TUESDAY...Sunny and hot. Highs 96 to 102. .TUESDAY NIGHT...Clear. Lows 64 to 69. .WEDNESDAY...Sunny and hot. Highs 98 to 104. .WEDNESDAY NIGHT...Clear. Lows 64 to 69. .THURSDAY...Sunny and hot. Highs 97 to 103. $$ AZZ553-554-201100- Northwest Pinal County-West Pinal County- Including the cities of Casa Grande, Cactus Forest, Florence, and Coolidge 1131 PM MST Thu Mar 19 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 57 to 67. Northwest wind 5 to 10 mph in the evening becoming south around 5 mph after midnight. .FRIDAY...Sunny and hot. Highs 102 to 107. East wind around 5 mph in the morning becoming northwest in the afternoon. .FRIDAY NIGHT...Clear. Lows 58 to 68. West wind around 5 mph in the evening becoming south after midnight. .SATURDAY...Sunny and hot. Highs 102 to 107. Southeast wind around 5 mph in the morning becoming northwest 5 to 10 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows 59 to 69. West wind 5 to 10 mph in the evening becoming south around 5 mph after midnight. .SUNDAY...Partly sunny and hot. Highs 98 to 102. .SUNDAY NIGHT...Partly cloudy. Lows 58 to 66. .MONDAY...Mostly sunny and hot. Highs 96 to 100. .MONDAY NIGHT...Clear. Lows 57 to 66. .TUESDAY...Sunny and hot. Highs 97 to 103. .TUESDAY NIGHT...Clear. Lows 58 to 67. .WEDNESDAY...Sunny and hot. Highs 100 to 105. .WEDNESDAY NIGHT...Clear. Lows 59 to 67. .THURSDAY...Sunny and hot. Highs 98 to 104. $$ AZZ532-201100- Yuma- Including the cities of Yuma and Fortuna Foothills 1131 PM MST Thu Mar 19 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 65 to 68. West wind around 5 mph in the evening becoming light after midnight. .FRIDAY...Sunny and hot. Highs near 107. Northeast wind around 5 mph in the morning becoming northwest in the afternoon. .FRIDAY NIGHT...Clear. Lows 67 to 70. Light wind. .SATURDAY...Sunny and hot. Highs near 106. North wind around 5 mph in the morning becoming west 5 to 10 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows 66 to 68. Northwest wind 5 to 10 mph. .SUNDAY...Partly sunny and hot. Highs 98 to 102. .SUNDAY NIGHT...Partly cloudy. Lows 62 to 67. .MONDAY...Sunny. Highs in the mid to upper 90s. .MONDAY NIGHT...Clear. Lows 59 to 64. .TUESDAY...Sunny. Highs 98 to 100. .TUESDAY NIGHT...Clear. Lows in the lower to mid 60s. .WEDNESDAY...Sunny and hot. Highs 101 to 103. .WEDNESDAY NIGHT...Clear. Lows 63 to 69. .THURSDAY...Sunny and hot. Highs 101 to 103. $$ AZZ562-201100- Globe/Miami- Including the cities of Globe and Miami 1131 PM MST Thu Mar 19 2026 .TONIGHT...Clear. Lows 54 to 64. West wind 5 to 10 mph in the evening becoming northeast around 5 mph after midnight. .FRIDAY...Sunny. Highs 88 to 98. East wind around 5 mph in the morning becoming west 5 to 10 mph in the afternoon. .FRIDAY NIGHT...Clear. Lows 54 to 64. Northwest wind 5 to 10 mph in the evening becoming north around 5 mph after midnight. .SATURDAY...Sunny. Highs 87 to 97. Southeast wind around 5 mph in the morning becoming west 10 to 15 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows 53 to 63. Northwest wind 5 to 10 mph in the evening becoming northeast around 5 mph after midnight. .SUNDAY...Partly sunny. Highs in the lower to mid 90s. .SUNDAY NIGHT...Partly cloudy. Lows near 60. .MONDAY...Mostly sunny. Highs 87 to 93. .MONDAY NIGHT...Clear. Lows near 60. .TUESDAY...Sunny. Highs 89 to 95. .TUESDAY NIGHT...Clear. Lows in the lower 60s. .WEDNESDAY...Sunny. Highs in the lower to mid 90s. .WEDNESDAY NIGHT...Clear. Lows in the lower 60s. .THURSDAY...Sunny. Highs 90 to 96. $$ AZZ545-547-552-561-201100- New River Mesa-Rio Verde/Salt River-Superior-Dripping Springs- Including the cities of Tortilla Flat, Superior, Hayden, and Winkelman 1131 PM MST Thu Mar 19 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 62 to 72. Northwest wind 5 to 10 mph in the evening becoming northeast after midnight. .FRIDAY...Sunny and hot. Highs 101 to 106. Northeast wind 5 to 10 mph in the morning becoming southwest in the afternoon. .FRIDAY NIGHT...Clear. Lows 61 to 71. Northwest wind 5 to 10 mph in the evening becoming northeast after midnight. .SATURDAY...Sunny and hot. Highs 99 to 104. East wind 5 to 10 mph in the morning becoming southwest 10 to 15 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows 60 to 70. Northwest wind 5 to 10 mph in the evening becoming northeast after midnight. .SUNDAY...Partly cloudy and hot. Highs 89 to 101. .SUNDAY NIGHT...Partly cloudy. Lows 61 to 69. .MONDAY...Mostly sunny. Highs 87 to 99. .MONDAY NIGHT...Clear. Lows 60 to 68. .TUESDAY...Sunny and hot. Highs 89 to 101. .TUESDAY NIGHT...Clear. Lows 61 to 69. .WEDNESDAY...Sunny and hot. Highs 91 to 103. .WEDNESDAY NIGHT...Clear. Lows 61 to 69. .THURSDAY...Sunny and hot. Highs 90 to 102. $$ AZZ556>558-201100- Tonto Basin-Mazatzal Mountains-Pinal/Superstition Mountains- Including the cities of Punkin Center and Sunflower 1131 PM MST Thu Mar 19 2026 .TONIGHT...Clear. Lows 58 to 68. West wind 5 to 10 mph in the evening becoming northeast after midnight. .FRIDAY...Sunny and hot. Highs 96 to 101. East wind 5 to 10 mph in the morning becoming west in the afternoon. .FRIDAY NIGHT...Clear. Lows 58 to 68. West wind 5 to 10 mph in the evening becoming northeast after midnight. .SATURDAY...Sunny and hot. Highs 95 to 100. East wind 5 to 10 mph in the morning becoming west 10 to 15 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows 57 to 67. Northwest wind 10 to 15 mph in the evening becoming northeast 5 to 10 mph after midnight. .SUNDAY...Partly sunny. Highs 82 to 96. .SUNDAY NIGHT...Partly cloudy. Lows 57 to 65. .MONDAY...Mostly sunny. Highs 80 to 94. .MONDAY NIGHT...Clear. Lows 56 to 64. .TUESDAY...Sunny. Highs 83 to 97. .TUESDAY NIGHT...Clear. Lows 57 to 65. .WEDNESDAY...Sunny. Highs 84 to 98. .WEDNESDAY NIGHT...Clear. Lows 56 to 65. .THURSDAY...Sunny. Highs 83 to 97. $$ AZZ560-563-201100- San Carlos-Southeast Gila County- Including the cities of San Carlos and Peridot 1131 PM MST Thu Mar 19 2026 .TONIGHT...Clear. Lows 55 to 65. West wind 5 to 10 mph in the evening becoming east after midnight. .FRIDAY...Sunny. Highs 89 to 99. East wind 5 to 10 mph in the morning becoming west in the afternoon. .FRIDAY NIGHT...Clear. Lows 56 to 66. Northwest wind 5 to 10 mph in the evening becoming northeast after midnight. .SATURDAY...Sunny. Highs 88 to 98. East wind 5 to 10 mph in the morning becoming west 10 to 15 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows 55 to 65. Northwest wind 5 to 10 mph in the evening becoming northeast around 5 mph after midnight. .SUNDAY...Partly sunny. Highs 81 to 95. .SUNDAY NIGHT...Partly cloudy. Lows 45 to 63. .MONDAY...Mostly sunny. Highs 79 to 93. .MONDAY NIGHT...Clear. Lows 43 to 62. .TUESDAY...Sunny. Highs 82 to 96. .TUESDAY NIGHT...Clear. Lows 44 to 63. .WEDNESDAY...Sunny. Highs 84 to 98. .WEDNESDAY NIGHT...Clear. Lows 45 to 63. .THURSDAY...Sunny. Highs 83 to 97. $$ AZZ539-559-201100- Gila Bend-Sonoran Desert Natl Monument- Including the cities of Gila Bend, Sentinel, and Kaka 1131 PM MST Thu Mar 19 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 65 to 75. West wind 5 to 10 mph in the evening becoming light after midnight. .FRIDAY...Sunny and hot. Highs 103 to 108. Northeast wind around 5 mph in the morning becoming northwest in the afternoon. .FRIDAY NIGHT...Clear. Lows 65 to 75. West wind around 5 mph in the evening becoming light after midnight. .SATURDAY...Sunny and hot. Highs 103 to 108. Light wind in the morning becoming west 5 to 10 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows 63 to 73. Southwest wind 5 to 10 mph. .SUNDAY...Partly sunny and hot. Highs 97 to 103. .SUNDAY NIGHT...Partly cloudy. Lows 62 to 69. .MONDAY...Mostly sunny and hot. Highs 94 to 100. .MONDAY NIGHT...Clear. Lows 59 to 69. .TUESDAY...Sunny and hot. Highs 97 to 103. .TUESDAY NIGHT...Clear. Lows 62 to 70. .WEDNESDAY...Sunny and hot. Highs 99 to 105. .WEDNESDAY NIGHT...Clear. Lows 63 to 71. .THURSDAY...Sunny and hot. Highs 99 to 105. $$ AZZ534-538-201100- Aguila Valley-Tonopah Desert- Including the cities of Aguila, Gladden, Wickenburg, Arlington, Hassayampa, Tonopah, and Wintersburg 1131 PM MST Thu Mar 19 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 62 to 72. Northwest wind 5 to 10 mph. .FRIDAY...Sunny and hot. Highs 102 to 107. Northeast wind around 5 mph in the morning becoming west 5 to 10 mph in the afternoon. .FRIDAY NIGHT...Clear. Lows 62 to 72. Northwest wind around 5 mph. .SATURDAY...Sunny and hot. Highs 101 to 106. Northeast wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows 61 to 71. West wind 5 to 10 mph in the evening becoming north around 5 mph after midnight. .SUNDAY...Partly cloudy and hot. Highs 95 to 101. .SUNDAY NIGHT...Partly cloudy. Lows 60 to 68. .MONDAY...Mostly sunny. Highs 93 to 99. .MONDAY NIGHT...Clear. Lows 58 to 68. .TUESDAY...Sunny and hot. Highs 95 to 101. .TUESDAY NIGHT...Clear. Lows 59 to 69. .WEDNESDAY...Sunny and hot. Highs 97 to 105. .WEDNESDAY NIGHT...Clear. Lows 60 to 70. .THURSDAY...Sunny and hot. Highs 96 to 104. $$ AZZ531-533-201100- Kofa-Central La Paz- Including the cities of Palm Canyon, Brenda, Harcuvar, Quartzsite, Vicksburg, Vicksburg Junction, and Salome 1131 PM MST Thu Mar 19 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 65 to 75. Northwest wind 5 to 10 mph in the evening becoming north around 5 mph after midnight. .FRIDAY...Sunny and hot. Highs 103 to 108. Northeast wind around 5 mph in the morning becoming west 5 to 10 mph in the afternoon. .FRIDAY NIGHT...Clear. Lows 66 to 76. West wind 5 to 10 mph in the evening becoming northwest around 5 mph after midnight. .SATURDAY...Sunny and hot. Highs 101 to 106. East wind around 5 mph in the morning becoming southwest 10 to 15 mph in the afternoon. .SATURDAY NIGHT...Mostly clear in the evening then becoming partly cloudy. Lows 62 to 72. West wind 5 to 10 mph. .SUNDAY...Partly sunny and hot. Highs 93 to 101. .SUNDAY NIGHT...Partly cloudy. Lows 61 to 69. .MONDAY...Sunny. Highs 91 to 99. .MONDAY NIGHT...Clear. Lows 60 to 68. .TUESDAY...Sunny and hot. Highs 93 to 101. .TUESDAY NIGHT...Clear. Lows 60 to 70. .WEDNESDAY...Sunny and hot. Highs 96 to 104. .WEDNESDAY NIGHT...Clear. Lows 61 to 71. .THURSDAY...Sunny and hot. Highs 95 to 103. $$ AZZ535-536-201100- Southeast Yuma County-Gila River Valley- Including the city of Ligurta 1131 PM MST Thu Mar 19 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 64 to 74. West wind 5 to 10 mph in the evening becoming north around 5 mph after midnight. .FRIDAY...Sunny and hot. Highs 103 to 108. Northeast wind around 5 mph in the morning becoming northwest in the afternoon. .FRIDAY NIGHT...Clear. Lows 64 to 74. West wind around 5 mph. .SATURDAY...Sunny and hot. Highs 103 to 108. Light wind in the morning becoming west 5 to 10 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows 60 to 70. West wind 5 to 10 mph. .SUNDAY...Partly sunny and hot. Highs 97 to 101. .SUNDAY NIGHT...Partly cloudy. Lows 59 to 67. .MONDAY...Sunny. Highs 92 to 98. .MONDAY NIGHT...Clear. Lows 56 to 65. .TUESDAY...Sunny and hot. Highs 96 to 102. .TUESDAY NIGHT...Clear. Lows 59 to 68. .WEDNESDAY...Sunny and hot. Highs 100 to 104. .WEDNESDAY NIGHT...Clear. Lows 60 to 69. .THURSDAY...Sunny and hot. Highs 100 to 104. $$ AZZ530-CAZ569-201100- Parker Valley-Palo Verde Valley- Including the cities of Parker, Ehrenberg, Martinez Lake, Blythe, Palo Verde, and Ripley 1131 PM MST Thu Mar 19 2026 /1131 PM PDT Thu Mar 19 2026/ ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST /8 PM PDT/ SUNDAY... .TONIGHT...Clear. Lows 60 to 70. West wind 5 to 10 mph in the evening becoming north around 5 mph after midnight. .FRIDAY...Sunny and hot. Highs 103 to 108. North wind around 5 mph in the morning becoming west in the afternoon. .FRIDAY NIGHT...Clear. Lows 62 to 72. Southwest wind around 5 mph. .SATURDAY...Sunny and hot. Highs 103 to 108. Northwest wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. .SATURDAY NIGHT...Mostly clear in the evening then becoming partly cloudy. Lows 59 to 69. Southwest wind 5 to 15 mph. .SUNDAY...Partly sunny and hot. Highs 97 to 101. .SUNDAY NIGHT...Partly cloudy. Lows 61 to 68. .MONDAY...Sunny and hot. Highs 95 to 101. .MONDAY NIGHT...Clear. Lows 59 to 65. .TUESDAY...Sunny and hot. Highs 97 to 103. .TUESDAY NIGHT...Clear. Lows 59 to 67. .WEDNESDAY...Sunny and hot. Highs 100 to 106. .WEDNESDAY NIGHT...Clear. Lows 60 to 68. .THURSDAY...Sunny and hot. Highs 99 to 105. $$ CAZ564-565-568-570-201100- Chuckwalla Mountains-Imperial County Southeast-Chiriaco Summit- Chuckwalla Valley- Including the cities of Imperial Hot Mineral Springs, Winterhaven, Chiriaco Summit, and Midland 1131 PM PDT Thu Mar 19 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT SUNDAY... .TONIGHT...Clear. Lows 65 to 75. Northwest wind 5 to 10 mph. .FRIDAY...Sunny and hot. Highs 103 to 108. North wind 5 to 10 mph in the morning becoming south in the afternoon. .FRIDAY NIGHT...Clear. Lows 66 to 76. Southwest wind around 5 mph in the evening becoming northwest 5 to 10 mph after midnight. .SATURDAY...Sunny and hot. Highs 102 to 107. Northwest wind 5 to 10 mph in the morning becoming west 10 to 15 mph in the afternoon. .SATURDAY NIGHT...Mostly clear in the evening then becoming partly cloudy. Lows 62 to 72. West wind 5 to 15 mph. .SUNDAY...Partly sunny and hot. Highs 91 to 101. .SUNDAY NIGHT...Partly cloudy. Lows 63 to 70. .MONDAY...Sunny and hot. Highs 90 to 100. .MONDAY NIGHT...Clear. Lows 60 to 68. .TUESDAY...Sunny and hot. Highs 91 to 101. .TUESDAY NIGHT...Clear. Lows 62 to 70. .WEDNESDAY...Sunny and hot. Highs 94 to 104. .WEDNESDAY NIGHT...Clear. Lows 63 to 71. .THURSDAY...Sunny and hot. Highs 94 to 104. $$ CAZ563-567-201100- Salton Sea-Imperial Valley- Including the cities of Desert Shores, El Centro, Calexico, Alamorio, and Brawley 1131 PM PDT Thu Mar 19 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT SUNDAY... .TONIGHT...Clear. Lows 65 to 75. West wind around 5 mph. .FRIDAY...Sunny and very hot. Highs 106 to 111. Southeast wind around 5 mph. .FRIDAY NIGHT...Clear. Lows 65 to 75. West wind 5 to 10 mph. .SATURDAY...Sunny and hot. Highs 104 to 109. West wind 5 to 15 mph. .SATURDAY NIGHT...Partly cloudy. Lows 64 to 74. West wind 5 to 15 mph. .SUNDAY...Partly sunny and hot. Highs 95 to 103. .SUNDAY NIGHT...Mostly clear. Lows 63 to 72. .MONDAY...Mostly sunny and hot. Highs 94 to 102. .MONDAY NIGHT...Clear. Lows 60 to 70. .TUESDAY...Sunny and hot. Highs 94 to 102. .TUESDAY NIGHT...Clear. Lows 62 to 71. .WEDNESDAY...Sunny and hot. Highs 96 to 106. .WEDNESDAY NIGHT...Clear. Lows 63 to 73. .THURSDAY...Sunny and hot. Highs 96 to 106. $$ CAZ566-201100- Imperial County West- Including the cities of Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, and Plaster City 1131 PM PDT Thu Mar 19 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT SUNDAY... .TONIGHT...Clear. Lows 68 to 78. West wind 5 to 10 mph. .FRIDAY...Sunny and hot. Highs 104 to 109. West wind 5 to 10 mph in the morning becoming east around 5 mph in the afternoon. .FRIDAY NIGHT...Clear. Lows 68 to 78. West wind 5 to 15 mph. .SATURDAY...Sunny and hot. Highs 104 to 109. West wind 5 to 10 mph in the morning increasing to 10 to 20 mph in the afternoon. .SATURDAY NIGHT...Partly cloudy. Lows 65 to 75. West wind 10 to 20 mph. .SUNDAY...Partly sunny and hot. Highs 99 to 103. .SUNDAY NIGHT...Mostly clear. Lows 63 to 74. .MONDAY...Mostly sunny and hot. Highs 98 to 102. .MONDAY NIGHT...Clear. Lows 62 to 72. .TUESDAY...Sunny and hot. Highs 97 to 101. .TUESDAY NIGHT...Clear. Lows 63 to 74. .WEDNESDAY...Sunny and hot. Highs 101 to 105. .WEDNESDAY NIGHT...Clear. Lows 65 to 75. .THURSDAY...Sunny and hot. Highs 101 to 105. $$ CAZ562-201100- Imperial County Southwest- Including the city of Mountain Spring 1131 PM PDT Thu Mar 19 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT SUNDAY... .TONIGHT...Clear. Lows 73 to 83. Southwest wind 5 to 10 mph. .FRIDAY...Sunny and hot. Highs 103 to 108. West wind 5 to 10 mph in the morning becoming east around 5 mph in the afternoon. .FRIDAY NIGHT...Clear. Lows 72 to 82. Southwest wind 10 to 20 mph. .SATURDAY...Sunny, windy and hot. Highs 103 to 108. West wind 15 to 25 mph. Gusts up to 35 mph in the afternoon. .SATURDAY NIGHT...Partly cloudy and windy. Lows 68 to 78. West wind 15 to 25 mph. Gusts up to 35 mph. .SUNDAY...Partly sunny and hot. Highs 92 to 102. .SUNDAY NIGHT...Mostly clear. Lows 67 to 78. .MONDAY...Mostly sunny and hot. Highs 91 to 101. .MONDAY NIGHT...Clear. Lows 66 to 76. .TUESDAY...Sunny and hot. Highs 91 to 101. .TUESDAY NIGHT...Clear. Lows 67 to 77. .WEDNESDAY...Sunny and hot. Highs 95 to 105. .WEDNESDAY NIGHT...Clear. Lows 68 to 78. .THURSDAY...Sunny and hot. Highs 95 to 105. $$ CAZ560-201100- Joshua Tree NP West- Including the cities of Cottonwood Visitor and Lost Horse-Keys Village 1131 PM PDT Thu Mar 19 2026 .TONIGHT...Clear. Lows 63 to 73. Southwest wind 5 to 10 mph in the evening becoming northwest after midnight. .FRIDAY...Sunny. Highs 87 to 97. West wind 5 to 10 mph in the morning becoming south in the afternoon. .FRIDAY NIGHT...Clear. Lows 62 to 72. West wind 5 to 10 mph. .SATURDAY...Mostly sunny and windy. Highs 84 to 94. West wind 5 to 10 mph in the morning becoming southwest 10 to 20 mph in the afternoon. Gusts up to 35 mph in the afternoon. .SATURDAY NIGHT...Partly cloudy and breezy. Lows 59 to 69. West wind 10 to 20 mph in the evening becoming northwest 5 to 10 mph after midnight. Gusts up to 30 mph in the evening. .SUNDAY...Partly cloudy. Highs 81 to 91. .SUNDAY NIGHT...Mostly clear. Lows 56 to 69. .MONDAY...Sunny. Highs 80 to 90. .MONDAY NIGHT...Clear. Lows 54 to 67. .TUESDAY...Sunny. Highs 81 to 91. .TUESDAY NIGHT...Clear. Lows 56 to 69. .WEDNESDAY...Sunny. Highs 83 to 93. .WEDNESDAY NIGHT...Clear. Lows 56 to 69. .THURSDAY...Sunny. Highs 82 to 92. $$ CAZ561-201100- Joshua Tree NP East- 1131 PM PDT Thu Mar 19 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT SUNDAY... .TONIGHT...Clear. Lows 62 to 72. West wind 5 to 10 mph. .FRIDAY...Sunny and hot. Highs 93 to 103. West wind 5 to 10 mph in the morning becoming southeast around 5 mph in the afternoon. .FRIDAY NIGHT...Clear. Lows 62 to 72. West wind 5 to 10 mph. .SATURDAY...Mostly sunny and hot. Highs 92 to 102. Northwest wind 5 to 10 mph in the morning becoming southwest 10 to 15 mph in the afternoon. .SATURDAY NIGHT...Partly cloudy. Lows 60 to 70. West wind 5 to 15 mph. .SUNDAY...Partly cloudy. Not as warm. Highs 89 to 97. .SUNDAY NIGHT...Mostly clear. Lows 64 to 69. .MONDAY...Sunny. Highs 90 to 98. .MONDAY NIGHT...Clear. Lows 63 to 68. .TUESDAY...Sunny. Highs 90 to 98. .TUESDAY NIGHT...Clear. Lows 64 to 69. .WEDNESDAY...Sunny and hot. Highs 92 to 100. .WEDNESDAY NIGHT...Clear. Lows 64 to 69. .THURSDAY...Sunny and hot. Highs 92 to 100. $$ Visit us on Facebook, Twitter, and at weather.gov/phoenix