FPUS55 KPSR 180501 ZFPPSR Zone Forecast Product for Southwest Arizona/Southeast California National Weather Service Phoenix AZ 1001 PM MST Tue Mar 17 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>544-546-548-550-551-181100- 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 1001 PM MST Tue Mar 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM THURSDAY TO 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 59 to 68. West wind 5 to 10 mph in the evening becoming northeast around 5 mph after midnight. .WEDNESDAY...Sunny and hot. Highs 97 to 101. East wind around 5 mph in the morning becoming west in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 61 to 69. Northwest wind 5 to 10 mph in the evening becoming northeast after midnight. .THURSDAY...Sunny and hot. Highs 100 to 104. East wind 5 to 10 mph in the morning becoming west around 5 mph in the afternoon. .THURSDAY NIGHT...Clear. Lows 63 to 70. Northwest wind around 5 mph in the evening becoming northeast after midnight. .FRIDAY...Sunny and hot. Highs 102 to 108. .FRIDAY NIGHT...Clear. Lows 65 to 71. .SATURDAY...Sunny and hot. Highs 101 to 107. .SATURDAY NIGHT...Clear. Lows 65 to 71. .SUNDAY...Partly sunny and hot. Highs 97 to 102. .SUNDAY NIGHT...Mostly clear. Lows 62 to 69. .MONDAY...Mostly sunny. Highs 94 to 99. .MONDAY NIGHT...Mostly clear. Lows 61 to 68. .TUESDAY...Mostly sunny. Highs 94 to 99. $$ AZZ541-549-555-181100- Cave Creek/New River-Fountain Hills/East Mesa- Apache Junction/Gold Canyon- Including the cities of Scottsdale, Fountain Hills, and Apache Junction 1001 PM MST Tue Mar 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM THURSDAY TO 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 57 to 67. North wind around 5 mph in the evening becoming northeast 5 to 10 mph after midnight. .WEDNESDAY...Sunny and hot. Highs 95 to 100. Northeast wind 5 to 10 mph in the morning becoming west in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 60 to 70. North wind around 5 mph in the evening becoming northeast 5 to 10 mph after midnight. .THURSDAY...Sunny and hot. Highs 99 to 104. East wind 5 to 10 mph in the morning becoming west around 5 mph in the afternoon. .THURSDAY NIGHT...Clear. Lows 61 to 71. Northeast wind 5 to 10 mph. .FRIDAY...Sunny and hot. Highs 101 to 105. .FRIDAY NIGHT...Clear. Lows 66 to 71. .SATURDAY...Sunny and hot. Highs 99 to 105. .SATURDAY NIGHT...Clear. Lows 66 to 71. .SUNDAY...Partly sunny and hot. Highs 96 to 102. .SUNDAY NIGHT...Mostly clear. Lows 63 to 68. .MONDAY...Partly sunny. Highs 92 to 98. .MONDAY NIGHT...Mostly clear. Lows 62 to 67. .TUESDAY...Sunny. Highs 92 to 98. $$ AZZ553-554-181100- Northwest Pinal County-West Pinal County- Including the cities of Casa Grande, Cactus Forest, Florence, and Coolidge 1001 PM MST Tue Mar 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM THURSDAY TO 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 54 to 64. West wind around 5 mph in the evening becoming southeast after midnight. .WEDNESDAY...Sunny and hot. Highs 96 to 101. East wind around 5 mph in the morning becoming north 5 to 10 mph in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 57 to 67. Northwest wind around 5 mph in the evening becoming southeast after midnight. .THURSDAY...Sunny and hot. Highs 100 to 105. East wind around 5 mph in the morning becoming north in the afternoon. .THURSDAY NIGHT...Clear. Lows 58 to 68. Light wind in the evening becoming southeast around 5 mph after midnight. .FRIDAY...Sunny and hot. Highs 101 to 107. .FRIDAY NIGHT...Clear. Lows 62 to 69. .SATURDAY...Sunny and hot. Highs 101 to 107. .SATURDAY NIGHT...Clear. Lows 61 to 68. .SUNDAY...Partly sunny and hot. Highs 99 to 103. .SUNDAY NIGHT...Mostly clear. Lows 57 to 65. .MONDAY...Mostly sunny and hot. Highs 94 to 100. .MONDAY NIGHT...Mostly clear. Lows 57 to 64. .TUESDAY...Sunny and hot. Highs 94 to 100. $$ AZZ532-181100- Yuma- Including the cities of Yuma and Fortuna Foothills 1001 PM MST Tue Mar 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM THURSDAY TO 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 62 to 66. Northwest wind around 5 mph in the evening becoming light after midnight. .WEDNESDAY...Sunny and hot. Highs near 102. Northeast wind around 5 mph in the morning becoming northwest in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 64 to 68. Northwest wind around 5 mph in the evening becoming light after midnight. .THURSDAY...Sunny and hot. Highs near 105. Northeast wind 5 to 10 mph in the morning becoming northwest around 5 mph in the afternoon. .THURSDAY NIGHT...Clear. Lows 67 to 70. Light wind. .FRIDAY...Sunny and hot. Highs 106 to 108. .FRIDAY NIGHT...Clear. Lows near 70. .SATURDAY...Sunny and hot. Highs 104 to 108. .SATURDAY NIGHT...Clear in the evening then becoming partly cloudy. Lows in the mid to upper 60s. .SUNDAY...Partly sunny and hot. Highs 99 to 101. .SUNDAY NIGHT...Mostly clear. Lows in the lower to mid 60s. .MONDAY...Sunny. Not as warm. Highs in the 90s. .MONDAY NIGHT...Mostly clear. Lows in the lower to mid 60s. .TUESDAY...Mostly sunny. Highs in the mid to upper 90s. $$ AZZ562-181100- Globe/Miami- Including the cities of Globe and Miami 1001 PM MST Tue Mar 17 2026 .TONIGHT...Clear. Not as cool. Lows 49 to 59. Northwest wind 5 to 10 mph. .WEDNESDAY...Sunny and warmer. Highs 85 to 95. North wind 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows 50 to 60. Northwest wind 5 to 10 mph in the evening becoming east around 5 mph after midnight. .THURSDAY...Sunny. Highs 88 to 98. East wind around 5 mph in the morning becoming southwest in the afternoon. .THURSDAY NIGHT...Clear. Not as cool. Lows 55 to 65. North wind around 5 mph in the evening becoming northeast after midnight. .FRIDAY...Sunny and hot. Highs 94 to 100. .FRIDAY NIGHT...Clear. Lows in the lower to mid 60s. .SATURDAY...Sunny. Highs in the mid to upper 90s. .SATURDAY NIGHT...Clear. Lows in the lower 60s. .SUNDAY...Partly sunny. Highs 89 to 95. .SUNDAY NIGHT...Mostly clear. Lows near 60. .MONDAY...Sunny. Highs 86 to 92. .MONDAY NIGHT...Mostly clear. Lows near 60. .TUESDAY...Mostly sunny. Highs near 90. $$ AZZ545-547-552-561-181100- New River Mesa-Rio Verde/Salt River-Superior-Dripping Springs- Including the cities of Tortilla Flat, Superior, Hayden, and Winkelman 1001 PM MST Tue Mar 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM THURSDAY TO 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 57 to 67. North wind 5 to 10 mph in the evening becoming northeast after midnight. .WEDNESDAY...Sunny and hot. Highs 96 to 101. Northeast wind 5 to 10 mph in the morning becoming northwest in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 59 to 69. North wind 5 to 10 mph. .THURSDAY...Sunny and hot. Highs 100 to 105. Northeast wind 5 to 10 mph in the morning becoming southwest around 5 mph in the afternoon. .THURSDAY NIGHT...Clear. Lows 61 to 71. Northeast wind 5 to 10 mph. .FRIDAY...Sunny and hot. Highs 94 to 106. .FRIDAY NIGHT...Clear. Lows 63 to 71. .SATURDAY...Sunny and hot. Highs 93 to 105. .SATURDAY NIGHT...Clear. Lows 62 to 70. .SUNDAY...Partly sunny and hot. Highs 89 to 101. .SUNDAY NIGHT...Mostly clear. Lows 59 to 67. .MONDAY...Partly sunny. Highs 86 to 98. .MONDAY NIGHT...Mostly clear. Lows 59 to 67. .TUESDAY...Sunny. Highs 86 to 98. $$ AZZ556>558-181100- Tonto Basin-Mazatzal Mountains-Pinal/Superstition Mountains- Including the cities of Punkin Center and Sunflower 1001 PM MST Tue Mar 17 2026 .TONIGHT...Clear. Lows 53 to 63. North wind 5 to 10 mph in the evening becoming northeast after midnight. .WEDNESDAY...Sunny and warmer. Highs 91 to 96. Northeast wind 5 to 10 mph in the morning becoming northwest in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 56 to 66. Northwest wind 5 to 10 mph in the evening becoming northeast after midnight. .THURSDAY...Sunny. Highs 94 to 99. East wind 5 to 10 mph in the morning becoming southwest in the afternoon. .THURSDAY NIGHT...Clear. Lows 57 to 67. Northeast wind 5 to 10 mph. .FRIDAY...Sunny and hot. Highs 87 to 101. .FRIDAY NIGHT...Clear. Lows 59 to 67. .SATURDAY...Sunny and hot. Highs 86 to 100. .SATURDAY NIGHT...Clear. Lows 58 to 66. .SUNDAY...Partly sunny. Highs 82 to 96. .SUNDAY NIGHT...Mostly clear. Lows 55 to 63. .MONDAY...Mostly sunny. Highs 79 to 93. .MONDAY NIGHT...Mostly clear. Lows 55 to 63. .TUESDAY...Sunny. Highs 79 to 93. $$ AZZ560-563-181100- San Carlos-Southeast Gila County- Including the cities of San Carlos and Peridot 1001 PM MST Tue Mar 17 2026 .TONIGHT...Clear. Lows 49 to 59. Northeast wind 5 to 10 mph. .WEDNESDAY...Sunny and warmer. Highs 85 to 95. Northeast wind 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows 53 to 63. Northeast wind 5 to 10 mph. .THURSDAY...Sunny. Highs 87 to 97. East wind 5 to 10 mph in the morning becoming southwest around 5 mph in the afternoon. .THURSDAY NIGHT...Clear. Lows 55 to 65. Northeast wind 5 to 10 mph. .FRIDAY...Sunny and hot. Highs 88 to 100. .FRIDAY NIGHT...Clear. Lows 46 to 66. .SATURDAY...Sunny and hot. Highs 86 to 100. .SATURDAY NIGHT...Clear. Lows 46 to 64. .SUNDAY...Partly sunny. Not as warm. Highs 81 to 95. .SUNDAY NIGHT...Partly cloudy. Lows 44 to 62. .MONDAY...Sunny. Highs 78 to 92. .MONDAY NIGHT...Mostly clear. Lows 43 to 62. .TUESDAY...Mostly sunny. Highs 79 to 93. $$ AZZ539-559-181100- Gila Bend-Sonoran Desert Natl Monument- Including the cities of Gila Bend, Sentinel, and Kaka 1001 PM MST Tue Mar 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM THURSDAY TO 8 PM MST SUNDAY... .TONIGHT...Clear and warmer. Lows 61 to 71. West wind around 5 mph in the evening becoming light after midnight. .WEDNESDAY...Sunny and hot. Highs 97 to 102. East wind around 5 mph in the morning becoming north 5 to 10 mph in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 63 to 73. Northwest wind around 5 mph in the evening becoming light after midnight. .THURSDAY...Sunny and hot. Highs 101 to 106. East wind around 5 mph in the morning becoming north in the afternoon. .THURSDAY NIGHT...Clear. Lows 64 to 74. Light wind. .FRIDAY...Sunny and hot. Highs 103 to 108. .FRIDAY NIGHT...Clear. Lows 65 to 74. .SATURDAY...Sunny and hot. Highs 102 to 108. .SATURDAY NIGHT...Clear. Lows 65 to 72. .SUNDAY...Partly sunny and hot. Highs 97 to 103. .SUNDAY NIGHT...Partly cloudy in the evening then becoming clear. Lows 61 to 68. .MONDAY...Mostly sunny. Highs 93 to 99. .MONDAY NIGHT...Mostly clear. Lows 59 to 67. .TUESDAY...Sunny and hot. Highs 94 to 100. $$ AZZ534-538-181100- Aguila Valley-Tonopah Desert- Including the cities of Aguila, Gladden, Wickenburg, Arlington, Hassayampa, Tonopah, and Wintersburg 1001 PM MST Tue Mar 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM THURSDAY TO 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 59 to 69. West wind around 5 mph in the evening becoming north after midnight. .WEDNESDAY...Sunny and hot. Highs 96 to 101. Northeast wind 5 to 10 mph in the morning becoming southwest around 5 mph in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 61 to 71. North wind 5 to 10 mph. .THURSDAY...Sunny and hot. Highs 100 to 105. Northeast wind 5 to 10 mph in the morning becoming southwest around 5 mph in the afternoon. .THURSDAY NIGHT...Clear. Lows 61 to 71. North wind around 5 mph. .FRIDAY...Sunny and hot. Highs 101 to 107. .FRIDAY NIGHT...Clear. Lows 62 to 72. .SATURDAY...Sunny and hot. Highs 100 to 106. .SATURDAY NIGHT...Mostly clear. Lows 61 to 71. .SUNDAY...Partly sunny and hot. Highs 94 to 102. .SUNDAY NIGHT...Partly cloudy in the evening then becoming clear. Lows 58 to 68. .MONDAY...Partly sunny in the morning then becoming sunny. Highs 92 to 98. .MONDAY NIGHT...Mostly clear. Lows 56 to 65. .TUESDAY...Mostly sunny. Highs 92 to 98. $$ AZZ531-533-181100- Kofa-Central La Paz- Including the cities of Palm Canyon, Brenda, Harcuvar, Quartzsite, Vicksburg, Vicksburg Junction, and Salome 1001 PM MST Tue Mar 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM THURSDAY TO 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 60 to 70. Northwest wind 5 to 10 mph in the evening becoming north after midnight. .WEDNESDAY...Sunny and hot. Highs 97 to 102. East wind 5 to 10 mph in the morning becoming west in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 62 to 72. North wind 5 to 10 mph. .THURSDAY...Sunny and hot. Highs 101 to 106. Northeast wind around 5 mph in the morning becoming northwest 5 to 10 mph in the afternoon. .THURSDAY NIGHT...Clear. Lows 64 to 74. Northwest wind around 5 mph in the evening becoming northeast after midnight. .FRIDAY...Sunny and hot. Highs 100 to 108. .FRIDAY NIGHT...Clear. Lows 63 to 74. .SATURDAY...Sunny and hot. Highs 99 to 107. .SATURDAY NIGHT...Partly cloudy. Lows 61 to 71. .SUNDAY...Partly sunny and hot. Highs 93 to 101. .SUNDAY NIGHT...Partly cloudy. Lows 59 to 68. .MONDAY...Mostly sunny. Highs 90 to 98. .MONDAY NIGHT...Mostly clear. Lows 57 to 66. .TUESDAY...Mostly sunny. Highs 90 to 98. $$ AZZ535-536-181100- Southeast Yuma County-Gila River Valley- Including the city of Ligurta 1001 PM MST Tue Mar 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM THURSDAY TO 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 60 to 70. West wind around 5 mph in the evening becoming light after midnight. .WEDNESDAY...Sunny and hot. Highs 98 to 103. Northeast wind around 5 mph in the morning becoming north in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 61 to 71. Northwest wind around 5 mph in the evening becoming light after midnight. .THURSDAY...Sunny and hot. Highs 101 to 106. Northeast wind around 5 mph in the morning becoming northwest in the afternoon. .THURSDAY NIGHT...Clear. Lows 63 to 73. Northwest wind around 5 mph in the evening becoming light after midnight. .FRIDAY...Sunny and hot. Highs 105 to 108. .FRIDAY NIGHT...Clear. Lows 64 to 73. .SATURDAY...Sunny and hot. Highs 103 to 107. .SATURDAY NIGHT...Mostly clear. Lows 61 to 70. .SUNDAY...Partly sunny and hot. Highs 97 to 101. .SUNDAY NIGHT...Mostly clear. Lows 57 to 66. .MONDAY...Sunny. Highs 91 to 97. .MONDAY NIGHT...Mostly clear. Lows 55 to 64. .TUESDAY...Sunny. Highs 93 to 99. $$ AZZ530-CAZ569-181100- Parker Valley-Palo Verde Valley- Including the cities of Parker, Ehrenberg, Martinez Lake, Blythe, Palo Verde, and Ripley 1001 PM MST Tue Mar 17 2026 /1001 PM PDT Tue Mar 17 2026/ ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM MST /11 AM PDT/ WEDNESDAY TO 8 PM MST /8 PM PDT/ SUNDAY... .TONIGHT...Clear. Lows 57 to 67. Northwest wind 5 to 10 mph. .WEDNESDAY...Sunny and hot. Highs 98 to 103. North wind around 5 mph. .WEDNESDAY NIGHT...Clear. Lows 59 to 69. North wind around 5 mph. .THURSDAY...Sunny and hot. Highs 102 to 107. North wind 5 to 10 mph. .THURSDAY NIGHT...Clear. Lows 61 to 71. Northwest wind around 5 mph in the evening becoming north after midnight. .FRIDAY...Sunny and hot. Highs 105 to 109. .FRIDAY NIGHT...Clear. Lows 62 to 71. .SATURDAY...Sunny and hot. Highs 103 to 108. .SATURDAY NIGHT...Partly cloudy. Lows 61 to 68. .SUNDAY...Partly sunny and hot. Highs 97 to 102. .SUNDAY NIGHT...Partly cloudy. Lows 58 to 66. .MONDAY...Sunny and hot. Highs 94 to 100. .MONDAY NIGHT...Mostly clear. Lows 57 to 64. .TUESDAY...Mostly sunny and hot. Highs 94 to 100. $$ CAZ564-565-568-570-181100- Chuckwalla Mountains-Imperial County Southeast-Chiriaco Summit- Chuckwalla Valley- Including the cities of Imperial Hot Mineral Springs, Winterhaven, Chiriaco Summit, and Midland 1001 PM PDT Tue Mar 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM WEDNESDAY TO 8 PM PDT SUNDAY... .TONIGHT...Clear. Lows 63 to 73. Northwest wind 5 to 10 mph. .WEDNESDAY...Sunny and hot. Highs 99 to 104. North wind 5 to 10 mph. .WEDNESDAY NIGHT...Clear. Lows 63 to 73. Northwest wind 5 to 10 mph. .THURSDAY...Sunny and hot. Highs 102 to 107. North wind 5 to 10 mph. .THURSDAY NIGHT...Clear. Lows 65 to 75. Northwest wind 5 to 10 mph. .FRIDAY...Sunny and hot. Highs 98 to 108. .FRIDAY NIGHT...Clear. Lows 66 to 76. .SATURDAY...Sunny and hot. Highs 96 to 108. .SATURDAY NIGHT...Partly cloudy. Lows 64 to 72. .SUNDAY...Partly sunny and hot. Highs 92 to 102. .SUNDAY NIGHT...Partly cloudy. Lows 62 to 70. .MONDAY...Sunny. Highs 89 to 99. .MONDAY NIGHT...Mostly clear. Lows 59 to 67. .TUESDAY...Sunny. Highs 89 to 99. $$ CAZ563-567-181100- Salton Sea-Imperial Valley- Including the cities of Desert Shores, El Centro, Calexico, Alamorio, and Brawley 1001 PM PDT Tue Mar 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM WEDNESDAY TO 8 PM PDT SUNDAY... .TONIGHT...Clear. Lows 62 to 72. West wind around 5 mph. .WEDNESDAY...Sunny and hot. Highs 101 to 106. South wind around 5 mph in the morning becoming north in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 63 to 73. Northwest wind around 5 mph. .THURSDAY...Sunny and hot. Highs 104 to 109. North wind around 5 mph. .THURSDAY NIGHT...Clear. Lows 66 to 76. Northwest wind around 5 mph. .FRIDAY...Sunny and very hot. Highs 101 to 111. .FRIDAY NIGHT...Clear. Lows 66 to 75. .SATURDAY...Mostly sunny and hot. Highs 101 to 109. .SATURDAY NIGHT...Partly cloudy. Lows 63 to 71. .SUNDAY...Partly sunny and hot. Highs 96 to 104. .SUNDAY NIGHT...Partly cloudy. Lows 60 to 69. .MONDAY...Sunny and hot. Highs 93 to 101. .MONDAY NIGHT...Clear in the evening then becoming partly cloudy. Lows 58 to 68. .TUESDAY...Mostly sunny and hot. Highs 92 to 100. $$ CAZ566-181100- Imperial County West- Including the cities of Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, and Plaster City 1001 PM PDT Tue Mar 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM WEDNESDAY TO 8 PM PDT SUNDAY... .TONIGHT...Clear. Lows 66 to 76. West wind 5 to 10 mph. .WEDNESDAY...Sunny and hot. Highs 100 to 105. West wind around 5 mph in the morning becoming east in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 67 to 77. West wind 5 to 10 mph. .THURSDAY...Sunny and hot. Highs 103 to 108. Northwest wind around 5 mph in the morning becoming east in the afternoon. .THURSDAY NIGHT...Clear. Lows 69 to 79. West wind 5 to 10 mph. .FRIDAY...Sunny and very hot. Highs 106 to 110. .FRIDAY NIGHT...Clear. Lows 67 to 78. .SATURDAY...Sunny in the morning then becoming partly sunny. Hot. Highs 105 to 109. .SATURDAY NIGHT...Partly cloudy and cooler. Lows 64 to 73. .SUNDAY...Partly sunny and hot. Highs 100 to 104. .SUNDAY NIGHT...Mostly clear. Lows 62 to 72. .MONDAY...Sunny and hot. Highs 98 to 102. .MONDAY NIGHT...Partly cloudy. Lows 60 to 71. .TUESDAY...Sunny and hot. Highs 96 to 100. $$ CAZ562-181100- Imperial County Southwest- Including the city of Mountain Spring 1001 PM PDT Tue Mar 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM WEDNESDAY TO 8 PM PDT SUNDAY... .TONIGHT...Clear. Lows 71 to 81. West wind 5 to 10 mph. .WEDNESDAY...Sunny and hot. Highs 100 to 105. Southwest wind 5 to 10 mph in the morning becoming east in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 72 to 82. Southwest wind 5 to 10 mph. .THURSDAY...Sunny and hot. Highs 102 to 107. West wind 5 to 10 mph in the morning becoming east in the afternoon. .THURSDAY NIGHT...Clear. Lows 73 to 83. West wind 5 to 10 mph. .FRIDAY...Sunny and very hot. Highs 100 to 110. .FRIDAY NIGHT...Clear. Lows 70 to 81. .SATURDAY...Mostly sunny and hot. Highs 97 to 107. .SATURDAY NIGHT...Partly cloudy and cooler. Lows 65 to 76. .SUNDAY...Partly sunny and hot. Highs 93 to 103. .SUNDAY NIGHT...Mostly clear. Lows 65 to 76. .MONDAY...Sunny and hot. Highs 91 to 101. .MONDAY NIGHT...Partly cloudy. Lows 63 to 74. .TUESDAY...Mostly sunny and hot. Highs 90 to 100. $$ CAZ560-181100- Joshua Tree NP West- Including the cities of Cottonwood Visitor and Lost Horse-Keys Village 1001 PM PDT Tue Mar 17 2026 .TONIGHT...Clear. Lows 61 to 71. North wind 5 to 10 mph. .WEDNESDAY...Sunny. Highs 83 to 93. North wind 5 to 10 mph in the morning becoming southeast around 5 mph in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 62 to 72. West wind 5 to 10 mph in the evening becoming northwest after midnight. .THURSDAY...Sunny. Highs 86 to 96. North wind 5 to 10 mph in the morning becoming southeast in the afternoon. .THURSDAY NIGHT...Clear. Lows 63 to 73. Northwest wind 5 to 10 mph. .FRIDAY...Sunny. Highs 88 to 98. .FRIDAY NIGHT...Clear. Lows 59 to 72. .SATURDAY...Sunny in the morning then becoming partly sunny. Highs 84 to 94. .SATURDAY NIGHT...Partly cloudy. Lows 55 to 68. .SUNDAY...Partly cloudy. Highs 80 to 90. .SUNDAY NIGHT...Clear. Lows 55 to 67. .MONDAY...Sunny. Highs 79 to 89. .MONDAY NIGHT...Partly cloudy. Lows 54 to 66. .TUESDAY...Sunny. Highs 79 to 89. $$ CAZ561-181100- Joshua Tree NP East- 1001 PM PDT Tue Mar 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM WEDNESDAY TO 8 PM PDT SUNDAY... .TONIGHT...Clear. Lows 60 to 70. Northwest wind 5 to 10 mph. .WEDNESDAY...Sunny. Highs 89 to 99. Northwest wind 5 to 10 mph in the morning becoming northeast around 5 mph in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 62 to 72. South wind around 5 mph in the evening becoming west 5 to 10 mph after midnight. .THURSDAY...Sunny and hot. Highs 92 to 102. Northwest wind 5 to 10 mph in the morning becoming east around 5 mph in the afternoon. .THURSDAY NIGHT...Clear. Lows 63 to 73. Southwest wind around 5 mph in the evening becoming northwest 5 to 10 mph after midnight. .FRIDAY...Sunny and hot. Highs 96 to 104. .FRIDAY NIGHT...Clear. Lows 67 to 72. .SATURDAY...Mostly sunny and hot. Highs 94 to 102. .SATURDAY NIGHT...Partly cloudy. Lows 64 to 69. .SUNDAY...Partly cloudy. Not as warm. Highs 89 to 97. .SUNDAY NIGHT...Mostly clear. Lows 63 to 68. .MONDAY...Sunny. Highs 88 to 96. .MONDAY NIGHT...Partly cloudy. Lows 62 to 67. .TUESDAY...Sunny. Highs 88 to 96. $$ Visit us on Facebook, Twitter, and at weather.gov/phoenix