FPUS55 KPSR 182046 ZFPPSR Zone Forecast Product for Southwest Arizona/Southeast California National Weather Service Phoenix AZ 146 PM MST Wed Mar 18 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>544-546-548-550-551-182300- 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 146 PM MST Wed Mar 18 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM THURSDAY TO 8 PM MST SUNDAY... .TODAY...Sunny and hot. Highs 97 to 101. West wind 5 to 10 mph. .TONIGHT...Clear. Lows 61 to 69. Northwest wind 5 to 10 mph in the evening becoming northeast after midnight. .THURSDAY...Sunny and hot. Highs 101 to 104. East wind 5 to 10 mph in the morning becoming south around 5 mph in the afternoon. .THURSDAY NIGHT...Clear. Lows 63 to 70. Northwest wind around 5 mph in the evening becoming northeast 5 to 10 mph after midnight. .FRIDAY...Sunny and hot. Highs 103 to 106. East wind 5 to 10 mph in the morning becoming southwest around 5 mph in the afternoon. .FRIDAY NIGHT...Clear. Lows 64 to 71. .SATURDAY...Sunny and hot. Highs 101 to 107. .SATURDAY NIGHT...Mostly clear. Lows 65 to 71. .SUNDAY...Partly sunny and hot. Highs 98 to 103. .SUNDAY NIGHT...Mostly clear. Lows 62 to 69. .MONDAY...Sunny and hot. Highs 96 to 102. .MONDAY NIGHT...Clear. Lows 62 to 69. .TUESDAY...Sunny and hot. Highs 96 to 101. $$ AZZ541-549-555-182300- Cave Creek/New River-Fountain Hills/East Mesa- Apache Junction/Gold Canyon- Including the cities of Scottsdale, Fountain Hills, and Apache Junction 146 PM MST Wed Mar 18 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM THURSDAY TO 8 PM MST SUNDAY... .TODAY...Sunny and hot. Highs 96 to 101. West wind 5 to 10 mph. .TONIGHT...Clear. Lows 60 to 70. North wind around 5 mph in the evening becoming northeast 5 to 10 mph after midnight. .THURSDAY...Sunny and hot. Highs 99 to 104. Northeast wind 5 to 10 mph in the morning becoming southwest around 5 mph in the afternoon. .THURSDAY NIGHT...Clear. Lows 61 to 71. North wind 5 to 10 mph. .FRIDAY...Sunny and hot. Highs 100 to 105. East wind 5 to 10 mph in the morning becoming southwest in the afternoon. .FRIDAY NIGHT...Clear. Lows 65 to 71. .SATURDAY...Sunny and hot. Highs 100 to 106. .SATURDAY NIGHT...Mostly clear. Lows 66 to 71. .SUNDAY...Partly sunny and hot. Highs 96 to 102. .SUNDAY NIGHT...Mostly clear. Lows 63 to 68. .MONDAY...Sunny and hot. Highs 94 to 100. .MONDAY NIGHT...Clear. Lows 63 to 68. .TUESDAY...Sunny and hot. Highs 95 to 101. $$ AZZ553-554-182300- Northwest Pinal County-West Pinal County- Including the cities of Casa Grande, Cactus Forest, Florence, and Coolidge 146 PM MST Wed Mar 18 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM THURSDAY TO 8 PM MST SUNDAY... .TODAY...Sunny and hot. Highs 96 to 101. Northwest wind around 5 mph. .TONIGHT...Clear. Lows 56 to 66. West wind around 5 mph in the evening becoming southeast after midnight. .THURSDAY...Sunny and hot. Highs 99 to 104. East wind around 5 mph in the morning becoming northeast in the afternoon. .THURSDAY NIGHT...Clear. Lows 58 to 68. Northwest wind around 5 mph in the evening becoming southeast 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 59 to 69. .SATURDAY...Sunny and hot. Highs 102 to 106. .SATURDAY NIGHT...Clear. Lows 60 to 69. .SUNDAY...Partly sunny and hot. Highs 99 to 103. .SUNDAY NIGHT...Mostly clear. Lows 58 to 65. .MONDAY...Sunny and hot. Highs 96 to 102. .MONDAY NIGHT...Clear. Lows 57 to 65. .TUESDAY...Mostly sunny and hot. Highs 97 to 101. $$ AZZ532-182300- Yuma- Including the cities of Yuma and Fortuna Foothills 146 PM MST Wed Mar 18 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM THURSDAY TO 8 PM MST SUNDAY... .TODAY...Sunny and hot. Highs near 103. Northwest wind around 5 mph. .TONIGHT...Clear. Lows 63 to 67. West wind around 5 mph in the evening becoming light after midnight. .THURSDAY...Sunny and hot. Highs near 105. North wind around 5 mph. .THURSDAY NIGHT...Clear. Lows 66 to 70. Light wind in the evening becoming north around 5 mph after midnight. .FRIDAY...Sunny and hot. Highs near 107. Northeast wind around 5 mph in the morning becoming west in the afternoon. .FRIDAY NIGHT...Clear. Lows 67 to 73. .SATURDAY...Sunny and hot. Highs 104 to 108. .SATURDAY NIGHT...Partly cloudy. Lows in the mid to upper 60s. .SUNDAY...Partly sunny and hot. Highs 99 to 103. .SUNDAY NIGHT...Mostly clear. Lows 62 to 67. .MONDAY...Sunny. Not as warm. Highs in the mid to upper 90s. .MONDAY NIGHT...Clear. Lows 59 to 64. .TUESDAY...Sunny. Highs in the upper 90s. $$ AZZ562-182300- Globe/Miami- Including the cities of Globe and Miami 146 PM MST Wed Mar 18 2026 .TODAY...Sunny and warmer. Highs 84 to 94. Northwest wind 5 to 10 mph. .TONIGHT...Mostly clear. Lows 52 to 62. Northwest wind 5 to 10 mph in the evening becoming east around 5 mph after midnight. .THURSDAY...Sunny. Highs 88 to 98. Southeast wind around 5 mph. .THURSDAY NIGHT...Clear. Lows 55 to 65. Northwest wind around 5 mph in the evening becoming northeast after midnight. .FRIDAY...Sunny and hot. Highs 90 to 100. East wind around 5 mph in the morning becoming west 5 to 10 mph in the afternoon. .FRIDAY NIGHT...Clear. Lows in the lower to mid 60s. .SATURDAY...Sunny. Highs 93 to 99. .SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. .SUNDAY...Partly sunny. Not as warm. Highs in the lower to mid 90s. .SUNDAY NIGHT...Mostly clear. Lows near 60. .MONDAY...Sunny. Highs 88 to 94. .MONDAY NIGHT...Clear. Lows near 60. .TUESDAY...Mostly sunny. Highs near 90. $$ AZZ545-547-552-561-182300- New River Mesa-Rio Verde/Salt River-Superior-Dripping Springs- Including the cities of Tortilla Flat, Superior, Hayden, and Winkelman 146 PM MST Wed Mar 18 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM THURSDAY TO 8 PM MST SUNDAY... .TODAY...Sunny and hot. Highs 97 to 102. West wind 5 to 10 mph. .TONIGHT...Mostly clear. Lows 61 to 71. North wind 5 to 10 mph in the evening becoming northeast after midnight. .THURSDAY...Sunny and hot. Highs 100 to 105. Northeast wind 5 to 10 mph in the morning becoming southwest around 5 mph in the afternoon. .THURSDAY NIGHT...Clear. Lows 61 to 71. North wind 5 to 10 mph. .FRIDAY...Sunny and hot. Highs 101 to 106. East wind 5 to 10 mph in the morning becoming southwest in the afternoon. .FRIDAY NIGHT...Clear. Lows 63 to 71. .SATURDAY...Sunny and hot. Highs 93 to 105. .SATURDAY NIGHT...Clear. Lows 63 to 71. .SUNDAY...Partly sunny and hot. Highs 88 to 102. .SUNDAY NIGHT...Mostly clear. Lows 60 to 68. .MONDAY...Sunny. Highs 87 to 99. .MONDAY NIGHT...Clear. Lows 60 to 68. .TUESDAY...Sunny and hot. Highs 88 to 100. $$ AZZ556>558-182300- Tonto Basin-Mazatzal Mountains-Pinal/Superstition Mountains- Including the cities of Punkin Center and Sunflower 146 PM MST Wed Mar 18 2026 .TODAY...Sunny and warmer. Highs 92 to 97. Northwest wind 5 to 10 mph. .TONIGHT...Mostly clear. Lows 56 to 66. Northwest wind 5 to 10 mph in the evening becoming northeast 10 to 15 mph after midnight. .THURSDAY...Sunny and hot. Highs 95 to 100. East wind 10 to 15 mph in the morning becoming southeast 5 to 10 mph in the afternoon. .THURSDAY NIGHT...Clear. Lows 58 to 68. Northwest 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 60 to 68. .SATURDAY...Sunny and hot. Highs 86 to 100. .SATURDAY NIGHT...Clear. Lows 59 to 67. .SUNDAY...Partly sunny. Highs 82 to 96. .SUNDAY NIGHT...Mostly clear. Lows 56 to 64. .MONDAY...Sunny. Highs 81 to 95. .MONDAY NIGHT...Clear. Lows 56 to 64. .TUESDAY...Sunny. Highs 81 to 95. $$ AZZ560-563-182300- San Carlos-Southeast Gila County- Including the cities of San Carlos and Peridot 146 PM MST Wed Mar 18 2026 .TODAY...Sunny and warmer. Highs 85 to 95. Northwest wind 5 to 10 mph. .TONIGHT...Mostly clear. Lows 53 to 63. Northeast wind 5 to 10 mph. .THURSDAY...Sunny. Highs 87 to 97. East wind 5 to 10 mph in the morning becoming southwest in the afternoon. .THURSDAY NIGHT...Clear. Lows 56 to 66. North wind around 5 mph in the evening becoming northeast 5 to 10 mph after midnight. .FRIDAY...Sunny and hot. Highs 90 to 100. Northeast wind around 5 mph in the morning becoming west 5 to 10 mph in the afternoon. .FRIDAY NIGHT...Clear. Lows 46 to 66. .SATURDAY...Sunny. Highs 85 to 99. .SATURDAY NIGHT...Clear. Lows 46 to 65. .SUNDAY...Partly sunny. Highs 82 to 96. .SUNDAY NIGHT...Partly cloudy. Lows 43 to 62. .MONDAY...Sunny. Highs 80 to 94. .MONDAY NIGHT...Clear. Lows 43 to 62. .TUESDAY...Sunny. Highs 81 to 95. $$ AZZ539-559-182300- Gila Bend-Sonoran Desert Natl Monument- Including the cities of Gila Bend, Sentinel, and Kaka 146 PM MST Wed Mar 18 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM THURSDAY TO 8 PM MST SUNDAY... .TODAY...Sunny and hot. Highs 98 to 103. Northwest wind around 5 mph. .TONIGHT...Clear. Lows 62 to 72. West 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 northeast in the afternoon. .THURSDAY NIGHT...Clear. Lows 65 to 75. West wind around 5 mph in the evening becoming light after midnight. .FRIDAY...Sunny and hot. Highs 104 to 109. East wind around 5 mph in the morning becoming northwest in the afternoon. .FRIDAY NIGHT...Clear. Lows 65 to 74. .SATURDAY...Sunny and hot. Highs 102 to 108. .SATURDAY NIGHT...Clear. Lows 65 to 73. .SUNDAY...Mostly sunny and hot. Highs 97 to 103. .SUNDAY NIGHT...Mostly clear and cooler. Lows 62 to 68. .MONDAY...Sunny and hot. Highs 95 to 101. .MONDAY NIGHT...Clear. Lows 59 to 68. .TUESDAY...Sunny and hot. Highs 96 to 102. $$ AZZ534-538-182300- Aguila Valley-Tonopah Desert- Including the cities of Aguila, Gladden, Wickenburg, Arlington, Hassayampa, Tonopah, and Wintersburg 146 PM MST Wed Mar 18 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM THURSDAY TO 8 PM MST SUNDAY... .TODAY...Sunny and hot. Highs 96 to 101. Southwest wind around 5 mph. .TONIGHT...Clear. Lows 61 to 71. Northwest wind around 5 mph. .THURSDAY...Sunny and hot. Highs 100 to 105. Northeast wind 5 to 10 mph in the morning becoming southeast around 5 mph in the afternoon. .THURSDAY NIGHT...Clear. Lows 62 to 72. Northwest wind around 5 mph. .FRIDAY...Sunny and hot. Highs 103 to 108. Northeast wind around 5 mph in the morning becoming southwest in the afternoon. .FRIDAY NIGHT...Clear. Lows 61 to 72. .SATURDAY...Sunny and hot. Highs 99 to 107. .SATURDAY NIGHT...Clear in the evening then becoming partly cloudy. Lows 61 to 71. .SUNDAY...Partly sunny and hot. Highs 95 to 103. .SUNDAY NIGHT...Mostly clear. Lows 58 to 68. .MONDAY...Sunny and hot. Highs 94 to 100. .MONDAY NIGHT...Clear. Lows 58 to 67. .TUESDAY...Sunny and hot. Highs 94 to 100. $$ AZZ531-533-182300- Kofa-Central La Paz- Including the cities of Palm Canyon, Brenda, Harcuvar, Quartzsite, Vicksburg, Vicksburg Junction, and Salome 146 PM MST Wed Mar 18 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM THURSDAY TO 8 PM MST SUNDAY... .TODAY...Sunny and hot. Highs 97 to 102. West wind 5 to 10 mph. .TONIGHT...Clear. Lows 63 to 73. North wind around 5 mph. .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 66 to 76. Northwest wind around 5 mph in the evening becoming northeast 5 to 10 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 63 to 76. .SATURDAY...Sunny and hot. Highs 99 to 107. .SATURDAY NIGHT...Partly cloudy and cooler. Lows 60 to 71. .SUNDAY...Partly sunny and hot. Highs 94 to 102. .SUNDAY NIGHT...Mostly clear. Lows 60 to 70. .MONDAY...Sunny and hot. Highs 92 to 100. .MONDAY NIGHT...Clear. Lows 58 to 67. .TUESDAY...Mostly sunny and hot. Highs 92 to 100. $$ AZZ535-536-182300- Southeast Yuma County-Gila River Valley- Including the city of Ligurta 146 PM MST Wed Mar 18 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM THURSDAY TO 8 PM MST SUNDAY... .TODAY...Sunny and hot. Highs 98 to 103. Northwest wind around 5 mph. .TONIGHT...Clear. Lows 61 to 71. West wind around 5 mph in the evening becoming light after midnight. .THURSDAY...Sunny and hot. Highs 101 to 106. North wind around 5 mph. .THURSDAY NIGHT...Clear. Lows 64 to 74. Northwest wind around 5 mph. .FRIDAY...Sunny and hot. Highs 103 to 108. Northeast wind around 5 mph in the morning becoming northwest in the afternoon. .FRIDAY NIGHT...Clear. Lows 64 to 74. .SATURDAY...Sunny and hot. Highs 104 to 108. .SATURDAY NIGHT...Mostly clear. Lows 62 to 71. .SUNDAY...Partly sunny and hot. Highs 98 to 102. .SUNDAY NIGHT...Mostly clear. Lows 58 to 68. .MONDAY...Sunny and hot. Highs 92 to 100. .MONDAY NIGHT...Clear. Lows 56 to 64. .TUESDAY...Sunny and hot. Highs 94 to 100. $$ AZZ530-CAZ569-182300- Parker Valley-Palo Verde Valley- Including the cities of Parker, Ehrenberg, Martinez Lake, Blythe, Palo Verde, and Ripley 146 PM MST Wed Mar 18 2026 /146 PM PDT Wed Mar 18 2026/ ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST /8 PM PDT/ SUNDAY... .TODAY...Sunny and hot. Highs 98 to 103. North wind 5 to 10 mph. .TONIGHT...Clear. Lows 58 to 68. North wind around 5 mph. .THURSDAY...Sunny and hot. Highs 101 to 106. North wind around 5 mph. .THURSDAY NIGHT...Clear. Lows 61 to 71. West wind around 5 mph in the evening becoming north 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 61 to 72. .SATURDAY...Sunny and hot. Highs 102 to 108. .SATURDAY NIGHT...Partly cloudy. Lows 62 to 69. .SUNDAY...Partly sunny and hot. Highs 98 to 104. .SUNDAY NIGHT...Mostly clear. Lows 60 to 67. .MONDAY...Sunny and hot. Highs 96 to 102. .MONDAY NIGHT...Mostly clear. Lows 58 to 65. .TUESDAY...Mostly sunny and hot. Highs 96 to 102. $$ CAZ564-565-568-570-182300- Chuckwalla Mountains-Imperial County Southeast-Chiriaco Summit- Chuckwalla Valley- Including the cities of Imperial Hot Mineral Springs, Winterhaven, Chiriaco Summit, and Midland 146 PM PDT Wed Mar 18 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT SUNDAY... .TODAY...Sunny and hot. Highs 98 to 103. North wind around 5 mph. .TONIGHT...Clear. Lows 64 to 74. Northwest wind 5 to 10 mph. .THURSDAY...Sunny and hot. Highs 101 to 106. North wind 5 to 10 mph. .THURSDAY NIGHT...Clear. Lows 66 to 76. Northwest wind 5 to 10 mph. .FRIDAY...Sunny and hot. Highs 103 to 108. North wind 5 to 10 mph in the morning becoming south in the afternoon. .FRIDAY NIGHT...Clear. Lows 66 to 76. .SATURDAY...Sunny and hot. Highs 97 to 107. .SATURDAY NIGHT...Partly cloudy. Lows 65 to 73. .SUNDAY...Partly sunny and hot. Highs 92 to 102. .SUNDAY NIGHT...Clear. Lows 62 to 70. .MONDAY...Sunny and hot. Highs 91 to 101. .MONDAY NIGHT...Mostly clear. Lows 59 to 68. .TUESDAY...Mostly sunny and hot. Highs 90 to 100. $$ CAZ563-567-182300- Salton Sea-Imperial Valley- Including the cities of Desert Shores, El Centro, Calexico, Alamorio, and Brawley 146 PM PDT Wed Mar 18 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT SUNDAY... .TODAY...Sunny and hot. Highs 101 to 106. North wind around 5 mph. .TONIGHT...Clear. Lows 63 to 73. West wind 5 to 10 mph. .THURSDAY...Sunny and hot. Highs 103 to 108. South wind around 5 mph in the morning becoming north in the afternoon. .THURSDAY NIGHT...Clear. Lows 65 to 75. Northwest wind around 5 mph. .FRIDAY...Sunny and very hot. Highs 105 to 110. North wind around 5 mph in the morning becoming southeast in the afternoon. .FRIDAY NIGHT...Clear. Lows 65 to 75. .SATURDAY...Sunny and hot. Highs 101 to 109. .SATURDAY NIGHT...Partly cloudy. Lows 64 to 73. .SUNDAY...Partly sunny and hot. Highs 97 to 105. .SUNDAY NIGHT...Clear. Lows 62 to 72. .MONDAY...Sunny and hot. Highs 95 to 103. .MONDAY NIGHT...Clear. Lows 60 to 69. .TUESDAY...Mostly sunny and hot. Highs 92 to 102. $$ CAZ566-182300- Imperial County West- Including the cities of Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, and Plaster City 146 PM PDT Wed Mar 18 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT SUNDAY... .TODAY...Sunny and hot. Highs 100 to 105. East wind around 5 mph. .TONIGHT...Clear. Lows 67 to 77. West wind 5 to 10 mph. .THURSDAY...Sunny and hot. Highs 102 to 107. Northwest wind around 5 mph in the morning becoming northeast in the afternoon. .THURSDAY NIGHT...Clear. Lows 69 to 79. West wind 5 to 10 mph. .FRIDAY...Sunny and hot. Highs 104 to 109. Northwest wind 5 to 10 mph in the morning becoming east around 5 mph in the afternoon. .FRIDAY NIGHT...Clear. Lows 66 to 77. .SATURDAY...Sunny and hot. Highs 104 to 108. .SATURDAY NIGHT...Partly cloudy. Lows 65 to 74. .SUNDAY...Partly sunny in the morning then becoming sunny. Hot. Highs 100 to 104. .SUNDAY NIGHT...Clear. Lows 63 to 74. .MONDAY...Sunny and hot. Highs 99 to 103. .MONDAY NIGHT...Clear. Lows 62 to 71. .TUESDAY...Sunny and hot. Highs 97 to 101. $$ CAZ562-182300- Imperial County Southwest- Including the city of Mountain Spring 146 PM PDT Wed Mar 18 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT SUNDAY... .TODAY...Sunny and hot. Highs 100 to 105. Northeast wind 5 to 10 mph. .TONIGHT...Clear. Lows 72 to 82. Southwest wind 5 to 15 mph. .THURSDAY...Sunny and hot. Highs 102 to 107. Northwest wind 5 to 10 mph in the morning becoming northeast in the afternoon. .THURSDAY NIGHT...Clear. Lows 72 to 82. Southwest wind 5 to 10 mph. .FRIDAY...Sunny and hot. Highs 104 to 109. Southwest wind 5 to 10 mph in the morning becoming east around 5 mph in the afternoon. .FRIDAY NIGHT...Clear. Lows 70 to 81. .SATURDAY...Sunny and hot. Highs 97 to 107. .SATURDAY NIGHT...Partly cloudy. Lows 67 to 78. .SUNDAY...Partly sunny in the morning then becoming sunny. Hot. Highs 94 to 104. .SUNDAY NIGHT...Clear. Lows 66 to 77. .MONDAY...Sunny and hot. Highs 92 to 102. .MONDAY NIGHT...Clear. Lows 64 to 75. .TUESDAY...Sunny and hot. Highs 90 to 100. $$ CAZ560-182300- Joshua Tree NP West- Including the cities of Cottonwood Visitor and Lost Horse-Keys Village 146 PM PDT Wed Mar 18 2026 .TODAY...Sunny. Highs 83 to 93. Southeast wind 5 to 10 mph. .TONIGHT...Clear. Lows 62 to 72. West wind 5 to 10 mph in the evening becoming northwest 10 to 15 mph after midnight. .THURSDAY...Sunny. Highs 86 to 96. North wind 5 to 10 mph in the morning becoming southeast in the afternoon. .THURSDAY NIGHT...Clear. Lows 64 to 74. West wind 5 to 10 mph. .FRIDAY...Sunny. Highs 87 to 97. North wind 5 to 10 mph in the morning becoming south in the afternoon. .FRIDAY NIGHT...Clear. Lows 59 to 72. .SATURDAY...Mostly sunny. Highs 84 to 94. .SATURDAY NIGHT...Partly cloudy. Lows 55 to 68. .SUNDAY...Mostly sunny. Highs 81 to 91. .SUNDAY NIGHT...Clear. Lows 56 to 68. .MONDAY...Sunny. Highs 81 to 91. .MONDAY NIGHT...Mostly clear. Lows 55 to 67. .TUESDAY...Partly sunny in the morning then becoming sunny. Highs 80 to 90. $$ CAZ561-182300- Joshua Tree NP East- 146 PM PDT Wed Mar 18 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT SUNDAY... .TODAY...Sunny. Highs 89 to 99. Northeast wind around 5 mph. .TONIGHT...Clear. Lows 61 to 71. 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 in the afternoon. .THURSDAY NIGHT...Clear. Lows 63 to 73. Southwest wind around 5 mph in the evening becoming west 5 to 10 mph after midnight. .FRIDAY...Sunny and hot. Highs 94 to 104. Northwest wind 5 to 10 mph in the morning becoming southeast in the afternoon. .FRIDAY NIGHT...Clear. Lows 67 to 72. .SATURDAY...Sunny and hot. Highs 94 to 102. .SATURDAY NIGHT...Partly cloudy. Lows 65 to 70. .SUNDAY...Mostly sunny. Highs 90 to 98. .SUNDAY NIGHT...Clear. Lows 64 to 69. .MONDAY...Sunny. Highs 90 to 98. .MONDAY NIGHT...Clear. Lows 63 to 68. .TUESDAY...Mostly sunny. Highs 89 to 97. $$ Visit us on Facebook, Twitter, and at weather.gov/phoenix