Zone Forecast Product
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
418 FPUS55 KPSR 220751 ZFPPSR Zone Forecast Product for Southwest Arizona/Southeast California National Weather Service Phoenix AZ 1250 AM MST Sat Aug 22 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>544-546-548-550-551-221100- 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 1251 AM MST Sat Aug 22 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST FRIDAY... .TONIGHT...Partly cloudy. Lows 83 to 89. East wind around 5 mph. .SATURDAY...Partly sunny in the morning then becoming mostly sunny. Hot. Highs 109 to 113. East wind around 5 mph in the morning becoming west 10 to 15 mph in the afternoon. .SATURDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows 84 to 91. East wind 5 to 15 mph. Chance of rain 20 percent. .SUNDAY...Partly sunny in the morning then becoming mostly sunny. Hot. Highs 106 to 111. South wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. .SUNDAY NIGHT...Partly cloudy. Lows 82 to 90. West wind 5 to 10 mph. .MONDAY...Partly cloudy. Highs 105 to 110. .MONDAY NIGHT...Partly cloudy. Lows 82 to 89. .TUESDAY...Mostly sunny and hot. Highs 108 to 113. .TUESDAY NIGHT...Mostly clear. Lows 84 to 90. .WEDNESDAY...Mostly sunny and hot. Highs 110 to 115. .WEDNESDAY NIGHT...Clear. Lows 84 to 91. .THURSDAY...Mostly sunny and hot. Highs 109 to 114. .THURSDAY NIGHT...Clear. Lows 84 to 90. .FRIDAY...Mostly sunny and hot. Highs 109 to 115. $$ AZZ541-549-555-221100- Cave Creek/New River-Fountain Hills/East Mesa- Apache Junction/Gold Canyon- Including the cities of Scottsdale, Fountain Hills, and Apache Junction 1251 AM MST Sat Aug 22 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST FRIDAY... .TONIGHT...Mostly clear. Lows 77 to 87. Northeast wind around 5 mph. .SATURDAY...Partly sunny in the morning then becoming mostly sunny. Hot. Highs 107 to 112. East wind 5 to 10 mph in the morning becoming west 10 to 20 mph in the afternoon. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 77 to 87. Northeast wind 10 to 20 mph in the evening decreasing to 5 to 10 mph after midnight. Chance of rain 10 percent. .SUNDAY...Partly sunny in the morning then becoming mostly sunny. Hot. Highs 105 to 110. Southeast wind 5 to 10 mph in the morning becoming southwest in the afternoon. .SUNDAY NIGHT...Partly cloudy. Lows 76 to 86. Northwest wind around 5 mph in the evening becoming northeast after midnight. .MONDAY...Partly cloudy. Highs 104 to 108. .MONDAY NIGHT...Partly cloudy. Lows 79 to 85. .TUESDAY...Mostly sunny and hot. Highs 107 to 111. .TUESDAY NIGHT...Mostly clear. Lows 81 to 87. .WEDNESDAY...Mostly sunny and hot. Highs 109 to 113. .WEDNESDAY NIGHT...Mostly clear. Lows 81 to 87. .THURSDAY...Mostly sunny and hot. Highs 108 to 112. .THURSDAY NIGHT...Mostly clear. Lows 81 to 87. .FRIDAY...Mostly sunny and hot. Highs 109 to 113. $$ AZZ553-554-221100- Northwest Pinal County-West Pinal County- Including the cities of Casa Grande, Cactus Forest, Florence, and Coolidge 1251 AM MST Sat Aug 22 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST FRIDAY... .TONIGHT...Partly cloudy. Lows 77 to 87. Light wind. .SATURDAY...Partly sunny in the morning then becoming mostly sunny. Hot. Highs 108 to 113. Southwest wind around 5 mph in the morning becoming northwest 10 to 15 mph in the afternoon. .SATURDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Breezy. Lows 77 to 87. Southeast wind 15 to 25 mph in the evening decreasing to around 5 mph after midnight. Chance of rain 20 percent. .SUNDAY...Partly sunny in the morning then becoming mostly sunny. Hot. Highs 106 to 111. South wind around 5 mph in the morning becoming west 5 to 10 mph in the afternoon. .SUNDAY NIGHT...Partly cloudy in the evening then considerable cloudiness. Lows 77 to 87. Southwest wind 5 to 10 mph. .MONDAY...Partly cloudy in the morning then becoming mostly sunny. Highs 103 to 109. .MONDAY NIGHT...Partly cloudy. Lows 79 to 86. .TUESDAY...Mostly sunny and hot. Highs 106 to 112. .TUESDAY NIGHT...Mostly clear. Lows 81 to 88. .WEDNESDAY...Mostly sunny and hot. Highs 108 to 114. .WEDNESDAY NIGHT...Mostly clear. Lows 82 to 89. .THURSDAY...Mostly sunny and hot. Highs 108 to 114. .THURSDAY NIGHT...Mostly clear. Lows 81 to 88. .FRIDAY...Mostly sunny and hot. Highs 108 to 114. $$ AZZ532-221100- Yuma- Including the cities of Yuma and Fortuna Foothills 1251 AM MST Sat Aug 22 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST FRIDAY... .TONIGHT...Clear and warmer. Lows 86 to 87. Light wind. .SATURDAY...Mostly sunny and very hot. Highs near 115. Southwest wind 5 to 10 mph. .SATURDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 86 to 87. South wind 5 to 15 mph. .SUNDAY...Mostly sunny and hot. Highs near 111. South wind 5 to 15 mph. .SUNDAY NIGHT...Partly cloudy. Lows 84 to 86. South wind 5 to 15 mph. .MONDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Highs 107 to 110. .MONDAY NIGHT...Mostly clear. Lows in the mid to upper 80s. .TUESDAY...Sunny and hot. Highs 111 to 114. .TUESDAY NIGHT...Clear. Lows near 90. .WEDNESDAY...Mostly sunny and hot. Highs 113 to 115. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid to upper 80s. .THURSDAY...Mostly sunny and hot. Highs 112 to 114. .THURSDAY NIGHT...Mostly clear. Lows in the mid to upper 80s. .FRIDAY...Mostly sunny and hot. Highs 112 to 114. $$ AZZ562-221100- Globe/Miami- Including the cities of Globe and Miami 1251 AM MST Sat Aug 22 2026 .TONIGHT...Partly cloudy. Lows 68 to 78. Northwest wind around 5 mph. .SATURDAY...Mostly sunny in the morning then becoming partly cloudy. A chance of showers and a slight chance of thunderstorms. Highs 95 to 105. Northeast wind 5 to 10 mph in the morning becoming southwest 10 to 20 mph in the afternoon. Chance of rain 30 percent. .SATURDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Lows 67 to 77. East wind 10 to 15 mph in the evening becoming northeast around 5 mph after midnight. Chance of rain 30 percent. .SUNDAY...Mostly sunny. Highs 92 to 102. East wind around 5 mph in the morning becoming west 5 to 10 mph in the afternoon. .SUNDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 67 to 77. Northwest wind around 5 mph. Chance of rain 10 percent. .MONDAY...Partly sunny. Highs 97 to 103. .MONDAY NIGHT...Partly cloudy. Lows in the mid to upper 70s. .TUESDAY...Mostly sunny. Highs 99 to 105. .TUESDAY NIGHT...Mostly clear. Lows in the mid to upper 70s. .WEDNESDAY...Mostly sunny. Highs 101 to 107. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid to upper 70s. .THURSDAY...Mostly sunny. Highs 101 to 107. .THURSDAY NIGHT...Mostly clear. Lows in the mid to upper 70s. .FRIDAY...Mostly sunny. Highs 101 to 107. $$ AZZ556>558-561-221100- Tonto Basin-Mazatzal Mountains-Pinal/Superstition Mountains- Dripping Springs- Including the cities of Punkin Center, Sunflower, Hayden, and Winkelman 1251 AM MST Sat Aug 22 2026 .TONIGHT...Partly cloudy. Lows 72 to 82. Northeast wind 5 to 10 mph. .SATURDAY...Mostly sunny in the morning, then partly sunny with a slight chance of afternoon showers and thunderstorms. Highs 102 to 107. East wind 5 to 10 mph in the morning becoming southwest 10 to 20 mph in the afternoon. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 72 to 82. Northeast wind 10 to 20 mph in the evening decreasing to 5 to 10 mph after midnight. Chance of rain 20 percent. .SUNDAY...Mostly sunny. Highs 100 to 105. East wind 5 to 10 mph in the morning becoming west in the afternoon. .SUNDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 71 to 81. North wind 5 to 10 mph. Chance of rain 10 percent. .MONDAY...Partly cloudy. Highs 90 to 106. .MONDAY NIGHT...Partly cloudy. Lows 68 to 81. .TUESDAY...Mostly sunny. Highs 92 to 108. .TUESDAY NIGHT...Mostly clear. Lows 70 to 83. .WEDNESDAY...Mostly sunny and hot. Highs 94 to 110. .WEDNESDAY NIGHT...Mostly clear. Lows 70 to 83. .THURSDAY...Mostly sunny. Highs 93 to 109. .THURSDAY NIGHT...Mostly clear. Lows 70 to 83. .FRIDAY...Mostly sunny and hot. Highs 94 to 110. $$ AZZ545-547-552-221100- New River Mesa-Rio Verde/Salt River-Superior- Including the cities of Tortilla Flat and Superior 1251 AM MST Sat Aug 22 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST FRIDAY... .TONIGHT...Mostly clear. Lows 76 to 86. Northeast wind 5 to 10 mph. .SATURDAY...Mostly sunny, otherwise partly cloudy with a slight chance of afternoon showers and thunderstorms. Hot. Highs 107 to 112. East wind 5 to 10 mph in the morning becoming west 10 to 20 mph in the afternoon. Chance of rain 10 percent. .SATURDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows 76 to 86. Northeast wind 10 to 20 mph. Chance of rain 10 percent. .SUNDAY...Partly sunny in the morning then becoming mostly sunny. Highs 104 to 109. Southeast wind 5 to 10 mph in the morning becoming southwest in the afternoon. .SUNDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 74 to 84. North wind around 5 mph. Chance of rain 10 percent. .MONDAY...Partly cloudy. Highs 98 to 108. .MONDAY NIGHT...Partly cloudy. Lows 75 to 84. .TUESDAY...Mostly sunny and hot. Highs 101 to 111. .TUESDAY NIGHT...Mostly clear. Lows 78 to 86. .WEDNESDAY...Mostly sunny and hot. Highs 103 to 113. .WEDNESDAY NIGHT...Clear. Lows 78 to 86. .THURSDAY...Mostly sunny and hot. Highs 102 to 112. .THURSDAY NIGHT...Mostly clear. Lows 78 to 86. .FRIDAY...Mostly sunny and hot. Highs 103 to 113. $$ AZZ560-221100- San Carlos- Including the cities of San Carlos and Peridot 1251 AM MST Sat Aug 22 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST FRIDAY... .TONIGHT...Partly cloudy. Lows 70 to 80. Northwest wind 5 to 10 mph. .SATURDAY...Partly sunny. A slight chance of afternoon showers and thunderstorms. Breezy. Highs 99 to 109. Northeast wind 5 to 10 mph in the morning becoming southwest 15 to 25 mph in the afternoon. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 69 to 79. North wind 10 to 20 mph in the evening becoming northwest 5 to 10 mph after midnight. Chance of rain 20 percent. .SUNDAY...Mostly sunny. Highs 98 to 108. East wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. .SUNDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows 69 to 79. Northwest wind 5 to 10 mph. Chance of rain 20 percent. .MONDAY...Partly sunny. Highs 101 to 107. .MONDAY NIGHT...Partly cloudy. Lows in the mid to upper 70s. .TUESDAY...Mostly sunny and hot. Highs 104 to 110. .TUESDAY NIGHT...Partly cloudy. Lows near 80. .WEDNESDAY...Partly sunny in the morning then becoming sunny. Hot. Highs 105 to 111. .WEDNESDAY NIGHT...Partly cloudy. Lows near 80. .THURSDAY...Mostly sunny and hot. Highs 105 to 111. .THURSDAY NIGHT...Partly cloudy. Lows near 80. .FRIDAY...Partly sunny in the morning then becoming sunny. Hot. Highs 105 to 111. $$ AZZ563-221100- Southeast Gila County- 1251 AM MST Sat Aug 22 2026 .TONIGHT...Partly cloudy. Lows 68 to 78. Northeast wind 5 to 10 mph. .SATURDAY...Partly sunny with a chance of showers and a slight chance of thunderstorms. Highs 92 to 102. Southeast wind 5 to 10 mph in the morning becoming south 10 to 20 mph in the afternoon. Chance of rain 30 percent. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 68 to 78. Northeast wind 10 to 20 mph in the evening decreasing to 5 to 10 mph after midnight. Chance of rain 10 percent. .SUNDAY...Mostly sunny. Highs 91 to 101. Southeast wind 5 to 10 mph in the morning becoming west in the afternoon. .SUNDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 67 to 77. North wind 5 to 10 mph. Chance of rain 10 percent. .MONDAY...Partly sunny. Highs 89 to 101. .MONDAY NIGHT...Partly cloudy. Lows 59 to 77. .TUESDAY...Mostly sunny. Highs 91 to 103. .TUESDAY NIGHT...Partly cloudy. Lows 60 to 78. .WEDNESDAY...Partly sunny. Highs 92 to 104. .WEDNESDAY NIGHT...Partly cloudy. Lows 60 to 79. .THURSDAY...Mostly sunny. Highs 92 to 104. .THURSDAY NIGHT...Partly cloudy. Lows 61 to 79. .FRIDAY...Partly sunny. Highs 93 to 105. $$ AZZ539-559-221100- Gila Bend-Sonoran Desert Natl Monument- Including the cities of Gila Bend, Sentinel, and Kaka 1251 AM MST Sat Aug 22 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST FRIDAY... .TONIGHT...Partly cloudy. Lows 79 to 89. Light wind. .SATURDAY...Partly sunny in the morning then becoming mostly sunny. Very hot. Highs 111 to 116. Southwest wind 5 to 10 mph in the morning becoming northwest 10 to 20 mph in the afternoon. .SATURDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows 79 to 89. Southwest wind 10 to 20 mph in the evening becoming south 5 to 10 mph after midnight. Chance of rain 20 percent. .SUNDAY...Partly sunny in the morning then becoming mostly sunny. Hot. Highs 107 to 112. Southwest wind 5 to 10 mph. .SUNDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows 77 to 87. Southwest wind 5 to 10 mph. Chance of rain 10 percent. .MONDAY...Partly sunny and hot. Highs 102 to 110. .MONDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 81 to 87. .TUESDAY...Mostly sunny and hot. Highs 104 to 114. .TUESDAY NIGHT...Mostly clear. Lows 83 to 89. .WEDNESDAY...Mostly sunny and very hot. Highs 106 to 116. .WEDNESDAY NIGHT...Mostly clear. Lows 83 to 89. .THURSDAY...Partly sunny in the morning then becoming sunny. Very hot. Highs 106 to 115. .THURSDAY NIGHT...Mostly clear. Lows 82 to 88. .FRIDAY...Mostly sunny and very hot. Highs 107 to 115. $$ AZZ534-538-221100- Aguila Valley-Tonopah Desert- Including the cities of Aguila, Gladden, Wickenburg, Arlington, Hassayampa, Tonopah, and Wintersburg 1251 AM MST Sat Aug 22 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST FRIDAY... .TONIGHT...Partly cloudy. Lows 78 to 88. North wind around 5 mph. .SATURDAY...Partly sunny in the morning then becoming mostly sunny. Very hot. Highs 110 to 115. Southeast wind around 5 mph in the morning becoming west 10 to 15 mph in the afternoon. .SATURDAY NIGHT...Partly cloudy. Lows 79 to 89. North wind 10 to 20 mph in the evening becoming east 5 to 10 mph after midnight. .SUNDAY...Partly sunny in the morning then becoming mostly sunny. Hot. Highs 107 to 112. South wind 5 to 10 mph. .SUNDAY NIGHT...Partly cloudy. Lows 77 to 87. Southwest wind 5 to 10 mph. .MONDAY...Partly sunny and hot. Highs 102 to 110. .MONDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 77 to 86. .TUESDAY...Sunny and hot. Highs 105 to 113. .TUESDAY NIGHT...Mostly clear. Lows 79 to 88. .WEDNESDAY...Mostly sunny and very hot. Highs 107 to 115. .WEDNESDAY NIGHT...Mostly clear. Lows 81 to 89. .THURSDAY...Partly sunny in the morning then becoming sunny. Very hot. Highs 107 to 115. .THURSDAY NIGHT...Mostly clear. Lows 80 to 88. .FRIDAY...Mostly sunny and very hot. Highs 107 to 115. $$ AZZ531-533-221100- Kofa-Central La Paz- Including the cities of Palm Canyon, Brenda, Harcuvar, Quartzsite, Vicksburg, Vicksburg Junction, and Salome 1251 AM MST Sat Aug 22 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST FRIDAY... .TONIGHT...Partly cloudy. Lows 79 to 89. Southwest wind around 5 mph. .SATURDAY...Mostly sunny and very hot. Highs 110 to 115. Southeast wind 5 to 10 mph in the morning becoming southwest 10 to 20 mph in the afternoon. .SATURDAY NIGHT...Partly cloudy. Lows 79 to 89. Southwest wind 10 to 15 mph in the evening becoming southeast after midnight. .SUNDAY...Mostly sunny and hot. Highs 108 to 113. South wind 5 to 10 mph. .SUNDAY NIGHT...Partly cloudy. Lows 76 to 86. South wind 5 to 10 mph. .MONDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Highs 101 to 109. .MONDAY NIGHT...Mostly clear. Lows 78 to 86. .TUESDAY...Sunny and hot. Highs 104 to 112. .TUESDAY NIGHT...Clear. Lows 81 to 89. .WEDNESDAY...Mostly sunny and very hot. Highs 107 to 115. .WEDNESDAY NIGHT...Clear. Lows 82 to 88. .THURSDAY...Mostly sunny and hot. Highs 106 to 114. .THURSDAY NIGHT...Mostly clear. Lows 82 to 88. .FRIDAY...Partly sunny in the morning then becoming sunny. Very hot. Highs 107 to 115. $$ AZZ535-536-221100- Southeast Yuma County-Gila River Valley- Including the city of Ligurta 1251 AM MST Sat Aug 22 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST FRIDAY... .TONIGHT...Partly cloudy. Lows 79 to 89. West wind around 5 mph. .SATURDAY...Partly sunny in the morning then becoming mostly sunny. Very hot. Highs 111 to 116. South wind around 5 mph in the morning becoming west 10 to 15 mph in the afternoon. .SATURDAY NIGHT...Partly cloudy. Lows 79 to 89. South wind 5 to 15 mph. .SUNDAY...Mostly sunny and hot. Highs 107 to 112. South wind 5 to 10 mph. .SUNDAY NIGHT...Partly cloudy. Lows 76 to 86. South wind 5 to 10 mph. .MONDAY...Partly sunny and hot. Highs 104 to 110. .MONDAY NIGHT...Partly cloudy. Lows 82 to 87. .TUESDAY...Sunny and hot. Highs 110 to 114. .TUESDAY NIGHT...Mostly clear. Lows 84 to 89. .WEDNESDAY...Mostly sunny and very hot. Highs 110 to 116. .WEDNESDAY NIGHT...Mostly clear. Lows 83 to 88. .THURSDAY...Partly sunny in the morning then becoming sunny. Very hot. Highs 109 to 115. .THURSDAY NIGHT...Mostly clear. Lows 83 to 88. .FRIDAY...Mostly sunny and very hot. Highs 110 to 116. $$ AZZ530-CAZ569-221100- Parker Valley-Palo Verde Valley- Including the cities of Parker, Ehrenberg, Martinez Lake, Blythe, Palo Verde, and Ripley 1251 AM MST Sat Aug 22 2026 /1251 AM PDT Sat Aug 22 2026/ ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST /8 PM PDT/ FRIDAY... .TONIGHT...Partly cloudy. Lows 78 to 88. Southwest wind 5 to 10 mph. .SATURDAY...Mostly sunny and very hot. Highs 112 to 117. West wind around 5 mph in the morning becoming southwest 10 to 15 mph in the afternoon. .SATURDAY NIGHT...Partly cloudy. Lows 78 to 88. Southwest wind 10 to 15 mph. .SUNDAY...Mostly sunny and very hot. Highs 110 to 115. South wind 5 to 15 mph. .SUNDAY NIGHT...Partly cloudy. Lows 77 to 87. South wind 5 to 15 mph. .MONDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Hot. Highs 105 to 111. .MONDAY NIGHT...Mostly clear. Lows 81 to 87. .TUESDAY...Sunny and hot. Highs 108 to 114. .TUESDAY NIGHT...Clear. Lows 82 to 88. .WEDNESDAY...Mostly sunny and very hot. Highs 110 to 116. .WEDNESDAY NIGHT...Mostly clear. Lows 82 to 88. .THURSDAY...Mostly sunny and very hot. Highs 110 to 116. .THURSDAY NIGHT...Mostly clear. Lows 83 to 88. .FRIDAY...Partly sunny in the morning then becoming sunny. Very hot. Highs 110 to 116. $$ CAZ565-570-221100- Imperial County Southeast-Chuckwalla Valley- Including the cities of Winterhaven and Midland 1251 AM PDT Sat Aug 22 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT FRIDAY... .TONIGHT...Clear. Lows 81 to 91. Northwest wind 5 to 10 mph. .SATURDAY...Sunny and very hot. Highs 111 to 116. Northwest wind 5 to 10 mph in the morning becoming southwest 10 to 15 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows 80 to 90. West wind 5 to 15 mph. .SUNDAY...Mostly sunny and hot. Highs 109 to 114. South wind 5 to 15 mph. .SUNDAY NIGHT...Partly cloudy. Lows 79 to 89. South wind 5 to 15 mph. .MONDAY...Partly sunny with a 20 percent chance of showers and thunderstorms. Hot. Highs 103 to 111. .MONDAY NIGHT...Mostly clear. Lows 82 to 89. .TUESDAY...Sunny and hot. Highs 107 to 113. .TUESDAY NIGHT...Clear. Lows 84 to 91. .WEDNESDAY...Mostly sunny and very hot. Highs 108 to 116. .WEDNESDAY NIGHT...Clear. Lows 83 to 91. .THURSDAY...Mostly sunny and very hot. Highs 107 to 115. .THURSDAY NIGHT...Mostly clear. Lows 82 to 90. .FRIDAY...Partly sunny and very hot. Highs 107 to 115. $$ CAZ564-568-221100- Chuckwalla Mountains-Chiriaco Summit- Including the cities of Imperial Hot Mineral Springs and Chiriaco Summit 1251 AM PDT Sat Aug 22 2026 .TONIGHT...Clear. Lows 79 to 89. Northwest wind 5 to 10 mph. .SATURDAY...Sunny and hot. Highs 108 to 113. Northeast wind 5 to 10 mph in the morning becoming southwest 5 to 15 mph in the afternoon. .SATURDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 78 to 88. West wind 5 to 15 mph. .SUNDAY...Mostly sunny and hot. Highs 106 to 111. South wind 5 to 15 mph. .SUNDAY NIGHT...Mostly clear in the evening then becoming partly cloudy. Lows 76 to 86. South wind 5 to 15 mph. .MONDAY...Mostly sunny with a 20 percent chance of showers and thunderstorms. Highs 98 to 108. .MONDAY NIGHT...Mostly clear. Lows 79 to 87. .TUESDAY...Sunny and hot. Highs 100 to 110. .TUESDAY NIGHT...Clear. Lows 81 to 89. .WEDNESDAY...Mostly sunny and hot. Highs 101 to 113. .WEDNESDAY NIGHT...Mostly clear. Lows 81 to 89. .THURSDAY...Mostly sunny and hot. Highs 101 to 113. .THURSDAY NIGHT...Mostly clear. Lows 80 to 88. .FRIDAY...Partly sunny and hot. Highs 101 to 113. $$ CAZ563-221100- Salton Sea- Including the city of Desert Shores 1251 AM PDT Sat Aug 22 2026 .TONIGHT...Clear. Lows 82 to 92. Northwest wind 10 to 15 mph. .SATURDAY...Sunny and hot. Highs 109 to 114. West wind 5 to 10 mph in the morning becoming east 10 to 15 mph in the afternoon. .SATURDAY NIGHT...Mostly clear and breezy. Lows 82 to 92. West wind 10 to 20 mph. Gusts up to 30 mph in the evening. .SUNDAY...Mostly sunny and hot. Highs 107 to 112. Southeast wind 5 to 10 mph. .SUNDAY NIGHT...Mostly clear. Lows 80 to 90. South wind 5 to 10 mph in the evening becoming east after midnight. .MONDAY...Mostly sunny with a 10 percent chance of showers and thunderstorms. Hot. Highs 100 to 110. .MONDAY NIGHT...Clear. Lows 85 to 92. .TUESDAY...Sunny and hot. Highs 102 to 112. .TUESDAY NIGHT...Clear. Lows 87 to 93. .WEDNESDAY...Sunny and hot. Highs 103 to 113. .WEDNESDAY NIGHT...Mostly clear. Lows 87 to 93. .THURSDAY...Mostly sunny and hot. Highs 103 to 113. .THURSDAY NIGHT...Mostly clear. Lows 86 to 92. .FRIDAY...Partly sunny and hot. Highs 103 to 113. $$ CAZ567-221100- Imperial Valley- Including the cities of El Centro, Calexico, Alamorio, and Brawley 1251 AM PDT Sat Aug 22 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT FRIDAY... .TONIGHT...Clear. Lows 78 to 88. West wind 5 to 10 mph. .SATURDAY...Sunny and very hot. Highs 111 to 116. Southwest wind around 5 mph in the morning becoming south 10 to 15 mph in the afternoon. .SATURDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 78 to 88. West wind 5 to 15 mph. .SUNDAY...Mostly sunny and very hot. Highs 110 to 115. South wind 5 to 10 mph. .SUNDAY NIGHT...Mostly clear. Lows 77 to 87. South wind 5 to 10 mph. .MONDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Hot. Highs 108 to 112. .MONDAY NIGHT...Mostly clear. Lows in the mid to upper 80s. .TUESDAY...Sunny and hot. Highs 110 to 114. .TUESDAY NIGHT...Clear. Lows in the mid to upper 80s. .WEDNESDAY...Sunny and very hot. Highs 112 to 116. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid to upper 80s. .THURSDAY...Mostly sunny and very hot. Highs 112 to 116. .THURSDAY NIGHT...Mostly clear. Lows in the mid to upper 80s. .FRIDAY...Partly sunny and very hot. Highs 112 to 116. $$ CAZ566-221100- Imperial County West- Including the cities of Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, and Plaster City 1251 AM PDT Sat Aug 22 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT FRIDAY... .TONIGHT...Clear. Lows 81 to 91. West wind 10 to 15 mph. .SATURDAY...Mostly sunny and very hot. Highs 112 to 117. Southwest wind 5 to 10 mph in the morning becoming southeast 10 to 20 mph in the afternoon. .SATURDAY NIGHT...Mostly clear and breezy. Lows 81 to 91. West wind 15 to 25 mph in the evening decreasing to 10 to 15 mph after midnight. .SUNDAY...Mostly sunny and very hot. Highs 110 to 115. South wind 5 to 10 mph. .SUNDAY NIGHT...Mostly clear. Lows 79 to 89. Southwest wind 10 to 15 mph in the evening becoming west around 5 mph after midnight. .MONDAY...Mostly sunny with a 10 percent chance of showers and thunderstorms. Hot. Highs 108 to 112. .MONDAY NIGHT...Clear. Lows 85 to 90. .TUESDAY...Sunny and hot. Highs 110 to 114. .TUESDAY NIGHT...Clear. Lows near 90. .WEDNESDAY...Sunny and very hot. Highs 111 to 117. .WEDNESDAY NIGHT...Mostly clear. Lows 87 to 92. .THURSDAY...Mostly sunny and very hot. Highs 111 to 117. .THURSDAY NIGHT...Mostly clear. Lows 86 to 91. .FRIDAY...Partly sunny and very hot. Highs 112 to 116. $$ CAZ562-221100- Imperial County Southwest- Including the city of Mountain Spring 1251 AM PDT Sat Aug 22 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT FRIDAY... .TONIGHT...Clear and breezy. Lows 83 to 93. Southwest wind 10 to 20 mph. Gusts up to 30 mph. .SATURDAY...Mostly sunny and very hot. Highs 110 to 115. South wind 10 to 20 mph. .SATURDAY NIGHT...Mostly clear and windy. Lows 83 to 93. Southwest wind 20 to 30 mph. .SUNDAY...Mostly sunny in the morning then becoming partly sunny. Hot. Highs 109 to 114. South wind 10 to 15 mph. .SUNDAY NIGHT...Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows 82 to 92. Southwest wind 10 to 15 mph. Chance of rain 10 percent. .MONDAY...Partly sunny with a 20 percent chance of showers and thunderstorms. Hot. Highs 101 to 111. .MONDAY NIGHT...Clear. Lows 82 to 92. .TUESDAY...Sunny and hot. Highs 103 to 113. .TUESDAY NIGHT...Clear. Lows 83 to 93. .WEDNESDAY...Sunny and very hot. Highs 105 to 115. .WEDNESDAY NIGHT...Mostly clear. Lows 83 to 93. .THURSDAY...Mostly sunny and very hot. Highs 105 to 115. .THURSDAY NIGHT...Mostly clear. Lows 83 to 93. .FRIDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Very hot. Highs 105 to 115. $$ CAZ560-561-221100- Joshua Tree NP West-Joshua Tree NP East- Including the cities of Cottonwood Visitor and Lost Horse-Keys Village 1251 AM PDT Sat Aug 22 2026 .TONIGHT...Clear. Lows 77 to 87. West wind 5 to 10 mph. .SATURDAY...Sunny and hot. Highs 100 to 110. West wind 5 to 10 mph in the morning becoming south 10 to 20 mph in the afternoon. .SATURDAY NIGHT...Mostly clear. Lows 77 to 87. West wind 10 to 20 mph. .SUNDAY...Mostly sunny. Highs 99 to 109. West wind 5 to 10 mph in the morning becoming south 10 to 15 mph in the afternoon. .SUNDAY NIGHT...Mostly clear. Lows 76 to 86. Southwest wind 5 to 15 mph. .MONDAY...Mostly sunny with a 20 percent chance of showers and thunderstorms. Highs 91 to 105. .MONDAY NIGHT...Mostly clear. Lows 69 to 86. .TUESDAY...Sunny. Highs 93 to 107. .TUESDAY NIGHT...Clear. Lows 70 to 87. .WEDNESDAY...Sunny and hot. Highs 94 to 110. .WEDNESDAY NIGHT...Clear. Lows 70 to 87. .THURSDAY...Mostly sunny and hot. Highs 94 to 110. .THURSDAY NIGHT...Mostly clear. Lows 70 to 86. .FRIDAY...Partly sunny and hot. Highs 94 to 110. $$ Visit us on Facebook, Twitter, and at weather.gov/phoenix