Zone Forecast Product
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
655 FPUS55 KPSR 170706 ZFPPSR Zone Forecast Product for Southwest Arizona/Southeast California National Weather Service Phoenix AZ 1206 AM MST Mon Aug 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>544-546-548-550-551-171100- 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 1206 AM MST Mon Aug 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM MST FRIDAY... .TONIGHT...Clear. Lows 81 to 87. Northeast wind around 5 mph. .MONDAY...Sunny and hot. Highs 107 to 111. East wind around 5 mph in the morning becoming west 5 to 10 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 83 to 90. East wind 5 to 10 mph. .TUESDAY...Mostly sunny and hot. Highs 107 to 111. Southeast wind 5 to 10 mph in the morning becoming southwest in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows 84 to 90. Northwest wind around 5 mph in the evening becoming west 5 to 10 mph after midnight. .WEDNESDAY...Sunny and hot. Highs 106 to 111. .WEDNESDAY NIGHT...Partly cloudy. Lows 84 to 91. .THURSDAY...Mostly sunny and hot. Highs 106 to 111. .THURSDAY NIGHT...Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows 83 to 90. .FRIDAY...Partly sunny and hot. Highs 107 to 112. .FRIDAY NIGHT...Partly cloudy with a 10 percent chance of showers and thunderstorms. Lows 82 to 89. .SATURDAY...Partly sunny and hot. Highs 107 to 112. .SATURDAY NIGHT...Partly cloudy with a 10 percent chance of showers and thunderstorms. Lows 83 to 90. .SUNDAY...Partly sunny. Highs 105 to 110. $$ AZZ541-549-555-171100- Cave Creek/New River-Fountain Hills/East Mesa- Apache Junction/Gold Canyon- Including the cities of Scottsdale, Fountain Hills, and Apache Junction 1206 AM MST Mon Aug 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM MST FRIDAY... .TONIGHT...Clear. Lows 74 to 84. Northeast wind 5 to 10 mph. .MONDAY...Sunny and hot. Highs 106 to 111. East wind 5 to 10 mph in the morning becoming southwest around 5 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 76 to 86. East wind 5 to 10 mph. .TUESDAY...Sunny and hot. Highs 105 to 110. Southeast wind 5 to 10 mph in the morning becoming southwest in the afternoon. .TUESDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 77 to 87. Northeast wind around 5 mph. .WEDNESDAY...Sunny. Highs 105 to 109. .WEDNESDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 81 to 87. .THURSDAY...Sunny. Highs 105 to 109. .THURSDAY NIGHT...Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows 80 to 86. .FRIDAY...Partly sunny and hot. Highs 106 to 110. .FRIDAY NIGHT...Partly cloudy with a 10 percent chance of showers and thunderstorms. Lows 79 to 85. .SATURDAY...Partly sunny and hot. Highs 105 to 111. .SATURDAY NIGHT...Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows 80 to 86. .SUNDAY...Partly sunny. Highs 103 to 109. $$ AZZ553-554-171100- Northwest Pinal County-West Pinal County- Including the cities of Casa Grande, Cactus Forest, Florence, and Coolidge 1206 AM MST Mon Aug 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM MST FRIDAY... .TONIGHT...Clear. Lows 75 to 85. Light wind. .MONDAY...Sunny and hot. Highs 107 to 112. East wind around 5 mph in the morning becoming northwest in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 77 to 87. East wind 5 to 10 mph. .TUESDAY...Sunny and hot. Highs 106 to 111. Southeast wind 5 to 10 mph in the morning becoming west around 5 mph in the afternoon. .TUESDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 77 to 87. North wind around 5 mph in the evening becoming south 5 to 10 mph after midnight. .WEDNESDAY...Sunny and hot. Highs 104 to 110. .WEDNESDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 81 to 88. .THURSDAY...Mostly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 104 to 110. .THURSDAY NIGHT...Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows 79 to 87. .FRIDAY...Partly sunny and hot. Highs 105 to 111. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 79 to 86. .SATURDAY...Partly sunny and hot. Highs 105 to 111. .SATURDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 79 to 87. .SUNDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 104 to 110. $$ AZZ532-171100- Yuma- Including the cities of Yuma and Fortuna Foothills 1206 AM MST Mon Aug 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM MST FRIDAY... .TONIGHT...Clear. Lows 84 to 86. Light wind. .MONDAY...Sunny and hot. Highs near 112. Light wind in the morning becoming southwest 5 to 10 mph in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows 86 to 87. Southwest wind 5 to 10 mph in the evening becoming light after midnight. .TUESDAY...Mostly sunny and hot. Highs near 112. South wind 5 to 10 mph. .TUESDAY NIGHT...Mostly clear. Lows 85 to 86. South wind 5 to 15 mph. .WEDNESDAY...Sunny. Highs 108 to 110. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid to upper 80s. .THURSDAY...Sunny and hot. Highs 109 to 112. .THURSDAY NIGHT...Clear in the evening then becoming partly cloudy. Lows in the mid to upper 80s. .FRIDAY...Partly sunny and hot. Highs 110 to 114. .FRIDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows in the mid to upper 80s. .SATURDAY...Partly sunny and hot. Highs 110 to 114. .SATURDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows in the mid to upper 80s. .SUNDAY...Partly sunny and hot. Highs 108 to 111. $$ AZZ562-171100- Globe/Miami- Including the cities of Globe and Miami 1206 AM MST Mon Aug 17 2026 .TONIGHT...Clear. Lows 66 to 76. East wind around 5 mph. .MONDAY...Sunny and warmer. Highs 94 to 104. Southeast wind 5 to 10 mph. .MONDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 67 to 77. Southeast wind 5 to 10 mph. .TUESDAY...Mostly sunny, otherwise partly cloudy with a slight chance of afternoon showers and thunderstorms. Highs 92 to 102. Southeast wind 5 to 10 mph. Chance of rain 10 percent. .TUESDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 68 to 78. Northeast wind around 5 mph. .WEDNESDAY...Mostly sunny. A 10 percent chance of afternoon showers and thunderstorms. Highs 98 to 102. .WEDNESDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows in the mid to upper 70s. .THURSDAY...Mostly sunny in the morning, then partly cloudy with a 30 percent chance of afternoon showers and thunderstorms. Highs 98 to 104. .THURSDAY NIGHT...Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows in the mid to upper 70s. .FRIDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Highs 99 to 103. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the mid 70s. .SATURDAY...Partly sunny in the morning, then sunny with a 10 percent chance of afternoon showers and thunderstorms. Highs 99 to 103. .SATURDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the mid to upper 70s. .SUNDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Highs 97 to 101. $$ AZZ545-547-552-556>558-561-171100- New River Mesa-Rio Verde/Salt River-Superior-Tonto Basin- Mazatzal Mountains-Pinal/Superstition Mountains-Dripping Springs- Including the cities of Tortilla Flat, Superior, Punkin Center, Sunflower, Hayden, and Winkelman 1206 AM MST Mon Aug 17 2026 .TONIGHT...Clear. Lows 72 to 82. Northeast wind 5 to 10 mph. .MONDAY...Sunny. Highs 104 to 109. East wind 5 to 10 mph in the morning becoming southwest in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 75 to 85. East wind 5 to 10 mph. .TUESDAY...Mostly sunny. Highs 104 to 109. East wind 5 to 10 mph in the morning becoming southwest in the afternoon. .TUESDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 75 to 85. Northeast wind 5 to 10 mph. .WEDNESDAY...Sunny. Highs 92 to 108. .WEDNESDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 70 to 85. .THURSDAY...Mostly sunny. A 10 percent chance of afternoon showers and thunderstorms. Highs 93 to 109. .THURSDAY NIGHT...Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows 68 to 84. .FRIDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Highs 93 to 109. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 68 to 82. .SATURDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Highs 93 to 109. .SATURDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 69 to 84. .SUNDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Highs 92 to 108. $$ AZZ560-171100- San Carlos- Including the cities of San Carlos and Peridot 1206 AM MST Mon Aug 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM TUESDAY TO 8 PM MST FRIDAY... .TONIGHT...Clear. Lows 68 to 78. Northeast wind around 5 mph. .MONDAY...Sunny. Highs 97 to 107. East wind 5 to 10 mph. .MONDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 69 to 79. Northeast wind 5 to 10 mph. .TUESDAY...Mostly sunny. Highs 96 to 106. East wind 5 to 10 mph. .TUESDAY NIGHT...Partly cloudy. Lows 69 to 79. Northeast wind around 5 mph. .WEDNESDAY...Mostly sunny. A 10 percent chance of afternoon showers and thunderstorms. Highs 101 to 107. .WEDNESDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows near 80. .THURSDAY...Mostly sunny in the morning, then partly cloudy with a 30 percent chance of afternoon showers and thunderstorms. Highs 102 to 108. .THURSDAY NIGHT...Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows in the mid to upper 70s. .FRIDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Highs 102 to 108. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the mid to upper 70s. .SATURDAY...Partly sunny in the morning then becoming sunny. Highs 102 to 108. .SATURDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the mid to upper 70s. .SUNDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Highs 101 to 107. $$ AZZ563-171100- Southeast Gila County- 1206 AM MST Mon Aug 17 2026 .TONIGHT...Clear. Lows 67 to 77. East wind 5 to 10 mph. .MONDAY...Sunny in the morning, then partly sunny with a slight chance of afternoon showers and thunderstorms. Highs 90 to 100. Southeast wind 5 to 10 mph. Chance of rain 10 percent. .MONDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 68 to 78. East wind 5 to 15 mph. .TUESDAY...Sunny in the morning, then partly sunny with a slight chance of afternoon showers and thunderstorms. Highs 90 to 100. Southeast wind 5 to 10 mph. Chance of rain 10 percent. .TUESDAY NIGHT...Partly cloudy. Lows 68 to 78. Northeast wind 5 to 10 mph. .WEDNESDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Highs 89 to 101. .WEDNESDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 61 to 79. .THURSDAY...Partly cloudy. A 40 percent chance of afternoon showers and thunderstorms. Highs 90 to 102. .THURSDAY NIGHT...Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows 59 to 77. .FRIDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Highs 90 to 102. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows 59 to 77. .SATURDAY...Partly sunny in the morning, then sunny with a 10 percent chance of afternoon showers and thunderstorms. Highs 89 to 101. .SATURDAY NIGHT...Partly cloudy with a 10 percent chance of showers and thunderstorms. Lows 60 to 78. .SUNDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Highs 88 to 100. $$ AZZ539-559-171100- Gila Bend-Sonoran Desert Natl Monument- Including the cities of Gila Bend, Sentinel, and Kaka 1206 AM MST Mon Aug 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM MST FRIDAY... .TONIGHT...Clear. Lows 77 to 87. Light wind. .MONDAY...Sunny and hot. Highs 109 to 114. East wind around 5 mph in the morning becoming northwest in the afternoon. .MONDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 79 to 89. Northwest wind around 5 mph in the evening becoming south after midnight. .TUESDAY...Mostly sunny and hot. Highs 108 to 113. South wind 5 to 10 mph in the morning becoming west around 5 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows 79 to 89. Southwest wind 5 to 15 mph. .WEDNESDAY...Sunny and hot. Highs 104 to 112. .WEDNESDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 81 to 89. .THURSDAY...Mostly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 104 to 112. .THURSDAY NIGHT...Partly cloudy with a 10 percent chance of showers and thunderstorms. Lows 81 to 89. .FRIDAY...Partly sunny and hot. Highs 105 to 113. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 81 to 89. .SATURDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 104 to 112. .SATURDAY NIGHT...Partly cloudy with a 10 percent chance of showers and thunderstorms. Lows 81 to 89. .SUNDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 103 to 111. $$ AZZ534-538-171100- Aguila Valley-Tonopah Desert- Including the cities of Aguila, Gladden, Wickenburg, Arlington, Hassayampa, Tonopah, and Wintersburg 1206 AM MST Mon Aug 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM MST FRIDAY... .TONIGHT...Clear. Lows 76 to 86. North wind 5 to 10 mph. .MONDAY...Sunny and hot. Highs 108 to 113. East wind around 5 mph in the morning becoming southwest in the afternoon. .MONDAY NIGHT...Mostly clear in the evening then becoming partly cloudy. Lows 77 to 87. Northwest wind around 5 mph in the evening becoming northeast after midnight. .TUESDAY...Sunny and hot. Highs 108 to 113. Southeast wind 5 to 10 mph in the morning becoming southwest in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows 78 to 88. Southwest wind around 5 mph in the evening increasing to 10 to 15 mph after midnight. .WEDNESDAY...Sunny and hot. Highs 103 to 111. .WEDNESDAY NIGHT...Partly cloudy. Lows 80 to 88. .THURSDAY...Mostly sunny and hot. Highs 104 to 112. .THURSDAY NIGHT...Partly cloudy with a 10 percent chance of showers and thunderstorms. Lows 80 to 88. .FRIDAY...Partly sunny and hot. Highs 104 to 112. .FRIDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 79 to 87. .SATURDAY...Partly sunny and hot. Highs 104 to 112. .SATURDAY NIGHT...Partly cloudy with a 10 percent chance of showers and thunderstorms. Lows 79 to 87. .SUNDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 102 to 110. $$ AZZ531-533-171100- Kofa-Central La Paz- Including the cities of Palm Canyon, Brenda, Harcuvar, Quartzsite, Vicksburg, Vicksburg Junction, and Salome 1206 AM MST Mon Aug 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM MST FRIDAY... .TONIGHT...Clear. Lows 77 to 87. Southwest wind around 5 mph. .MONDAY...Mostly sunny and hot. Highs 107 to 112. Northeast wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows 78 to 88. West wind around 5 mph in the evening becoming east after midnight. .TUESDAY...Sunny and hot. Highs 108 to 113. Southeast wind around 5 mph in the morning becoming south 5 to 10 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows 78 to 88. South wind 5 to 10 mph. .WEDNESDAY...Sunny and hot. Highs 103 to 111. .WEDNESDAY NIGHT...Partly cloudy. Lows 80 to 87. .THURSDAY...Sunny and hot. Highs 103 to 111. .THURSDAY NIGHT...Clear in the evening, then partly cloudy with a 10 percent chance of showers and thunderstorms after midnight. Lows 80 to 88. .FRIDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 103 to 111. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 79 to 87. .SATURDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 103 to 111. .SATURDAY NIGHT...Partly cloudy with a 10 percent chance of showers and thunderstorms. Lows 79 to 87. .SUNDAY...Partly sunny. A slight chance of showers in the morning, then a slight chance of afternoon showers and thunderstorms. Hot. Highs 102 to 110. Chance of rain 10 percent. $$ AZZ535-536-171100- Southeast Yuma County-Gila River Valley- Including the city of Ligurta 1206 AM MST Mon Aug 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM MST FRIDAY... .TONIGHT...Clear. Lows 76 to 86. Light wind. .MONDAY...Sunny and hot. Highs 109 to 114. Light wind in the morning becoming west 5 to 10 mph in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows 78 to 88. Southwest wind around 5 mph. .TUESDAY...Mostly sunny and hot. Highs 109 to 114. South wind 5 to 10 mph. .TUESDAY NIGHT...Mostly clear. Lows 77 to 87. South wind 5 to 15 mph. .WEDNESDAY...Sunny and hot. Highs 105 to 111. .WEDNESDAY NIGHT...Partly cloudy. Lows 82 to 87. .THURSDAY...Sunny and hot. Highs 107 to 113. .THURSDAY NIGHT...Clear in the evening, then partly cloudy with a 10 percent chance of showers and thunderstorms after midnight. Lows 83 to 88. .FRIDAY...Partly sunny and hot. Highs 109 to 113. .FRIDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 84 to 89. .SATURDAY...Partly sunny and hot. Highs 109 to 113. .SATURDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 83 to 88. .SUNDAY...Partly sunny and hot. Highs 107 to 111. $$ AZZ530-CAZ569-171100- Parker Valley-Palo Verde Valley- Including the cities of Parker, Ehrenberg, Martinez Lake, Blythe, Palo Verde, and Ripley 1206 AM MST Mon Aug 17 2026 /1206 AM PDT Mon Aug 17 2026/ ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM MST /10 AM PDT/ THIS MORNING TO 8 PM MST /8 PM PDT/ FRIDAY... .TONIGHT...Clear. Lows 77 to 87. Southwest wind around 5 mph. .MONDAY...Sunny and hot. Highs 108 to 113. North wind around 5 mph in the morning becoming south 5 to 10 mph in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows 79 to 89. Southwest wind 5 to 10 mph. .TUESDAY...Mostly sunny and hot. Highs 109 to 114. South wind 5 to 10 mph. .TUESDAY NIGHT...Mostly clear. Lows 77 to 87. South wind 5 to 10 mph. .WEDNESDAY...Sunny and hot. Highs 106 to 112. .WEDNESDAY NIGHT...Mostly clear. Lows 81 to 87. .THURSDAY...Sunny and hot. Highs 107 to 113. .THURSDAY NIGHT...Clear in the evening then becoming partly cloudy. Lows 83 to 89. .FRIDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 107 to 113. .FRIDAY NIGHT...Partly cloudy with a 10 percent chance of showers and thunderstorms. Lows 82 to 88. .SATURDAY...Partly sunny and hot. Highs 107 to 113. .SATURDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 82 to 88. .SUNDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 106 to 112. $$ CAZ565-570-171100- Imperial County Southeast-Chuckwalla Valley- Including the cities of Winterhaven and Midland 1206 AM PDT Mon Aug 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM PDT FRIDAY... .TONIGHT...Clear. Lows 79 to 89. Northwest wind around 5 mph. .MONDAY...Sunny and hot. Highs 107 to 112. Northwest wind 5 to 10 mph in the morning becoming south in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows 80 to 90. West wind 5 to 10 mph in the evening becoming northwest after midnight. .TUESDAY...Mostly sunny and hot. Highs 109 to 114. South wind 5 to 10 mph. .TUESDAY NIGHT...Mostly clear in the evening then becoming partly cloudy. Lows 80 to 90. South wind 5 to 10 mph. .WEDNESDAY...Sunny and hot. Highs 104 to 112. .WEDNESDAY NIGHT...Mostly clear. Lows 81 to 89. .THURSDAY...Sunny and hot. Highs 104 to 112. .THURSDAY NIGHT...Clear in the evening then becoming partly cloudy. Lows 82 to 90. .FRIDAY...Partly sunny and hot. Highs 105 to 112. .FRIDAY NIGHT...Partly cloudy. Lows 83 to 90. .SATURDAY...Partly sunny and hot. Highs 105 to 112. .SATURDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 83 to 90. .SUNDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 103 to 111. $$ CAZ564-568-171100- Chuckwalla Mountains-Chiriaco Summit- Including the cities of Imperial Hot Mineral Springs and Chiriaco Summit 1206 AM PDT Mon Aug 17 2026 .TONIGHT...Clear. Lows 77 to 87. Northwest wind around 5 mph. .MONDAY...Sunny and hot. Highs 105 to 110. North wind around 5 mph in the morning becoming south 5 to 10 mph in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows 78 to 88. West wind 5 to 10 mph in the evening becoming northwest around 5 mph after midnight. .TUESDAY...Mostly sunny and hot. Highs 105 to 110. East wind around 5 mph in the morning becoming south 5 to 10 mph in the afternoon. .TUESDAY NIGHT...Partly cloudy. Lows 77 to 87. South wind 5 to 10 mph. .WEDNESDAY...Mostly sunny. Highs 99 to 109. .WEDNESDAY NIGHT...Mostly clear. Lows 78 to 87. .THURSDAY...Sunny. Highs 99 to 109. .THURSDAY NIGHT...Mostly clear. Lows 79 to 88. .FRIDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Highs 99 to 109. .FRIDAY NIGHT...Partly cloudy. Lows 79 to 88. .SATURDAY...Partly sunny. Highs 99 to 109. .SATURDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 78 to 88. .SUNDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Highs 98 to 108. $$ CAZ563-171100- Salton Sea- Including the city of Desert Shores 1206 AM PDT Mon Aug 17 2026 .TONIGHT...Clear. Lows 80 to 90. Northwest wind 10 to 15 mph. .MONDAY...Mostly sunny and hot. Highs 105 to 110. Northwest wind 10 to 15 mph in the morning becoming southeast 5 to 10 mph in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows 81 to 91. Northwest wind 5 to 15 mph. .TUESDAY...Mostly sunny and hot. Highs 106 to 111. Southeast wind 5 to 10 mph. .TUESDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 81 to 91. Southwest wind 5 to 10 mph in the evening becoming northeast after midnight. .WEDNESDAY...Mostly sunny. Highs 101 to 109. .WEDNESDAY NIGHT...Clear. Lows in the mid 80s to lower 90s. .THURSDAY...Sunny. Highs 101 to 109. .THURSDAY NIGHT...Mostly clear. Lows near 90. .FRIDAY...Partly sunny. A 20 percent chance of showers in the afternoon. Highs 101 to 109. .FRIDAY NIGHT...Partly cloudy. Lows 85 to 91. .SATURDAY...Partly sunny. Highs 101 to 109. .SATURDAY NIGHT...Mostly clear. A 10 percent chance of showers in the evening. Lows 86 to 91. .SUNDAY...Partly sunny. Highs 100 to 108. $$ CAZ567-171100- Imperial Valley- Including the cities of El Centro, Calexico, Alamorio, and Brawley 1206 AM PDT Mon Aug 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM PDT FRIDAY... .TONIGHT...Clear. Lows 76 to 86. Northwest wind around 5 mph. .MONDAY...Sunny and hot. Highs 108 to 113. Northwest wind around 5 mph in the morning becoming southwest in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows 77 to 87. Northwest wind 5 to 10 mph. .TUESDAY...Mostly sunny and hot. Highs 109 to 114. South wind around 5 mph. .TUESDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 77 to 87. South wind around 5 mph. .WEDNESDAY...Mostly sunny and hot. Highs 108 to 112. .WEDNESDAY NIGHT...Clear. Lows in the mid to upper 80s. .THURSDAY...Sunny and hot. Highs 109 to 113. .THURSDAY NIGHT...Mostly clear. Lows in the mid to upper 80s. .FRIDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 109 to 113. .FRIDAY NIGHT...Partly cloudy. Lows in the mid to upper 80s. .SATURDAY...Partly sunny and hot. Highs 109 to 113. .SATURDAY NIGHT...Partly cloudy. Lows in the mid to upper 80s. .SUNDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 108 to 112. $$ CAZ566-171100- Imperial County West- Including the cities of Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, and Plaster City 1206 AM PDT Mon Aug 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM PDT FRIDAY... .TONIGHT...Clear. Lows 79 to 89. West wind 5 to 10 mph. .MONDAY...Sunny and hot. Highs 108 to 113. Northwest wind 5 to 10 mph in the morning becoming east in the afternoon. .MONDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 80 to 90. West wind 5 to 15 mph. .TUESDAY...Mostly sunny and hot. Highs 109 to 114. South wind 5 to 10 mph in the morning becoming southeast in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows 80 to 90. Southwest wind 5 to 10 mph. .WEDNESDAY...Mostly sunny and hot. Highs 109 to 113. .WEDNESDAY NIGHT...Clear. Lows 85 to 90. .THURSDAY...Sunny and hot. Highs 109 to 113. .THURSDAY NIGHT...Mostly clear. Lows 86 to 91. .FRIDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Hot. Highs 109 to 113. .FRIDAY NIGHT...Partly cloudy. Lows 85 to 90. .SATURDAY...Mostly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 109 to 113. .SATURDAY NIGHT...Partly cloudy. A 20 percent chance of showers in the evening. Lows 84 to 89. .SUNDAY...Mostly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 108 to 112. $$ CAZ562-171100- Imperial County Southwest- Including the city of Mountain Spring 1206 AM PDT Mon Aug 17 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM PDT FRIDAY... .TONIGHT...Clear. Lows 80 to 90. Southwest wind 10 to 20 mph. .MONDAY...Mostly sunny and hot. Highs 108 to 113. West wind 10 to 15 mph in the morning becoming southeast 5 to 10 mph in the afternoon. .MONDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Breezy. Lows 82 to 92. Southwest wind 10 to 20 mph. Gusts up to 30 mph. .TUESDAY...Mostly sunny and hot. Highs 109 to 114. South wind 5 to 15 mph. .TUESDAY NIGHT...Mostly clear in the evening then becoming partly cloudy. Lows 82 to 92. Southwest wind 10 to 15 mph. .WEDNESDAY...Mostly sunny and hot. Highs 102 to 112. .WEDNESDAY NIGHT...Clear. Lows 83 to 93. .THURSDAY...Sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 102 to 112. .THURSDAY NIGHT...Mostly clear. Lows 83 to 93. .FRIDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Hot. Highs 102 to 112. .FRIDAY NIGHT...Partly cloudy. Lows 81 to 92. .SATURDAY...Mostly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 102 to 112. .SATURDAY NIGHT...Partly cloudy. A 20 percent chance of showers in the evening. Lows 81 to 91. .SUNDAY...Mostly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 101 to 111. $$ CAZ560-561-171100- Joshua Tree NP West-Joshua Tree NP East- Including the cities of Cottonwood Visitor and Lost Horse-Keys Village 1206 AM PDT Mon Aug 17 2026 .TONIGHT...Clear. Lows 75 to 85. West wind 5 to 10 mph. .MONDAY...Mostly sunny. Highs 97 to 107. Northwest wind 5 to 10 mph in the morning becoming south in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows 75 to 85. West wind 5 to 10 mph. .TUESDAY...Mostly sunny. Highs 98 to 108. Northwest wind 5 to 10 mph in the morning becoming south 10 to 15 mph in the afternoon. .TUESDAY NIGHT...Partly cloudy. Lows 76 to 86. Southwest wind 5 to 10 mph. .WEDNESDAY...Mostly sunny. Highs 91 to 107. .WEDNESDAY NIGHT...Clear. Lows 70 to 86. .THURSDAY...Sunny. Highs 91 to 107. .THURSDAY NIGHT...Mostly clear. Lows 70 to 86. .FRIDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Highs 92 to 106. .FRIDAY NIGHT...Partly cloudy. Lows 70 to 86. .SATURDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Highs 91 to 107. .SATURDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 69 to 86. .SUNDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Highs 90 to 106. $$ Visit us on Facebook, Twitter, and at weather.gov/phoenix