Zone Forecast Product
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
222 FPUS55 KPSR 181101 ZFPPSR Zone Forecast Product for Southwest Arizona/Southeast California National Weather Service Phoenix AZ 400 AM MST Mon Aug 18 2025 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 400 AM MST Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH FRIDAY EVENING... .TODAY...Sunny. Highs 103 to 107. West wind 5 to 10 mph. .TONIGHT...Partly cloudy. Lows 79 to 87. Southwest wind 5 to 10 mph. .TUESDAY...Mostly sunny. Highs 104 to 109. South wind around 5 mph in the morning becoming southwest in the afternoon. .TUESDAY NIGHT...Partly cloudy. Lows 82 to 90. Southwest wind 5 to 10 mph in the evening becoming east around 5 mph after midnight. .WEDNESDAY...Mostly sunny and hot. Highs 107 to 111. East wind around 5 mph in the morning becoming south in the afternoon. .WEDNESDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 83 to 90. .THURSDAY...Mostly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 108 to 114. .THURSDAY NIGHT...Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows 84 to 90. .FRIDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 108 to 113. .FRIDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Lows 82 to 88. Chance of rain 30 percent. .SATURDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Highs 104 to 109. .SATURDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 82 to 88. .SUNDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Highs 104 to 109. $$ 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 400 AM MST Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH FRIDAY EVENING... .TODAY...Mostly sunny. Highs 101 to 106. Southwest wind 5 to 10 mph. .TONIGHT...Partly cloudy. Lows 73 to 83. West wind 5 to 10 mph in the evening becoming southeast around 5 mph after midnight. .TUESDAY...Mostly sunny. Highs 102 to 107. Southeast wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. .TUESDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 76 to 86. Southwest wind around 5 mph in the evening becoming east after midnight. Chance of rain 10 percent. .WEDNESDAY...Mostly sunny in the morning, then partly sunny with a slight chance of afternoon showers and thunderstorms. Hot. Highs 105 to 110. East wind 5 to 10 mph in the morning becoming southwest around 5 mph in the afternoon. Chance of rain 10 percent. .WEDNESDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 81 to 87. .THURSDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 107 to 111. .THURSDAY NIGHT...Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows 82 to 87. .FRIDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 106 to 110. .FRIDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Lows 79 to 85. Chance of rain 30 percent. .SATURDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Highs 102 to 108. .SATURDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 80 to 86. .SUNDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Highs 103 to 107. $$ AZZ553-554-182300- Northwest Pinal County-West Pinal County- Including the cities of Casa Grande, Cactus Forest, Florence, and Coolidge 400 AM MST Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH FRIDAY EVENING... .TODAY...Mostly sunny. Highs 101 to 106. West wind 5 to 10 mph. .TONIGHT...Partly cloudy. Lows 74 to 84. West wind 5 to 10 mph in the evening becoming south after midnight. .TUESDAY...Mostly sunny, otherwise partly cloudy with a slight chance of afternoon showers and thunderstorms. Highs 103 to 108. Southwest wind around 5 mph in the morning becoming northwest in the afternoon. Chance of rain 10 percent. .TUESDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows 77 to 87. West wind around 5 mph in the evening becoming southeast after midnight. Chance of rain 10 percent. .WEDNESDAY...Mostly sunny in the morning, then partly sunny with a slight chance of afternoon showers and thunderstorms. Hot. Highs 106 to 111. East wind around 5 mph. Chance of rain 10 percent. .WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows 79 to 87. .THURSDAY...Mostly sunny and hot. Highs 106 to 112. .THURSDAY NIGHT...Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows 79 to 87. .FRIDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 105 to 111. .FRIDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Lows 78 to 86. Chance of rain 30 percent. .SATURDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Highs 102 to 108. .SATURDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 77 to 87. .SUNDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Highs 103 to 109. $$ AZZ532-182300- Yuma- Including the cities of Yuma and Fortuna Foothills 400 AM MST Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH FRIDAY EVENING... .TODAY...Sunny. Highs near 106. South wind 5 to 10 mph. .TONIGHT...Mostly clear and warmer. Lows 78 to 83. South wind 5 to 10 mph. .TUESDAY...Sunny. Highs near 108. Southeast wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. .TUESDAY NIGHT...Partly cloudy. Lows 81 to 86. South wind 5 to 10 mph. .WEDNESDAY...Mostly sunny and hot. Highs near 111. South wind 5 to 10 mph. .WEDNESDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms after midnight. Lows 84 to 89. .THURSDAY...Mostly sunny and hot. Highs 112 to 114. .THURSDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows in the mid to upper 80s. .FRIDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Hot. Highs 111 to 112. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the mid to upper 80s. .SATURDAY...Partly cloudy. A 20 percent chance of afternoon showers and thunderstorms. Highs 107 to 109. .SATURDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the mid to upper 80s. .SUNDAY...Partly sunny with a 20 percent chance of showers and thunderstorms. Highs 108 to 109. $$ AZZ562-182300- Globe/Miami- Including the cities of Globe and Miami 400 AM MST Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH FRIDAY EVENING... .TODAY...Partly sunny. Highs 92 to 102. Northwest wind 5 to 10 mph. .TONIGHT...Partly cloudy. Lows 66 to 76. West wind 5 to 10 mph in the evening becoming south around 5 mph after midnight. .TUESDAY...Mostly sunny in the morning then becoming partly cloudy. A chance of showers and thunderstorms. Highs 93 to 103. Southeast wind around 5 mph in the morning becoming south 5 to 10 mph in the afternoon. Chance of rain 30 percent. .TUESDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening. Lows 67 to 77. East wind 5 to 10 mph. Chance of rain 30 percent. .WEDNESDAY...Mostly sunny in the morning, then partly cloudy with a chance of afternoon showers and thunderstorms. Highs 94 to 104. East wind 5 to 10 mph. Chance of rain 30 percent. .WEDNESDAY NIGHT...Partly cloudy. A 30 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 20 percent chance of afternoon showers and thunderstorms. Highs 99 to 105. .THURSDAY NIGHT...Partly cloudy. A 30 percent chance of showers and thunderstorms in the evening. Lows in the mid to upper 70s. .FRIDAY...Partly cloudy. A 20 percent chance of afternoon showers and thunderstorms. Highs 99 to 105. .FRIDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Lows in the mid 70s. Chance of rain 30 percent. .SATURDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Highs 96 to 102. .SATURDAY NIGHT...Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows in the mid to upper 70s. .SUNDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Highs 96 to 102. $$ AZZ557-558-561-182300- Mazatzal Mountains-Pinal/Superstition Mountains-Dripping Springs- Including the cities of Sunflower, Hayden, and Winkelman 400 AM MST Mon Aug 18 2025 .TODAY...Partly sunny. Highs 90 to 100. West wind 5 to 15 mph. .TONIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 68 to 78. Southwest wind 5 to 15 mph. Chance of rain 10 percent. .TUESDAY...Mostly sunny in the morning, then partly sunny with a slight chance of afternoon showers and thunderstorms. Highs 91 to 101. Southeast wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. Chance of rain 10 percent. .TUESDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Lows 70 to 80. Southeast wind 5 to 10 mph in the evening becoming east after midnight. Chance of rain 30 percent. .WEDNESDAY...Partly cloudy. A slight chance of afternoon showers and thunderstorms. Highs 94 to 104. Southeast wind 5 to 15 mph. Chance of rain 20 percent. .WEDNESDAY NIGHT...Partly cloudy. A 30 percent chance of showers and thunderstorms in the evening. Lows 69 to 80. .THURSDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Highs 91 to 105. .THURSDAY NIGHT...Partly cloudy. A 30 percent chance of showers and thunderstorms in the evening. Lows 70 to 81. .FRIDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Highs 90 to 104. .FRIDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Lows 68 to 79. Chance of rain 30 percent. .SATURDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Highs 88 to 102. .SATURDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 69 to 80. .SUNDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Highs 88 to 102. $$ AZZ545-547-552-556-182300- New River Mesa-Rio Verde/Salt River-Superior-Tonto Basin- Including the cities of Tortilla Flat, Superior, and Punkin Center 400 AM MST Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH FRIDAY EVENING... .TODAY...Mostly sunny. Highs 101 to 106. Southwest wind 5 to 10 mph. .TONIGHT...Partly cloudy. Lows 73 to 83. Southwest wind 5 to 10 mph in the evening becoming southeast around 5 mph after midnight. .TUESDAY...Mostly sunny, otherwise partly cloudy with a slight chance of afternoon showers and thunderstorms. Highs 102 to 107. Southeast wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. Chance of rain 10 percent. .TUESDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 76 to 86. South wind 5 to 10 mph in the evening becoming east after midnight. Chance of rain 10 percent. .WEDNESDAY...Partly sunny. A slight chance of afternoon showers and thunderstorms. Highs 104 to 109. East wind 5 to 10 mph in the morning becoming south in the afternoon. Chance of rain 20 percent. .WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows 76 to 86. .THURSDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Hot. Highs 101 to 111. .THURSDAY NIGHT...Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows 76 to 86. .FRIDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Hot. Highs 100 to 110. .FRIDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Lows 74 to 84. Chance of rain 30 percent. .SATURDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Highs 97 to 107. .SATURDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 75 to 85. .SUNDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Highs 97 to 107. $$ AZZ560-182300- San Carlos- Including the cities of San Carlos and Peridot 400 AM MST Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH FRIDAY EVENING... .TODAY...Partly sunny. A slight chance of afternoon showers and thunderstorms. Highs 93 to 103. West wind 5 to 10 mph. Chance of rain 10 percent. .TONIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 68 to 78. West wind 5 to 10 mph in the evening becoming northeast around 5 mph after midnight. Chance of rain 10 percent. .TUESDAY...Mostly sunny in the morning then becoming partly cloudy. A chance of showers and thunderstorms. Highs 94 to 104. Southeast wind 5 to 10 mph. Chance of rain 40 percent. .TUESDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening. Lows 70 to 80. East wind 5 to 10 mph. Chance of rain 40 percent. .WEDNESDAY...Mostly sunny in the morning, then partly cloudy with a chance of afternoon showers and thunderstorms. Highs 95 to 105. East wind 5 to 10 mph. Chance of rain 30 percent. .WEDNESDAY NIGHT...Partly cloudy. A 30 percent chance of showers and thunderstorms in the evening. Lows in the mid to upper 70s. .THURSDAY...Sunny in the morning, then partly cloudy with a 20 percent chance of afternoon showers and thunderstorms. Highs 102 to 106. .THURSDAY NIGHT...Partly cloudy. A 30 percent chance of showers and thunderstorms in the evening. Lows near 80. .FRIDAY...Mostly sunny in the morning, then partly cloudy with a 20 percent chance of afternoon showers and thunderstorms. Highs 102 to 106. .FRIDAY NIGHT...Partly cloudy. A 30 percent chance of showers and thunderstorms in the evening. Lows in the mid to upper 70s. .SATURDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Highs 101 to 105. .SATURDAY NIGHT...Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows in the upper 70s. .SUNDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Highs 100 to 104. $$ AZZ563-182300- Southeast Gila County- 400 AM MST Mon Aug 18 2025 .TODAY...Partly sunny. A slight chance of afternoon showers and thunderstorms. Highs 89 to 99. North wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. Chance of rain 10 percent. .TONIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 67 to 77. Southwest wind 5 to 10 mph in the evening becoming southeast around 5 mph after midnight. Chance of rain 10 percent. .TUESDAY...Mostly sunny in the morning then considerable cloudiness. A chance of showers and thunderstorms. Highs 90 to 100. South wind 5 to 10 mph. Chance of rain 40 percent. .TUESDAY NIGHT...Considerable cloudiness with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows 69 to 79. East wind 5 to 10 mph. Chance of rain 40 percent. .WEDNESDAY...Mostly sunny in the morning, then partly cloudy with a chance of afternoon showers and thunderstorms. Highs 90 to 100. Southeast wind 5 to 10 mph. Chance of rain 40 percent. .WEDNESDAY NIGHT...Partly cloudy. A 30 percent chance of showers and thunderstorms in the evening. Lows 57 to 78. .THURSDAY...Mostly sunny in the morning, then partly cloudy with a 40 percent chance of afternoon showers and thunderstorms. Highs 89 to 101. .THURSDAY NIGHT...Partly cloudy. A 30 percent chance of showers and thunderstorms in the evening. Lows 58 to 78. .FRIDAY...Partly cloudy. A 40 percent chance of afternoon showers and thunderstorms. Highs 89 to 101. .FRIDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Lows 57 to 77. Chance of rain 30 percent. .SATURDAY...Partly cloudy. A 30 percent chance of afternoon showers and thunderstorms. Highs 87 to 99. .SATURDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Lows 58 to 78. Chance of rain 30 percent. .SUNDAY...Partly cloudy. A 30 percent chance of afternoon showers and thunderstorms. Highs 87 to 99. $$ AZZ539-559-182300- Gila Bend-Sonoran Desert Natl Monument- Including the cities of Gila Bend, Sentinel, and Kaka 400 AM MST Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH FRIDAY EVENING... .TODAY...Sunny. Highs 103 to 108. West wind 5 to 10 mph. .TONIGHT...Partly cloudy. Lows 75 to 85. Southwest wind 5 to 10 mph. .TUESDAY...Mostly sunny. Highs 104 to 109. Southwest wind around 5 mph in the morning becoming northwest in the afternoon. .TUESDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 77 to 87. West wind 5 to 10 mph in the evening becoming south after midnight. Chance of rain 10 percent. .WEDNESDAY...Mostly sunny in the morning, then partly sunny with a slight chance of afternoon showers and thunderstorms. Hot. Highs 108 to 113. Southeast wind around 5 mph in the morning becoming north in the afternoon. Chance of rain 10 percent. .WEDNESDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 83 to 89. .THURSDAY...Mostly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 107 to 114. .THURSDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Lows 82 to 90. Chance of rain 30 percent. .FRIDAY...Mostly sunny in the morning, then partly cloudy with a 20 percent chance of afternoon showers and thunderstorms. Hot. Highs 106 to 113. .FRIDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Lows 80 to 88. Chance of rain 30 percent. .SATURDAY...Partly cloudy. A 20 percent chance of afternoon showers and thunderstorms. Highs 103 to 109. .SATURDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Lows 81 to 88. Chance of rain 30 percent. .SUNDAY...Partly sunny with a 20 percent chance of showers and thunderstorms. Hot. Highs 103 to 110. $$ AZZ534-538-182300- Aguila Valley-Tonopah Desert- Including the cities of Aguila, Gladden, Wickenburg, Arlington, Hassayampa, Tonopah, and Wintersburg 400 AM MST Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH FRIDAY EVENING... .TODAY...Sunny. Highs 103 to 108. Southwest wind 5 to 10 mph. .TONIGHT...Mostly clear in the evening then becoming partly cloudy. Lows 74 to 84. West wind 5 to 10 mph. .TUESDAY...Mostly sunny. Highs 104 to 109. Southwest wind around 5 mph. .TUESDAY NIGHT...Partly cloudy. Lows 76 to 86. Northwest wind around 5 mph. .WEDNESDAY...Mostly sunny and hot. Highs 108 to 113. East wind around 5 mph in the morning becoming south in the afternoon. .WEDNESDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 81 to 89. .THURSDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 106 to 114. .THURSDAY NIGHT...Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows 82 to 88. .FRIDAY...Mostly sunny in the morning, then partly cloudy with a 20 percent chance of afternoon showers and thunderstorms. Hot. Highs 106 to 113. .FRIDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Lows 81 to 88. Chance of rain 30 percent. .SATURDAY...Partly sunny with a 20 percent chance of showers and thunderstorms. Highs 102 to 109. .SATURDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Lows 80 to 88. Chance of rain 30 percent. .SUNDAY...Partly sunny with a 20 percent chance of showers and thunderstorms. Hot. Highs 102 to 110. $$ AZZ531-533-182300- Kofa-Central La Paz- Including the cities of Palm Canyon, Brenda, Harcuvar, Quartzsite, Vicksburg, Vicksburg Junction, and Salome 400 AM MST Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH FRIDAY EVENING... .TODAY...Sunny. Highs 103 to 108. Southeast wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. .TONIGHT...Mostly clear. Lows 73 to 83. Southwest wind 5 to 10 mph. .TUESDAY...Sunny and hot. Highs 105 to 110. South wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. .TUESDAY NIGHT...Partly cloudy. Lows 77 to 87. Southwest wind 5 to 10 mph. .WEDNESDAY...Mostly sunny and hot. Highs 108 to 113. Southeast wind around 5 mph in the morning becoming southwest in the afternoon. .WEDNESDAY NIGHT...Partly cloudy with a 10 percent chance of showers and thunderstorms. Lows 81 to 89. .THURSDAY...Partly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 106 to 114. .THURSDAY NIGHT...Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows 82 to 89. .FRIDAY...Partly cloudy. A 30 percent chance of afternoon showers and thunderstorms. Hot. Highs 106 to 114. .FRIDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Lows 80 to 88. Chance of rain 30 percent. .SATURDAY...Partly cloudy with a 20 percent chance of showers and thunderstorms. Hot. Highs 102 to 110. .SATURDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Lows 80 to 87. Chance of rain 30 percent. .SUNDAY...Partly cloudy with a 20 percent chance of showers and thunderstorms. Hot. Highs 102 to 110. $$ AZZ535-536-182300- Southeast Yuma County-Gila River Valley- Including the city of Ligurta 400 AM MST Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH FRIDAY EVENING... .TODAY...Sunny. Highs 103 to 108. Southeast wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. .TONIGHT...Mostly clear. Lows 74 to 84. Southwest wind 5 to 10 mph. .TUESDAY...Mostly sunny. Highs 104 to 109. South wind around 5 mph in the morning becoming west 5 to 10 mph in the afternoon. .TUESDAY NIGHT...Partly cloudy. Lows 76 to 86. Southwest wind 5 to 10 mph. .WEDNESDAY...Mostly sunny, otherwise partly cloudy with a slight chance of afternoon showers and thunderstorms. Hot. Highs 107 to 112. South wind around 5 mph in the morning becoming west in the afternoon. Chance of rain 10 percent. .WEDNESDAY NIGHT...Partly cloudy with a 10 percent chance of showers and thunderstorms. Lows 82 to 89. .THURSDAY...Mostly sunny and hot. Highs 109 to 114. .THURSDAY NIGHT...Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows 82 to 88. .FRIDAY...Mostly sunny in the morning, then partly cloudy with a 20 percent chance of afternoon showers and thunderstorms. Hot. Highs 107 to 113. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 82 to 88. .SATURDAY...Partly cloudy. A 20 percent chance of afternoon showers and thunderstorms. Highs 104 to 109. .SATURDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 81 to 87. .SUNDAY...Partly sunny with a 20 percent chance of showers and thunderstorms. Hot. Highs 104 to 110. $$ AZZ530-CAZ569-182300- Parker Valley-Palo Verde Valley- Including the cities of Parker, Ehrenberg, Martinez Lake, Blythe, Palo Verde, and Ripley 400 AM MST Mon Aug 18 2025 /400 AM PDT Mon Aug 18 2025/ ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH FRIDAY EVENING... .TODAY...Sunny. Highs 104 to 109. South wind 5 to 10 mph. .TONIGHT...Mostly clear. Areas of smoke in the evening. Warmer. Lows 73 to 83. South wind 5 to 10 mph. .TUESDAY...Sunny and hot. Highs 106 to 111. South wind 5 to 10 mph. .TUESDAY NIGHT...Mostly clear in the evening then becoming partly cloudy. Lows 75 to 85. Southwest wind 5 to 10 mph. .WEDNESDAY...Mostly sunny and hot. Highs 108 to 113. Southwest wind 5 to 10 mph. .WEDNESDAY NIGHT...Partly cloudy. Lows 80 to 88. .THURSDAY...Mostly sunny and very hot. Highs 110 to 116. .THURSDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 82 to 88. .FRIDAY...Mostly sunny in the morning, then partly cloudy with a 20 percent chance of afternoon showers and thunderstorms. Very hot. Highs 109 to 115. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 82 to 88. .SATURDAY...Partly cloudy with a 20 percent chance of showers and thunderstorms. Hot. Highs 105 to 111. .SATURDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 80 to 87. .SUNDAY...Partly cloudy with a 20 percent chance of showers and thunderstorms. Hot. Highs 105 to 111. $$ 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 400 AM PDT Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH FRIDAY EVENING... .TODAY...Sunny. Highs 104 to 109. East wind around 5 mph in the morning becoming south 5 to 10 mph in the afternoon. .TONIGHT...Clear. Lows 73 to 83. South wind 5 to 10 mph. .TUESDAY...Sunny and hot. Highs 106 to 111. South wind 5 to 10 mph. .TUESDAY NIGHT...Partly cloudy. Lows 77 to 87. Southwest wind 5 to 10 mph in the evening becoming west after midnight. .WEDNESDAY...Mostly sunny and hot. Highs 108 to 113. North wind 5 to 10 mph in the morning becoming south in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 80 to 89. .THURSDAY...Mostly sunny. A 10 percent chance of afternoon showers and thunderstorms. Very hot. Highs 103 to 115. .THURSDAY NIGHT...Partly cloudy. Lows 81 to 90. .FRIDAY...Mostly sunny in the morning, then partly cloudy with a 20 percent chance of afternoon showers and thunderstorms. Very hot. Highs 103 to 115. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 81 to 91. .SATURDAY...Partly cloudy. A slight chance of showers and thunderstorms in the morning, then a chance of afternoon showers and thunderstorms. Hot. Highs 98 to 110. Chance of rain 40 percent. .SATURDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 79 to 89. .SUNDAY...Partly cloudy. A slight chance of showers and thunderstorms in the morning, then a chance of afternoon showers and thunderstorms. Hot. Highs 99 to 111. Chance of rain 30 percent. $$ CAZ563-567-182300- Salton Sea-Imperial Valley- Including the cities of Desert Shores, El Centro, Calexico, Alamorio, and Brawley 400 AM PDT Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH FRIDAY EVENING... .TODAY...Sunny and hot. Highs 105 to 110. Southeast wind 5 to 10 mph. .TONIGHT...Clear. Lows 74 to 84. South wind 5 to 10 mph. .TUESDAY...Sunny and hot. Highs 107 to 112. South wind around 5 mph. .TUESDAY NIGHT...Mostly clear in the evening then becoming partly cloudy. Lows 77 to 87. West wind 5 to 10 mph. .WEDNESDAY...Mostly sunny and hot. Highs 109 to 114. Southwest wind 5 to 10 mph in the morning becoming south around 5 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 81 to 90. .THURSDAY...Mostly sunny. A 10 percent chance of afternoon showers and thunderstorms. Very hot. Highs 106 to 116. .THURSDAY NIGHT...Mostly clear. Lows 82 to 91. .FRIDAY...Mostly sunny in the morning, then partly cloudy with a 20 percent chance of afternoon showers and thunderstorms. Very hot. Highs 106 to 116. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 83 to 90. .SATURDAY...Partly cloudy. A 20 percent chance of afternoon showers and thunderstorms. Hot. Highs 102 to 112. .SATURDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 80 to 88. .SUNDAY...Partly sunny with a 20 percent chance of showers and thunderstorms. Hot. Highs 103 to 113. $$ CAZ566-182300- Imperial County West- Including the cities of Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, and Plaster City 400 AM PDT Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH FRIDAY EVENING... .TODAY...Sunny. Highs 104 to 109. East wind 5 to 10 mph. .TONIGHT...Clear. Lows 74 to 84. Southwest wind 5 to 10 mph. .TUESDAY...Sunny and hot. Highs 106 to 111. Southwest wind 5 to 10 mph in the morning becoming southeast around 5 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows 77 to 87. West wind 5 to 10 mph. .WEDNESDAY...Mostly sunny and hot. Highs 108 to 113. Southwest wind around 5 mph in the morning becoming southeast 5 to 10 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 82 to 90. .THURSDAY...Mostly sunny. A 10 percent chance of afternoon showers and thunderstorms. Very hot. Highs 111 to 115. .THURSDAY NIGHT...Mostly clear. Lows 84 to 92. .FRIDAY...Mostly sunny in the morning, then partly cloudy with a 20 percent chance of afternoon showers and thunderstorms. Very hot. Highs 112 to 116. .FRIDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 84 to 91. .SATURDAY...Partly cloudy. A 30 percent chance of afternoon showers and thunderstorms. Hot. Highs 108 to 110. .SATURDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 83 to 90. .SUNDAY...Partly cloudy. A 30 percent chance of afternoon showers and thunderstorms. Hot. Highs 107 to 111. $$ CAZ562-182300- Imperial County Southwest- Including the city of Mountain Spring 400 AM PDT Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH FRIDAY EVENING... .TODAY...Sunny. Highs 103 to 108. East wind 5 to 15 mph. .TONIGHT...Clear and breezy. Lows 78 to 88. Southwest wind 10 to 20 mph. Gusts up to 30 mph after midnight. .TUESDAY...Sunny and hot. Highs 106 to 111. Southwest wind 10 to 15 mph in the morning becoming southeast 5 to 10 mph in the afternoon. .TUESDAY NIGHT...Mostly clear and breezy. Lows 81 to 91. Southwest wind 10 to 20 mph. Gusts up to 30 mph. .WEDNESDAY...Mostly sunny and hot. Highs 108 to 113. Southwest wind 10 to 15 mph in the morning becoming east 5 to 10 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 83 to 95. .THURSDAY...Mostly sunny. A 10 percent chance of afternoon showers and thunderstorms. Very hot. Highs 105 to 115. .THURSDAY NIGHT...Mostly clear. Lows 84 to 96. .FRIDAY...Mostly sunny in the morning, then partly cloudy with a 30 percent chance of afternoon showers and thunderstorms. Very hot. Highs 106 to 116. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows 83 to 94. .SATURDAY...Partly cloudy. A 30 percent chance of afternoon showers and thunderstorms. Hot. Highs 101 to 111. .SATURDAY NIGHT...Partly cloudy with a 10 percent chance of showers and thunderstorms in the evening, then clear after midnight. Lows 82 to 94. .SUNDAY...Mostly sunny in the morning, then partly cloudy with a 30 percent chance of afternoon showers and thunderstorms. Hot. Highs 101 to 111. $$ CAZ560-561-182300- Joshua Tree NP West-Joshua Tree NP East- Including the cities of Cottonwood Visitor and Lost Horse-Keys Village 400 AM PDT Mon Aug 18 2025 ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH FRIDAY EVENING... .TODAY...Sunny. Highs 93 to 103. South wind 5 to 10 mph. .TONIGHT...Clear and warmer. Lows 71 to 81. Southwest wind 5 to 10 mph. .TUESDAY...Sunny. Highs 95 to 105. Northwest wind around 5 mph in the morning becoming south 5 to 10 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows 73 to 83. West wind 5 to 10 mph. .WEDNESDAY...Sunny. Highs 98 to 108. North wind 5 to 10 mph in the morning becoming south in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 71 to 85. .THURSDAY...Partly sunny. A 20 percent chance of afternoon showers and thunderstorms. Hot. Highs 94 to 110. .THURSDAY NIGHT...Mostly clear. Lows 73 to 87. .FRIDAY...Mostly sunny in the morning, then partly cloudy with a 40 percent chance of afternoon showers and thunderstorms. Hot. Highs 94 to 110. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 71 to 87. .SATURDAY...Partly sunny with a slight chance of showers and thunderstorms in the morning, then considerable cloudiness with a chance of afternoon showers and thunderstorms. Not as warm. Highs 89 to 105. Chance of rain 50 percent. Rainfall less than a tenth of an inch, except locally higher in thunderstorms. .SATURDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Lows 70 to 86. Chance of rain 30 percent. .SUNDAY...Partly sunny with a slight chance of showers and thunderstorms in the morning, then considerable cloudiness with a chance of afternoon showers and thunderstorms. Highs 89 to 105. Chance of rain 50 percent. Rainfall less than a tenth of an inch, except locally higher in thunderstorms. $$ Visit us on Facebook, Twitter, and at weather.gov/phoenix