Zone Forecast Product
Issued by NWS Phoenix, AZ
Issued by NWS Phoenix, AZ
050 FPUS55 KPSR 211100 ZFPPSR Zone Forecast Product for Southwest Arizona/Southeast California National Weather Service Phoenix AZ 400 AM MST Tue Jul 21 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>544-546-548-550-551-212300- 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 Tue Jul 21 2026 ...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH MONDAY EVENING... .TODAY...Partly cloudy. Highs 97 to 102. South wind around 5 mph in the morning becoming southwest in the afternoon. .TONIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows 78 to 87. East wind around 5 mph. Chance of rain 20 percent. .WEDNESDAY...Mostly sunny. Highs 101 to 106. East wind around 5 mph in the morning becoming light in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 82 to 90. Northeast wind around 5 mph. .THURSDAY...Sunny and hot. Highs 107 to 111. East wind around 5 mph in the morning becoming south in the afternoon. .THURSDAY NIGHT...Partly cloudy. Lows 85 to 93. .FRIDAY...Mostly sunny and hot. Highs 108 to 114. .FRIDAY NIGHT...Partly cloudy. Lows 84 to 92. .SATURDAY...Mostly sunny and hot. Highs 109 to 115. .SATURDAY NIGHT...Partly cloudy. Lows 84 to 92. .SUNDAY...Partly cloudy and hot. Highs 109 to 115. .SUNDAY NIGHT...Considerable cloudiness. Lows 83 to 91. .MONDAY...Considerable cloudiness in the morning then becoming partly sunny. Hot. Highs 107 to 113. $$ AZZ541-549-555-212300- Cave Creek/New River-Fountain Hills/East Mesa- Apache Junction/Gold Canyon- Including the cities of Scottsdale, Fountain Hills, and Apache Junction 400 AM MST Tue Jul 21 2026 ...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH MONDAY EVENING... .TODAY...Partly sunny with a slight chance of showers and thunderstorms. Highs 95 to 100. South wind around 5 mph in the morning becoming west 5 to 10 mph in the afternoon. Chance of rain 10 percent. .TONIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows 72 to 82. Northeast wind around 5 mph. Chance of rain 20 percent. .WEDNESDAY...Mostly sunny. Highs 99 to 104. East wind around 5 mph in the morning becoming west in the afternoon. .WEDNESDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 75 to 85. North wind around 5 mph in the evening becoming northeast 5 to 10 mph after midnight. .THURSDAY...Sunny and hot. Highs 105 to 110. East wind 5 to 10 mph in the morning becoming southwest around 5 mph in the afternoon. .THURSDAY NIGHT...Mostly clear. Lows 83 to 88. .FRIDAY...Mostly sunny and hot. Highs 105 to 111. .FRIDAY NIGHT...Partly cloudy. Lows 83 to 88. .SATURDAY...Mostly sunny and hot. Highs 107 to 111. .SATURDAY NIGHT...Partly cloudy. A 10 percent chance of thunderstorms in the evening. Lows 83 to 88. .SUNDAY...Partly cloudy and hot. Highs 107 to 111. .SUNDAY NIGHT...Considerable cloudiness. A 10 percent chance of thunderstorms in the evening. Lows 82 to 87. .MONDAY...Partly cloudy. Highs 105 to 109. $$ AZZ553-554-212300- Northwest Pinal County-West Pinal County- Including the cities of Casa Grande, Cactus Forest, Florence, and Coolidge 400 AM MST Tue Jul 21 2026 ...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH MONDAY EVENING... .TODAY...Partly sunny with a slight chance of showers and thunderstorms. Not as warm. Highs 96 to 101. South wind 5 to 10 mph in the morning becoming west around 5 mph in the afternoon. Chance of rain 10 percent. .TONIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows 73 to 83. South wind around 5 mph in the evening becoming east after midnight. Chance of rain 20 percent. .WEDNESDAY...Mostly sunny. Highs 100 to 105. Light wind in the morning becoming northwest around 5 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 76 to 86. Northeast wind around 5 mph in the evening becoming southeast after midnight. .THURSDAY...Sunny and hot. Highs 106 to 111. East wind around 5 mph in the morning becoming north in the afternoon. .THURSDAY NIGHT...Partly cloudy. Lows 81 to 89. .FRIDAY...Mostly sunny and hot. Highs 106 to 112. .FRIDAY NIGHT...Partly cloudy. A 10 percent chance of thunderstorms in the evening. Lows 80 to 88. .SATURDAY...Mostly sunny and hot. Highs 107 to 113. .SATURDAY NIGHT...Partly cloudy. A 10 percent chance of thunderstorms in the evening. Lows 81 to 89. .SUNDAY...Partly cloudy and hot. Highs 107 to 113. .SUNDAY NIGHT...Partly cloudy with a 10 percent chance of thunderstorms. Lows 79 to 88. .MONDAY...Partly cloudy and hot. Highs 105 to 111. $$ AZZ532-212300- Yuma- Including the cities of Yuma and Fortuna Foothills 400 AM MST Tue Jul 21 2026 ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH MONDAY EVENING... .TODAY...Mostly sunny. Highs near 106. South wind 5 to 10 mph. .TONIGHT...Mostly clear. Lows 83 to 86. South wind 5 to 15 mph. .WEDNESDAY...Partly sunny in the morning then becoming sunny. Highs near 109. Southwest wind around 5 mph. .WEDNESDAY NIGHT...Mostly clear. Lows 87 to 90. South wind 5 to 10 mph. .THURSDAY...Sunny and hot. Highs near 114. Light wind in the morning becoming south 5 to 10 mph in the afternoon. .THURSDAY NIGHT...Mostly clear. Lows near 90. .FRIDAY...Mostly sunny and hot. Highs 112 to 114. .FRIDAY NIGHT...Mostly clear. Lows near 90. .SATURDAY...Mostly sunny and very hot. Highs 112 to 116. .SATURDAY NIGHT...Partly cloudy. Lows near 90. .SUNDAY...Partly sunny and very hot. Highs 113 to 115. .SUNDAY NIGHT...Partly cloudy. Lows near 90. .MONDAY...Partly cloudy and hot. Highs 108 to 112. $$ AZZ562-212300- Globe/Miami- Including the cities of Globe and Miami 400 AM MST Tue Jul 21 2026 ...FLOOD WATCH IN EFFECT FROM 11 AM MST THIS MORNING THROUGH THIS EVENING... .TODAY...Partly cloudy. A slight chance of showers and thunderstorms in the morning, then a chance of afternoon showers and thunderstorms. Heavy rainfall possible. Highs 82 to 92. West wind 5 to 10 mph. Chance of rain 50 percent. Rainfall less than a quarter of an inch, except locally higher in thunderstorms. .TONIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening, then a chance of showers and a slight chance of thunderstorms after midnight. Heavy rainfall in the evening. Lows 63 to 73. East wind around 5 mph in the evening becoming light after midnight. Chance of rain 30 percent. .WEDNESDAY...Mostly sunny in the morning, then partly sunny with a chance of afternoon showers and thunderstorms. Highs 85 to 95. Light wind. Chance of rain 30 percent. .WEDNESDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 66 to 76. Light wind in the evening becoming northeast around 5 mph after midnight. Chance of rain 10 percent. .THURSDAY...Mostly sunny and warmer. Highs 91 to 101. East wind around 5 mph in the morning becoming south in the afternoon. .THURSDAY NIGHT...Partly cloudy. Lows near 80. .FRIDAY...Mostly sunny. Highs 99 to 103. .FRIDAY NIGHT...Partly cloudy. Lows near 80. .SATURDAY...Partly sunny. A 10 percent chance of thunderstorms in the afternoon. Highs 100 to 104. .SATURDAY NIGHT...Considerable cloudiness. A 10 percent chance of thunderstorms in the evening. Lows near 80. .SUNDAY...Partly cloudy. A 20 percent chance of thunderstorms in the afternoon. Highs 100 to 104. .SUNDAY NIGHT...Mostly cloudy. A 20 percent chance of thunderstorms in the evening. Lows in the mid to upper 70s. .MONDAY...Partly cloudy. Highs 99 to 103. $$ AZZ557-558-561-212300- Mazatzal Mountains-Pinal/Superstition Mountains-Dripping Springs- Including the cities of Sunflower, Hayden, and Winkelman 400 AM MST Tue Jul 21 2026 .TODAY...Partly cloudy with a slight chance of showers and thunderstorms. Highs 82 to 92. West wind 5 to 10 mph. Chance of rain 20 percent. .TONIGHT...Partly cloudy with a chance of showers and a slight chance of thunderstorms. Lows 66 to 76. East wind 5 to 10 mph. Chance of rain 30 percent. .WEDNESDAY...Mostly sunny with a slight chance of showers in the morning, then partly sunny with a slight chance of afternoon showers and thunderstorms. Highs 86 to 96. East wind around 5 mph in the morning becoming west in the afternoon. Chance of rain 20 percent. .WEDNESDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 69 to 79. North wind 5 to 10 mph in the evening becoming northeast after midnight. Chance of rain 10 percent. .THURSDAY...Mostly sunny and warmer. Highs 92 to 102. East wind 5 to 10 mph in the morning becoming south around 5 mph in the afternoon. .THURSDAY NIGHT...Partly cloudy. Lows 71 to 82. .FRIDAY...Mostly sunny. Highs 90 to 104. .FRIDAY NIGHT...Partly cloudy. Lows 71 to 82. .SATURDAY...Partly sunny. A 10 percent chance of thunderstorms in the afternoon. Highs 92 to 104. .SATURDAY NIGHT...Partly cloudy with a 10 percent chance of thunderstorms. Lows 72 to 82. .SUNDAY...Partly cloudy. A 10 percent chance of thunderstorms in the afternoon. Highs 92 to 104. .SUNDAY NIGHT...Considerable cloudiness with a 20 percent chance of thunderstorms. Lows 71 to 81. .MONDAY...Partly cloudy. Highs 90 to 102. $$ AZZ545-547-552-212300- New River Mesa-Rio Verde/Salt River-Superior- Including the cities of Tortilla Flat and Superior 400 AM MST Tue Jul 21 2026 ...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH MONDAY EVENING... .TODAY...Partly sunny with a slight chance of showers and thunderstorms. Not as warm. Highs 94 to 99. Southwest wind 5 to 10 mph. Chance of rain 10 percent. .TONIGHT...Partly cloudy with a chance of showers and a slight chance of thunderstorms. Lows 71 to 81. Northeast wind around 5 mph. Chance of rain 30 percent. .WEDNESDAY...Mostly sunny, otherwise partly cloudy with a slight chance of afternoon showers and thunderstorms. Highs 98 to 103. East wind around 5 mph in the morning becoming west in the afternoon. Chance of rain 10 percent. .WEDNESDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 74 to 84. Northwest wind around 5 mph in the evening becoming northeast 5 to 10 mph after midnight. .THURSDAY...Sunny and warmer. Highs 104 to 109. East wind 5 to 10 mph in the morning becoming southwest around 5 mph in the afternoon. .THURSDAY NIGHT...Mostly clear. Lows 77 to 87. .FRIDAY...Sunny and hot. Highs 98 to 110. .FRIDAY NIGHT...Partly cloudy. Lows 77 to 88. .SATURDAY...Mostly sunny and hot. Highs 100 to 112. .SATURDAY NIGHT...Partly cloudy. A 10 percent chance of thunderstorms in the evening. Lows 77 to 88. .SUNDAY...Partly cloudy and hot. Highs 100 to 112. .SUNDAY NIGHT...Considerable cloudiness. A 10 percent chance of thunderstorms in the evening. Lows 77 to 87. .MONDAY...Partly cloudy and hot. Highs 98 to 110. $$ AZZ556-212300- Tonto Basin- Including the city of Punkin Center 400 AM MST Tue Jul 21 2026 ...FLOOD WATCH IN EFFECT FROM 11 AM MST THIS MORNING THROUGH THIS EVENING... .TODAY...Partly cloudy. A slight chance of showers and thunderstorms in the morning, then a chance of afternoon showers and thunderstorms. Heavy rainfall possible. Not as warm. Highs 90 to 95. Southwest wind 5 to 10 mph. Chance of rain 40 percent. .TONIGHT...Considerable cloudiness with a chance of showers and thunderstorms in the evening, then partly cloudy with a chance of showers and a slight chance of thunderstorms after midnight. Heavy rainfall in the evening. Warmer. Lows 69 to 79. Southwest wind around 5 mph in the evening becoming light after midnight. Chance of rain 50 percent. Rainfall less than a quarter of an inch, except locally higher in thunderstorms. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 94 to 99. Light wind in the morning becoming west around 5 mph in the afternoon. Chance of rain 10 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows 72 to 82. Northwest wind around 5 mph in the evening becoming northeast after midnight. .THURSDAY...Sunny and warmer. Highs 100 to 105. East wind around 5 mph in the morning becoming southwest in the afternoon. .THURSDAY NIGHT...Partly cloudy. Lows 78 to 85. .FRIDAY...Mostly sunny. Highs 100 to 108. .FRIDAY NIGHT...Partly cloudy. Lows 79 to 86. .SATURDAY...Partly sunny in the morning then becoming sunny. Highs 101 to 109. .SATURDAY NIGHT...Partly cloudy. A 10 percent chance of thunderstorms in the evening. Lows 79 to 86. .SUNDAY...Partly cloudy. A 10 percent chance of thunderstorms in the afternoon. Highs 103 to 109. .SUNDAY NIGHT...Considerable cloudiness. A 20 percent chance of thunderstorms in the evening. Lows 78 to 85. .MONDAY...Partly cloudy. A 10 percent chance of afternoon showers and thunderstorms. Highs 101 to 107. $$ AZZ560-563-212300- San Carlos-Southeast Gila County- Including the cities of San Carlos and Peridot 400 AM MST Tue Jul 21 2026 ...FLOOD WATCH IN EFFECT FROM 11 AM MST THIS MORNING THROUGH THIS EVENING... .TODAY...Partly sunny with a slight chance of showers and thunderstorms in the morning, then considerable cloudiness with showers likely and a chance of thunderstorms in the afternoon. Heavy rainfall possible. Highs 82 to 92. West wind 5 to 10 mph. Chance of rain 60 percent. Rainfall up to a half of an inch possible, except locally higher in thunderstorms. .TONIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Heavy rainfall in the evening. Lows 65 to 75. East wind around 5 mph in the evening becoming light after midnight. Chance of rain 30 percent. .WEDNESDAY...Mostly sunny in the morning, then partly sunny with a chance of afternoon showers and thunderstorms. Highs 85 to 95. Southeast wind around 5 mph in the morning becoming southwest in the afternoon. Chance of rain 30 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows 68 to 78. Northeast wind 5 to 10 mph. .THURSDAY...Mostly sunny, otherwise partly cloudy with a slight chance of afternoon showers and thunderstorms. Warmer. Highs 91 to 101. East wind around 5 mph in the morning becoming south in the afternoon. Chance of rain 10 percent. .THURSDAY NIGHT...Partly cloudy. Lows 59 to 81. .FRIDAY...Mostly sunny. A 10 percent chance of afternoon showers and thunderstorms. Highs 89 to 105. .FRIDAY NIGHT...Partly cloudy. Lows 60 to 81. .SATURDAY...Partly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 90 to 106. .SATURDAY NIGHT...Considerable cloudiness. A 10 percent chance of thunderstorms in the evening. Lows 60 to 81. .SUNDAY...Partly cloudy. A 40 percent chance of thunderstorms in the afternoon. Highs 90 to 106. .SUNDAY NIGHT...Considerable cloudiness with a 20 percent chance of thunderstorms. Lows 59 to 80. .MONDAY...Partly cloudy. A 10 percent chance of afternoon showers and thunderstorms. Highs 90 to 104. $$ AZZ539-559-212300- Gila Bend-Sonoran Desert Natl Monument- Including the cities of Gila Bend, Sentinel, and Kaka 400 AM MST Tue Jul 21 2026 ...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH MONDAY EVENING... .TODAY...Partly cloudy in the morning then becoming mostly sunny. A slight chance of showers and thunderstorms. Highs 100 to 105. South wind 5 to 10 mph in the morning becoming west around 5 mph in the afternoon. Chance of rain 10 percent. .TONIGHT...Mostly clear in the evening then becoming partly cloudy. Lows 77 to 87. South wind 5 to 10 mph. .WEDNESDAY...Partly sunny in the morning then becoming sunny. Highs 104 to 109. East wind around 5 mph in the morning becoming northwest in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 80 to 90. North wind around 5 mph in the evening becoming south after midnight. .THURSDAY...Sunny and hot. Highs 109 to 114. East wind around 5 mph in the morning becoming northeast in the afternoon. .THURSDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 84 to 92. .FRIDAY...Mostly sunny and hot. Highs 106 to 114. .FRIDAY NIGHT...Partly cloudy. A 10 percent chance of thunderstorms in the evening. Lows 83 to 91. .SATURDAY...Partly sunny in the morning then becoming sunny. Very hot. Highs 106 to 116. .SATURDAY NIGHT...Partly cloudy. Lows 84 to 92. .SUNDAY...Partly cloudy and very hot. Highs 107 to 115. .SUNDAY NIGHT...Considerable cloudiness. Lows 83 to 91. .MONDAY...Considerable cloudiness in the morning, then partly sunny with a 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 104 to 112. $$ AZZ534-538-212300- Aguila Valley-Tonopah Desert- Including the cities of Aguila, Gladden, Wickenburg, Arlington, Hassayampa, Tonopah, and Wintersburg 400 AM MST Tue Jul 21 2026 ...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH MONDAY EVENING... .TODAY...Partly cloudy. A slight chance of showers and thunderstorms in the morning. Highs 98 to 103. South wind 5 to 10 mph in the morning becoming southwest around 5 mph in the afternoon. Chance of rain 10 percent. .TONIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 76 to 86. South wind around 5 mph in the evening becoming southeast 5 to 10 mph after midnight. Chance of rain 10 percent. .WEDNESDAY...Mostly sunny and warmer. Highs 103 to 108. Southeast wind around 5 mph in the morning becoming light in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 79 to 89. South wind around 5 mph in the evening becoming north after midnight. .THURSDAY...Sunny and hot. Highs 109 to 114. East wind around 5 mph in the morning becoming southeast in the afternoon. .THURSDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 82 to 91. .FRIDAY...Mostly sunny. Hot. Highs 106 to 114. Chance of precipitation 10 percent. .FRIDAY NIGHT...Partly cloudy. Lows 82 to 90. .SATURDAY...Mostly sunny and very hot. Highs 107 to 115. .SATURDAY NIGHT...Partly cloudy. Lows 83 to 91. .SUNDAY...Partly cloudy and very hot. Highs 107 to 115. .SUNDAY NIGHT...Considerable cloudiness. Lows 82 to 90. .MONDAY...Considerable cloudiness in the morning then becoming partly sunny. Hot. Highs 104 to 112. $$ AZZ531-533-212300- Kofa-Central La Paz- Including the cities of Palm Canyon, Brenda, Harcuvar, Quartzsite, Vicksburg, Vicksburg Junction, and Salome 400 AM MST Tue Jul 21 2026 ...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH MONDAY EVENING... .TODAY...Partly cloudy. Highs 101 to 106. Southeast wind 5 to 10 mph in the morning becoming southwest in the afternoon. .TONIGHT...Partly cloudy. Lows 76 to 86. South wind 5 to 10 mph. .WEDNESDAY...Mostly sunny and hot. Highs 106 to 111. Southeast wind 5 to 10 mph in the morning becoming southwest in the afternoon. .WEDNESDAY NIGHT...Mostly clear and warmer. Lows 81 to 91. Southwest wind around 5 mph in the evening becoming southeast 5 to 10 mph after midnight. .THURSDAY...Sunny and very hot. Highs 110 to 115. East wind around 5 mph in the morning becoming south in the afternoon. .THURSDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 83 to 92. .FRIDAY...Mostly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 106 to 114. .FRIDAY NIGHT...Mostly clear. Lows 83 to 91. .SATURDAY...Mostly sunny and very hot. Highs 108 to 116. .SATURDAY NIGHT...Partly cloudy. Lows 83 to 91. .SUNDAY...Partly sunny and very hot. Highs 106 to 116. .SUNDAY NIGHT...Partly cloudy. Lows 82 to 90. .MONDAY...Partly cloudy. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 105 to 113. $$ AZZ535-536-212300- Southeast Yuma County-Gila River Valley- Including the city of Ligurta 400 AM MST Tue Jul 21 2026 ...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH MONDAY EVENING... .TODAY...Partly sunny. Highs 100 to 105. South wind 5 to 10 mph. .TONIGHT...Mostly clear in the evening then becoming partly cloudy. Lows 77 to 87. South wind 5 to 10 mph. .WEDNESDAY...Partly sunny in the morning then becoming sunny. Hot. Highs 105 to 110. Light wind in the morning becoming southwest around 5 mph in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 81 to 91. Southwest wind around 5 mph. .THURSDAY...Sunny and very hot. Highs 110 to 115. Light wind in the morning becoming south around 5 mph in the afternoon. .THURSDAY NIGHT...Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 87 to 92. .FRIDAY...Mostly sunny and very hot. Highs 109 to 115. .FRIDAY NIGHT...Clear in the evening then becoming partly cloudy. Lows 85 to 91. .SATURDAY...Partly sunny in the morning then becoming sunny. Very hot. Highs 110 to 116. .SATURDAY NIGHT...Partly cloudy. Lows 86 to 91. .SUNDAY...Partly cloudy and very hot. Highs 110 to 116. .SUNDAY NIGHT...Partly cloudy. Lows 85 to 90. .MONDAY...Considerable cloudiness in the morning then becoming partly sunny. Hot. Highs 104 to 112. $$ AZZ530-CAZ569-212300- Parker Valley-Palo Verde Valley- Including the cities of Parker, Ehrenberg, Martinez Lake, Blythe, Palo Verde, and Ripley 400 AM MST Tue Jul 21 2026 /400 AM PDT Tue Jul 21 2026/ ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH MONDAY EVENING... .TODAY...Partly sunny in the morning then becoming mostly sunny. Highs 103 to 108. South wind 5 to 15 mph. .TONIGHT...Mostly clear in the evening then becoming partly cloudy. Lows 78 to 88. South wind 5 to 15 mph. .WEDNESDAY...Mostly sunny and hot. Highs 107 to 112. South wind 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows 81 to 91. South wind 5 to 10 mph. .THURSDAY...Sunny and very hot. Highs 111 to 116. South wind 5 to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 86 to 94. .FRIDAY...Sunny. A 10 percent chance of afternoon showers and thunderstorms. Very hot. Highs 110 to 116. .FRIDAY NIGHT...Mostly clear. Lows 85 to 92. .SATURDAY...Mostly sunny and very hot. Highs 111 to 117. .SATURDAY NIGHT...Partly cloudy. Lows 86 to 93. .SUNDAY...Partly sunny and very hot. Highs 112 to 118. .SUNDAY NIGHT...Partly cloudy. Lows 84 to 92. .MONDAY...Partly cloudy and very hot. Highs 109 to 115. $$ CAZ564-565-568-570-212300- 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 Tue Jul 21 2026 ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH MONDAY EVENING... .TODAY...Mostly sunny. Highs 103 to 108. South wind 5 to 10 mph. .TONIGHT...Mostly clear. Lows 78 to 88. Southwest wind 5 to 10 mph. .WEDNESDAY...Mostly sunny and hot. Highs 107 to 112. Southwest wind 5 to 10 mph. .WEDNESDAY NIGHT...Clear. Lows 82 to 92. Southwest wind 5 to 10 mph in the evening becoming west after midnight. .THURSDAY...Sunny and very hot. Highs 111 to 116. Northeast wind around 5 mph in the morning becoming south 5 to 10 mph in the afternoon. .THURSDAY NIGHT...Mostly clear. Lows 85 to 94. .FRIDAY...Mostly sunny and very hot. Highs 104 to 116. .FRIDAY NIGHT...Clear. Lows 83 to 93. .SATURDAY...Mostly sunny and very hot. Highs 105 to 117. .SATURDAY NIGHT...Mostly clear. Lows 84 to 94. .SUNDAY...Partly sunny and very hot. Highs 105 to 117. .SUNDAY NIGHT...Partly cloudy. Lows 82 to 91. .MONDAY...Partly sunny and very hot. Highs 103 to 115. $$ CAZ563-567-212300- Salton Sea-Imperial Valley- Including the cities of Desert Shores, El Centro, Calexico, Alamorio, and Brawley 400 AM PDT Tue Jul 21 2026 ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH MONDAY EVENING... .TODAY...Sunny and hot. Highs 107 to 112. Southwest wind 5 to 10 mph. .TONIGHT...Mostly clear. Lows 75 to 85. West wind 10 to 15 mph. .WEDNESDAY...Sunny and hot. Highs 108 to 113. West wind 5 to 10 mph in the morning becoming south in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 79 to 89. Southwest wind 5 to 10 mph in the evening becoming northwest after midnight. .THURSDAY...Sunny and very hot. Highs 113 to 118. West wind around 5 mph in the morning becoming southeast 5 to 10 mph in the afternoon. .THURSDAY NIGHT...Clear. Lows 87 to 92. .FRIDAY...Sunny and very hot. Highs 106 to 118. .FRIDAY NIGHT...Clear. Lows 86 to 91. .SATURDAY...Mostly sunny and very hot. Highs 107 to 119. .SATURDAY NIGHT...Mostly clear. Lows 86 to 91. .SUNDAY...Mostly sunny and very hot. Highs 108 to 120. .SUNDAY NIGHT...Partly cloudy. Lows 85 to 90. .MONDAY...Partly sunny and very hot. Highs 106 to 118. $$ CAZ566-212300- Imperial County West- Including the cities of Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, and Plaster City 400 AM PDT Tue Jul 21 2026 ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH MONDAY EVENING... .TODAY...Sunny and hot. Highs 107 to 112. West wind 10 to 15 mph in the morning becoming south in the afternoon. .TONIGHT...Mostly clear and breezy. Lows 76 to 86. West wind 10 to 20 mph. Gusts up to 30 mph in the evening. .WEDNESDAY...Sunny and hot. Highs 108 to 113. West wind 5 to 10 mph in the morning becoming southeast in the afternoon. .WEDNESDAY NIGHT...Clear and warmer. Lows 81 to 91. West wind 5 to 10 mph. .THURSDAY...Sunny and very hot. Highs 112 to 117. West wind around 5 mph in the morning becoming southeast 5 to 10 mph in the afternoon. .THURSDAY NIGHT...Clear. Lows 88 to 93. .FRIDAY...Sunny and very hot. Highs 113 to 117. .FRIDAY NIGHT...Mostly clear. Lows 87 to 93. .SATURDAY...Sunny and very hot. Highs 114 to 120. .SATURDAY NIGHT...Clear. Lows 87 to 92. .SUNDAY...Mostly sunny and very hot. Highs 114 to 120. .SUNDAY NIGHT...Mostly clear. Lows 86 to 91. .MONDAY...Partly sunny and very hot. Highs 112 to 118. $$ CAZ562-212300- Imperial County Southwest- Including the city of Mountain Spring 400 AM PDT Tue Jul 21 2026 ...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH MONDAY EVENING... .TODAY...Sunny, windy and hot. Highs 106 to 111. West wind 15 to 25 mph. Gusts up to 40 mph. .TONIGHT...Mostly clear and windy. Lows 79 to 89. Southwest wind 15 to 25 mph. Gusts up to 35 mph. .WEDNESDAY...Sunny and hot. Highs 108 to 113. Southwest wind 10 to 20 mph in the morning becoming southeast 5 to 10 mph in the afternoon. .WEDNESDAY NIGHT...Clear and warmer. Lows 84 to 94. West wind 5 to 15 mph. .THURSDAY...Sunny and very hot. Highs 112 to 117. Southwest wind 10 to 15 mph in the morning becoming southeast in the afternoon. .THURSDAY NIGHT...Clear. Lows 87 to 98. .FRIDAY...Mostly sunny. A 10 percent chance of afternoon showers and thunderstorms. Very hot. Highs 106 to 116. .FRIDAY NIGHT...Mostly clear. Lows 86 to 97. .SATURDAY...Sunny and very hot. Highs 106 to 118. .SATURDAY NIGHT...Clear. Lows 86 to 96. .SUNDAY...Mostly sunny and very hot. Highs 107 to 119. .SUNDAY NIGHT...Mostly clear. Lows 85 to 95. .MONDAY...Partly sunny and very hot. Highs 107 to 117. $$ CAZ560-561-212300- Joshua Tree NP West-Joshua Tree NP East- Including the cities of Cottonwood Visitor and Lost Horse-Keys Village 400 AM PDT Tue Jul 21 2026 ...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH MONDAY EVENING... .TODAY...Mostly sunny. Highs 94 to 104. West wind 5 to 10 mph in the morning becoming south in the afternoon. .TONIGHT...Mostly clear. Lows 75 to 85. West wind 5 to 15 mph. .WEDNESDAY...Sunny. Highs 97 to 107. Northwest wind 5 to 10 mph in the morning becoming south in the afternoon. .WEDNESDAY NIGHT...Clear. Lows 78 to 88. West wind 5 to 10 mph. .THURSDAY...Sunny and hot. Highs 100 to 110. North wind 5 to 10 mph in the morning becoming south 10 to 15 mph in the afternoon. .THURSDAY NIGHT...Clear. Lows 74 to 90. .FRIDAY...Mostly sunny. A 10 percent chance of afternoon showers and thunderstorms. Hot. Highs 94 to 110. .FRIDAY NIGHT...Mostly clear. Lows 73 to 89. .SATURDAY...Sunny and hot. Highs 95 to 111. .SATURDAY NIGHT...Clear. Lows 73 to 89. .SUNDAY...Mostly sunny and hot. Highs 96 to 112. .SUNDAY NIGHT...Mostly clear. Lows 72 to 88. .MONDAY...Partly sunny and hot. Highs 95 to 111. $$ Visit us on Facebook, Twitter, and at weather.gov/phoenix