FPUS55 KPSR 212041 ZFPPSR Zone Forecast Product for Southwest Arizona/Southeast California National Weather Service Phoenix AZ 141 PM MST Sat Mar 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 141 PM MST Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TODAY...Sunny and hot. Highs 101 to 105. West wind 5 to 10 mph. .TONIGHT...Mostly clear. Lows 63 to 71. West wind 5 to 10 mph in the evening becoming north around 5 mph after midnight. .SUNDAY...Partly sunny and hot. Highs 97 to 102. East wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. .SUNDAY NIGHT...Partly cloudy. Lows 61 to 70. West wind 5 to 10 mph in the evening becoming east around 5 mph after midnight. .MONDAY...Sunny. Highs 94 to 99. East wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. .MONDAY NIGHT...Clear. Lows 61 to 68. .TUESDAY...Sunny and hot. Highs 95 to 101. .TUESDAY NIGHT...Clear. Lows 62 to 69. .WEDNESDAY...Sunny and hot. Highs 98 to 103. .WEDNESDAY NIGHT...Clear. Lows 63 to 69. .THURSDAY...Sunny and hot. Highs 98 to 104. .THURSDAY NIGHT...Clear. Lows 63 to 70. .FRIDAY...Partly sunny and hot. Highs 98 to 104. $$ AZZ541-549-555-212300- Cave Creek/New River-Fountain Hills/East Mesa- Apache Junction/Gold Canyon- Including the cities of Scottsdale, Fountain Hills, and Apache Junction 141 PM MST Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TODAY...Sunny and hot. Highs 99 to 104. West wind 5 to 10 mph. .TONIGHT...Mostly clear. Lows 60 to 70. Northwest wind 5 to 10 mph in the evening becoming northeast after midnight. .SUNDAY...Partly sunny and hot. Highs 97 to 102. East wind 5 to 10 mph in the morning becoming southwest in the afternoon. .SUNDAY NIGHT...Partly cloudy. Lows 58 to 68. Northwest wind around 5 mph in the evening becoming east after midnight. .MONDAY...Mostly sunny. Highs 94 to 99. Southeast wind 5 to 10 mph in the morning becoming southwest in the afternoon. .MONDAY NIGHT...Clear. Lows 62 to 67. .TUESDAY...Sunny and hot. Highs 94 to 100. .TUESDAY NIGHT...Clear. Lows 63 to 68. .WEDNESDAY...Sunny and hot. Highs 96 to 102. .WEDNESDAY NIGHT...Clear. Lows 64 to 69. .THURSDAY...Sunny and hot. Highs 97 to 103. .THURSDAY NIGHT...Clear. Lows 64 to 69. .FRIDAY...Partly sunny and hot. Highs 97 to 103. $$ AZZ553-554-212300- Northwest Pinal County-West Pinal County- Including the cities of Casa Grande, Cactus Forest, Florence, and Coolidge 141 PM MST Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TODAY...Sunny and hot. Highs 101 to 106. Northwest wind 5 to 10 mph. .TONIGHT...Mostly clear. Lows 59 to 69. West wind 5 to 10 mph in the evening becoming south around 5 mph after midnight. .SUNDAY...Mostly sunny in the morning then becoming partly sunny. Hot. Highs 97 to 102. Southeast wind around 5 mph in the morning becoming west 5 to 10 mph in the afternoon. .SUNDAY NIGHT...Partly cloudy. Lows 56 to 66. West wind 5 to 10 mph in the evening becoming south around 5 mph after midnight. .MONDAY...Sunny and hot. Highs 95 to 100. Southeast wind around 5 mph in the morning becoming west 5 to 10 mph in the afternoon. .MONDAY NIGHT...Clear. Lows 57 to 66. .TUESDAY...Sunny and hot. Highs 95 to 101. .TUESDAY NIGHT...Clear. Lows 58 to 66. .WEDNESDAY...Sunny and hot. Highs 98 to 104. .WEDNESDAY NIGHT...Clear. Lows 58 to 67. .THURSDAY...Sunny and hot. Highs 99 to 105. .THURSDAY NIGHT...Clear. Lows 58 to 67. .FRIDAY...Partly sunny and hot. Highs 98 to 104. $$ AZZ532-212300- Yuma- Including the cities of Yuma and Fortuna Foothills 141 PM MST Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TODAY...Sunny and hot. Highs near 106. West wind 5 to 10 mph. .TONIGHT...Mostly clear. Lows 65 to 69. Northwest wind 5 to 10 mph. .SUNDAY...Mostly sunny and hot. Highs near 101. West wind 5 to 10 mph. .SUNDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 62 to 66. Southwest wind 5 to 10 mph in the evening becoming southeast after midnight. .MONDAY...Sunny. Not as warm. Highs near 95. South wind 10 to 15 mph. .MONDAY NIGHT...Clear. Lows near 60. .TUESDAY...Sunny. Highs in the mid to upper 90s. .TUESDAY NIGHT...Clear. Lows in the lower to mid 60s. .WEDNESDAY...Sunny and hot. Highs 99 to 103. .WEDNESDAY NIGHT...Clear. Lows 61 to 66. .THURSDAY...Sunny and hot. Highs 101 to 103. .THURSDAY NIGHT...Clear. Lows 62 to 68. .FRIDAY...Partly sunny and hot. Highs 100 to 104. $$ AZZ562-212300- Globe/Miami- Including the cities of Globe and Miami 141 PM MST Sat Mar 21 2026 .TODAY...Sunny. Highs 87 to 97. West wind 5 to 15 mph. .TONIGHT...Mostly clear. Lows 55 to 65. West wind 10 to 15 mph in the evening becoming north around 5 mph after midnight. .SUNDAY...Partly sunny. Highs 85 to 95. Northeast wind around 5 mph in the morning becoming west 5 to 15 mph in the afternoon. .SUNDAY NIGHT...Partly cloudy. Lows 52 to 62. West wind 5 to 10 mph in the evening becoming southeast around 5 mph after midnight. .MONDAY...Mostly sunny. Highs 83 to 93. Southeast wind around 5 mph in the morning becoming southwest 5 to 15 mph in the afternoon. .MONDAY NIGHT...Clear. Lows near 60. .TUESDAY...Sunny. Highs near 90. .TUESDAY NIGHT...Clear. Lows near 60. .WEDNESDAY...Sunny. Highs 91 to 97. .WEDNESDAY NIGHT...Clear. Lows near 60. .THURSDAY...Sunny. Highs 90 to 96. .THURSDAY NIGHT...Clear. Lows near 60. .FRIDAY...Sunny in the morning then becoming partly sunny. Highs 89 to 95. $$ AZZ545-547-552-561-212300- New River Mesa-Rio Verde/Salt River-Superior-Dripping Springs- Including the cities of Tortilla Flat, Superior, Hayden, and Winkelman 141 PM MST Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TODAY...Sunny and hot. Highs 99 to 104. West wind 10 to 15 mph. .TONIGHT...Mostly clear. Lows 61 to 71. West wind 5 to 10 mph in the evening becoming northeast after midnight. .SUNDAY...Partly sunny and hot. Highs 96 to 101. East wind 5 to 10 mph in the morning becoming southwest in the afternoon. .SUNDAY NIGHT...Partly cloudy. Lows 58 to 68. Northwest wind 5 to 10 mph in the evening becoming east around 5 mph after midnight. .MONDAY...Mostly sunny. Highs 93 to 98. Southeast wind 5 to 10 mph in the morning becoming southwest in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 59 to 67. .TUESDAY...Sunny. Highs 87 to 99. .TUESDAY NIGHT...Clear. Lows 59 to 68. .WEDNESDAY...Sunny and hot. Highs 90 to 102. .WEDNESDAY NIGHT...Clear. Lows 60 to 68. .THURSDAY...Sunny and hot. Highs 90 to 102. .THURSDAY NIGHT...Clear. Lows 61 to 69. .FRIDAY...Sunny in the morning then becoming partly sunny. Hot. Highs 90 to 102. $$ AZZ556>558-212300- Tonto Basin-Mazatzal Mountains-Pinal/Superstition Mountains- Including the cities of Punkin Center and Sunflower 141 PM MST Sat Mar 21 2026 .TODAY...Sunny. Highs 94 to 99. West wind 5 to 15 mph. .TONIGHT...Mostly clear. Lows 57 to 67. West wind 10 to 15 mph in the evening becoming north 5 to 10 mph after midnight. .SUNDAY...Partly sunny. Highs 91 to 96. East wind 5 to 10 mph in the morning becoming southwest 10 to 15 mph in the afternoon. .SUNDAY NIGHT...Partly cloudy. Lows 55 to 65. West wind 10 to 15 mph in the evening becoming southeast 5 to 10 mph after midnight. .MONDAY...Mostly sunny. Highs 89 to 94. Southeast wind 5 to 10 mph in the morning becoming southwest 10 to 15 mph in the afternoon. .MONDAY NIGHT...Clear. Lows 55 to 63. .TUESDAY...Sunny. Highs 81 to 95. .TUESDAY NIGHT...Clear. Lows 56 to 64. .WEDNESDAY...Sunny. Highs 83 to 97. .WEDNESDAY NIGHT...Clear. Lows 56 to 64. .THURSDAY...Sunny. Highs 83 to 97. .THURSDAY NIGHT...Clear. Lows 56 to 65. .FRIDAY...Sunny in the morning then becoming partly sunny. Highs 83 to 97. $$ AZZ560-563-212300- San Carlos-Southeast Gila County- Including the cities of San Carlos and Peridot 141 PM MST Sat Mar 21 2026 .TODAY...Sunny. Highs 88 to 98. West wind 5 to 15 mph. .TONIGHT...Mostly clear. Lows 56 to 66. West wind 10 to 15 mph in the evening becoming northeast around 5 mph after midnight. .SUNDAY...Partly sunny. Highs 85 to 95. East wind 5 to 10 mph in the morning becoming west 5 to 15 mph in the afternoon. .SUNDAY NIGHT...Partly cloudy. Lows 53 to 63. Northwest wind 10 to 15 mph in the evening becoming northeast around 5 mph after midnight. .MONDAY...Mostly sunny. Highs 83 to 93. East wind 5 to 10 mph in the morning becoming southwest 5 to 15 mph in the afternoon. .MONDAY NIGHT...Clear. Lows 42 to 62. .TUESDAY...Sunny. Highs 80 to 94. .TUESDAY NIGHT...Clear. Lows 44 to 62. .WEDNESDAY...Sunny. Highs 83 to 97. .WEDNESDAY NIGHT...Clear. Lows 44 to 63. .THURSDAY...Sunny. Highs 83 to 97. .THURSDAY NIGHT...Clear. Lows 43 to 63. .FRIDAY...Mostly sunny. Highs 81 to 95. $$ AZZ539-559-212300- Gila Bend-Sonoran Desert Natl Monument- Including the cities of Gila Bend, Sentinel, and Kaka 141 PM MST Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TODAY...Sunny and hot. Highs 102 to 107. West wind 5 to 10 mph. .TONIGHT...Mostly clear. Lows 64 to 74. West wind 5 to 10 mph in the evening becoming south around 5 mph after midnight. .SUNDAY...Mostly sunny in the morning then becoming partly sunny. Hot. Highs 98 to 103. Southwest wind 5 to 10 mph. .SUNDAY NIGHT...Partly cloudy. Lows 60 to 70. Southwest wind 5 to 10 mph. .MONDAY...Mostly sunny. Highs 94 to 99. South wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. .MONDAY NIGHT...Clear. Lows 58 to 68. .TUESDAY...Sunny and hot. Highs 95 to 101. .TUESDAY NIGHT...Clear. Lows 60 to 69. .WEDNESDAY...Sunny and hot. Highs 98 to 104. .WEDNESDAY NIGHT...Clear. Lows 61 to 71. .THURSDAY...Sunny and hot. Highs 98 to 104. .THURSDAY NIGHT...Clear. Lows 62 to 71. .FRIDAY...Partly sunny and hot. Highs 98 to 104. $$ AZZ534-538-212300- Aguila Valley-Tonopah Desert- Including the cities of Aguila, Gladden, Wickenburg, Arlington, Hassayampa, Tonopah, and Wintersburg 141 PM MST Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TODAY...Sunny and hot. Highs 101 to 106. Southwest wind 5 to 10 mph. .TONIGHT...Mostly clear. Lows 61 to 71. Northwest wind 5 to 10 mph. .SUNDAY...Partly sunny and hot. Highs 96 to 101. East wind around 5 mph in the morning becoming southwest 5 to 10 mph in the afternoon. .SUNDAY NIGHT...Partly cloudy. Lows 58 to 68. Southwest wind 5 to 10 mph in the evening becoming northeast around 5 mph after midnight. .MONDAY...Sunny. Highs 93 to 98. East wind 5 to 10 mph in the morning becoming southwest in the afternoon. .MONDAY NIGHT...Clear. Lows 57 to 67. .TUESDAY...Sunny. Highs 93 to 99. .TUESDAY NIGHT...Clear. Lows 58 to 67. .WEDNESDAY...Sunny and hot. Highs 96 to 102. .WEDNESDAY NIGHT...Clear. Lows 59 to 69. .THURSDAY...Sunny and hot. Highs 96 to 104. .THURSDAY NIGHT...Clear. Lows 60 to 70. .FRIDAY...Partly sunny and hot. Highs 96 to 103. $$ AZZ531-533-212300- Kofa-Central La Paz- Including the cities of Palm Canyon, Brenda, Harcuvar, Quartzsite, Vicksburg, Vicksburg Junction, and Salome 141 PM MST Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TODAY...Sunny and hot. Highs 101 to 106. West wind 5 to 10 mph. .TONIGHT...Mostly clear in the evening then becoming partly cloudy. Lows 62 to 72. West wind 5 to 10 mph. .SUNDAY...Partly sunny and hot. Highs 96 to 101. Southwest wind 5 to 10 mph. .SUNDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 60 to 70. Southwest wind 5 to 10 mph in the evening becoming southeast around 5 mph after midnight. .MONDAY...Sunny. Highs 94 to 99. South wind 5 to 10 mph. .MONDAY NIGHT...Clear. Lows 59 to 67. .TUESDAY...Sunny. Highs 91 to 99. .TUESDAY NIGHT...Clear. Lows 59 to 69. .WEDNESDAY...Sunny and hot. Highs 94 to 102. .WEDNESDAY NIGHT...Clear. Lows 60 to 70. .THURSDAY...Sunny and hot. Highs 95 to 103. .THURSDAY NIGHT...Clear. Lows 60 to 71. .FRIDAY...Partly sunny and hot. Highs 95 to 103. $$ AZZ535-536-212300- Southeast Yuma County-Gila River Valley- Including the city of Ligurta 141 PM MST Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TODAY...Sunny and hot. Highs 102 to 107. West wind 5 to 10 mph. .TONIGHT...Mostly clear in the evening then becoming partly cloudy. Lows 61 to 71. West wind 5 to 10 mph. .SUNDAY...Mostly sunny in the morning then becoming partly sunny. Hot. Highs 97 to 102. West wind 5 to 10 mph. .SUNDAY NIGHT...Partly cloudy and cooler. Lows 56 to 66. South wind 5 to 10 mph. .MONDAY...Sunny. Highs 93 to 98. South wind 5 to 15 mph. .MONDAY NIGHT...Mostly clear. Lows 56 to 65. .TUESDAY...Sunny. Highs 93 to 99. .TUESDAY NIGHT...Clear. Lows 57 to 66. .WEDNESDAY...Sunny and hot. Highs 99 to 103. .WEDNESDAY NIGHT...Clear. Lows 58 to 68. .THURSDAY...Sunny and hot. Highs 100 to 104. .THURSDAY NIGHT...Clear. Lows 59 to 69. .FRIDAY...Partly sunny and hot. Highs 99 to 103. $$ AZZ530-CAZ569-212300- Parker Valley-Palo Verde Valley- Including the cities of Parker, Ehrenberg, Martinez Lake, Blythe, Palo Verde, and Ripley 141 PM MST Sat Mar 21 2026 /141 PM PDT Sat Mar 21 2026/ ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST /8 PM PDT/ SUNDAY... .TODAY...Sunny and hot. Highs 102 to 107. Southwest wind 5 to 10 mph. .TONIGHT...Partly cloudy. Lows 60 to 70. Southwest wind 5 to 15 mph. .SUNDAY...Mostly sunny in the morning then becoming partly sunny. Hot. Highs 97 to 102. West wind 5 to 10 mph. .SUNDAY NIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 57 to 67. South wind 5 to 10 mph. .MONDAY...Sunny and hot. Highs 95 to 100. South wind 5 to 15 mph. .MONDAY NIGHT...Clear. Lows 59 to 64. .TUESDAY...Sunny and hot. Highs 95 to 101. .TUESDAY NIGHT...Clear. Lows 58 to 65. .WEDNESDAY...Sunny and hot. Highs 98 to 104. .WEDNESDAY NIGHT...Clear. Lows 59 to 67. .THURSDAY...Sunny and hot. Highs 99 to 105. .THURSDAY NIGHT...Clear. Lows 60 to 67. .FRIDAY...Partly sunny and hot. Highs 99 to 105. $$ CAZ564-565-568-570-212300- Chuckwalla Mountains-Imperial County Southeast-Chiriaco Summit- Chuckwalla Valley- Including the cities of Imperial Hot Mineral Springs, Winterhaven, Chiriaco Summit, and Midland 141 PM PDT Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT SUNDAY... .TODAY...Sunny and hot. Highs 102 to 107. Southwest wind 10 to 15 mph. .TONIGHT...Partly cloudy in the evening then becoming mostly clear. Lows 62 to 72. West wind 5 to 15 mph. .SUNDAY...Mostly sunny in the morning then becoming partly sunny. Hot. Highs 96 to 101. Northwest wind 5 to 10 mph in the morning becoming west in the afternoon. .SUNDAY NIGHT...Partly cloudy in the evening then becoming clear. Lows 60 to 70. Southwest wind 5 to 10 mph. .MONDAY...Sunny. Highs 94 to 99. South wind 5 to 15 mph. .MONDAY NIGHT...Clear. Lows 60 to 68. .TUESDAY...Sunny. Highs 89 to 99. .TUESDAY NIGHT...Clear. Lows 60 to 70. .WEDNESDAY...Sunny and hot. Highs 93 to 103. .WEDNESDAY NIGHT...Clear. Lows 61 to 70. .THURSDAY...Sunny and hot. Highs 93 to 103. .THURSDAY NIGHT...Clear. Lows 62 to 72. .FRIDAY...Mostly sunny and hot. Highs 93 to 103. $$ CAZ563-567-212300- Salton Sea-Imperial Valley- Including the cities of Desert Shores, El Centro, Calexico, Alamorio, and Brawley 141 PM PDT Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT SUNDAY... .TODAY...Sunny and hot. Highs 104 to 109. West wind 10 to 15 mph. .TONIGHT...Mostly clear. Lows 63 to 73. West wind 10 to 20 mph in the evening decreasing to 5 to 10 mph after midnight. .SUNDAY...Mostly sunny in the morning then becoming partly sunny. Hot. Highs 99 to 104. West wind 5 to 10 mph. .SUNDAY NIGHT...Mostly clear. Lows 60 to 70. West wind 5 to 10 mph in the evening becoming southeast around 5 mph after midnight. .MONDAY...Sunny and hot. Highs 96 to 101. Southeast wind 5 to 10 mph. .MONDAY NIGHT...Clear. Lows 60 to 69. .TUESDAY...Mostly sunny and hot. Highs 92 to 100. .TUESDAY NIGHT...Clear. Lows 60 to 70. .WEDNESDAY...Sunny and hot. Highs 95 to 105. .WEDNESDAY NIGHT...Clear. Lows 61 to 71. .THURSDAY...Sunny and hot. Highs 96 to 106. .THURSDAY NIGHT...Clear. Lows 62 to 71. .FRIDAY...Partly sunny and hot. Highs 97 to 105. $$ CAZ566-212300- Imperial County West- Including the cities of Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, and Plaster City 141 PM PDT Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT SUNDAY... .TODAY...Sunny and hot. Highs 104 to 109. West wind 10 to 20 mph. .TONIGHT...Partly cloudy and breezy. Lows 65 to 75. West wind 10 to 20 mph. Gusts up to 30 mph in the evening. .SUNDAY...Mostly sunny in the morning then becoming partly sunny. Hot. Highs 98 to 103. Northwest wind 5 to 10 mph. .SUNDAY NIGHT...Mostly clear. Lows 62 to 72. West wind 5 to 15 mph. .MONDAY...Sunny and hot. Highs 96 to 101. Southeast wind 5 to 10 mph. .MONDAY NIGHT...Mostly clear. Lows 61 to 71. .TUESDAY...Sunny and hot. Highs 96 to 100. .TUESDAY NIGHT...Clear. Lows 62 to 73. .WEDNESDAY...Sunny and hot. Highs 100 to 104. .WEDNESDAY NIGHT...Clear. Lows 63 to 73. .THURSDAY...Sunny and hot. Highs 101 to 105. .THURSDAY NIGHT...Clear. Lows 64 to 74. .FRIDAY...Partly sunny and hot. Highs 101 to 105. $$ CAZ562-212300- Imperial County Southwest- Including the city of Mountain Spring 141 PM PDT Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT SUNDAY... .TODAY...Sunny, windy and hot. Highs 104 to 109. West wind 15 to 25 mph. Gusts up to 35 mph. .TONIGHT...Partly cloudy and windy. Lows 69 to 79. West wind 15 to 25 mph. Gusts up to 40 mph. .SUNDAY...Mostly sunny in the morning then becoming partly sunny. Hot. Highs 97 to 102. West wind 10 to 20 mph. .SUNDAY NIGHT...Mostly clear. Lows 66 to 76. West wind 10 to 20 mph. .MONDAY...Sunny and hot. Highs 96 to 101. Southwest wind 5 to 10 mph in the morning becoming southeast in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 65 to 75. .TUESDAY...Sunny and hot. Highs 90 to 100. .TUESDAY NIGHT...Clear. Lows 66 to 77. .WEDNESDAY...Sunny and hot. Highs 94 to 104. .WEDNESDAY NIGHT...Clear. Lows 67 to 77. .THURSDAY...Sunny and hot. Highs 95 to 105. .THURSDAY NIGHT...Mostly clear. Lows 67 to 78. .FRIDAY...Partly sunny and hot. Highs 94 to 104. $$ CAZ560-212300- Joshua Tree NP West- Including the cities of Cottonwood Visitor and Lost Horse-Keys Village 141 PM PDT Sat Mar 21 2026 .TODAY...Sunny and windy. Highs 84 to 94. Southwest wind 10 to 20 mph. Gusts up to 35 mph. .TONIGHT...Partly cloudy and breezy. Lows 59 to 69. West wind 10 to 20 mph in the evening decreasing to 5 to 10 mph after midnight. Gusts up to 30 mph in the evening. .SUNDAY...Partly sunny. Highs 80 to 90. West wind 5 to 10 mph. .SUNDAY NIGHT...Mostly clear. Lows 58 to 68. West wind 5 to 10 mph. .MONDAY...Sunny. Highs 80 to 90. Southwest wind 5 to 15 mph. .MONDAY NIGHT...Clear. Lows 54 to 67. .TUESDAY...Sunny. Highs 80 to 90. .TUESDAY NIGHT...Clear. Lows 56 to 68. .WEDNESDAY...Sunny. Highs 82 to 92. .WEDNESDAY NIGHT...Clear. Lows 54 to 67. .THURSDAY...Sunny. Highs 82 to 92. .THURSDAY NIGHT...Clear. Lows 55 to 69. .FRIDAY...Partly sunny. Highs 82 to 92. $$ CAZ561-212300- Joshua Tree NP East- 141 PM PDT Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM PDT SUNDAY... .TODAY...Sunny and hot. Highs 92 to 102. Southwest wind 5 to 15 mph. .TONIGHT...Partly cloudy. Lows 60 to 70. West wind 5 to 15 mph. .SUNDAY...Partly sunny. Not as warm. Highs 87 to 97. Northwest wind 5 to 15 mph. .SUNDAY NIGHT...Partly cloudy in the evening then becoming clear. Lows 59 to 69. West wind 5 to 10 mph. .MONDAY...Sunny. Highs 87 to 97. Southwest wind around 5 mph in the morning becoming south 10 to 15 mph in the afternoon. .MONDAY NIGHT...Clear. Lows 62 to 68. .TUESDAY...Sunny. Highs 89 to 97. .TUESDAY NIGHT...Clear. Lows 63 to 69. .WEDNESDAY...Sunny. Highs 91 to 99. .WEDNESDAY NIGHT...Clear. Lows 63 to 68. .THURSDAY...Sunny. Highs 91 to 99. .THURSDAY NIGHT...Clear. Lows 63 to 69. .FRIDAY...Partly sunny. Highs 91 to 99. $$ Visit us on Facebook, Twitter, and at weather.gov/phoenix