FPUS55 KTWC 211633 ZFPTWC Zone Forecast Product for Southeast Arizona National Weather Service Tucson AZ 933 AM MST Sat Mar 21 2026 AZZ501-220200- Western Pima County- Including Ajo and Organ Pipe Cactus N.M. 933 AM MST Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .REST OF TODAY...Sunny. Highs 102 to 107. .TONIGHT...Mostly clear. Lows 64 to 70. .SUNDAY...Mostly sunny. Highs 97 to 102. .SUNDAY NIGHT...Partly cloudy. Lows 60 to 66. .MONDAY...Sunny. Highs 91 to 96. .MONDAY NIGHT...Mostly clear. Lows 59 to 65. .TUESDAY...Sunny. Highs 94 to 99. .TUESDAY NIGHT...Clear. Lows 61 to 67. .WEDNESDAY THROUGH THURSDAY...Clear. Highs 98 to 103. Lows 62 to 68. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 63 to 69. Highs 98 to 103. $$ AZZ502-220200- Tohono O'odham Nation- Including Sells 933 AM MST Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .REST OF TODAY...Sunny. Highs 99 to 104. .TONIGHT...Mostly clear. Lows 63 to 71. .SUNDAY...Mostly sunny. Highs 95 to 100. .SUNDAY NIGHT...Partly cloudy. Lows 60 to 66. .MONDAY...Mostly sunny. Highs 92 to 97. .MONDAY NIGHT...Clear. Lows 60 to 66. .TUESDAY...Sunny. Highs 94 to 99. .TUESDAY NIGHT...Clear. Lows 61 to 67. .WEDNESDAY THROUGH THURSDAY...Clear. Highs 96 to 102. Lows 61 to 67. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 62 to 68. Highs 96 to 101. $$ AZZ503-220200- Upper Santa Cruz River Valley/Altar Valley- Including Nogales 933 AM MST Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .REST OF TODAY...Sunny. Highs 95 to 100. .TONIGHT...Clear. Lows 56 to 64. .SUNDAY...Mostly sunny. Highs 91 to 97. .SUNDAY NIGHT...Mostly clear. Lows 53 to 59. .MONDAY...Mostly sunny. Highs 87 to 93. .MONDAY NIGHT...Clear. Lows 53 to 59. .TUESDAY...Sunny. Highs 90 to 95. .TUESDAY NIGHT...Clear. Lows 54 to 60. .WEDNESDAY THROUGH THURSDAY...Clear. Highs 91 to 98. Lows 55 to 61. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 56 to 62. Highs 90 to 96. $$ AZZ504-220200- Tucson Metro Area- Including Tucson, Green Valley, Marana, and Vail 933 AM MST Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .REST OF TODAY...Sunny. Highs 96 to 102. Southeast wind around 5 mph becoming northwest in the afternoon. .TONIGHT...Clear. Lows 61 to 67. Northwest wind 5 to 10 mph becoming south after midnight. .SUNDAY...Mostly sunny. Highs 94 to 100. South wind around 10 mph becoming west 5 to 15 mph in the afternoon. .SUNDAY NIGHT...Mostly clear. Lows 58 to 64. West wind 5 to 15 mph becoming south around 10 mph after midnight. .MONDAY...Mostly sunny. Highs 91 to 97. South wind around 10 mph becoming west in the afternoon. .MONDAY NIGHT...Clear. Lows 58 to 64. .TUESDAY...Sunny. Highs 92 to 98. .TUESDAY NIGHT...Clear. Lows 59 to 65. .WEDNESDAY THROUGH THURSDAY NIGHT...Clear. Highs 94 to 100. Lows 60 to 66. .FRIDAY...Mostly sunny. Highs 93 to 99. $$ AZZ505-220200- South Central Pinal County- Including Picacho Peak State Park 933 AM MST Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .REST OF TODAY...Sunny. Highs 97 to 102. .TONIGHT...Mostly clear. Lows 61 to 69. .SUNDAY...Mostly sunny. Highs 96 to 101. .SUNDAY NIGHT...Partly cloudy. Lows 60 to 66. .MONDAY...Mostly sunny. Highs 93 to 98. .MONDAY NIGHT...Clear. Lows 59 to 65. .TUESDAY...Sunny. Highs 94 to 99. .TUESDAY NIGHT...Clear. Lows 59 to 65. .WEDNESDAY THROUGH THURSDAY NIGHT...Clear. Highs 95 to 101. Lows 60 to 67. .FRIDAY...Mostly sunny. Highs 96 to 101. $$ AZZ506-220200- Southeast Pinal County- Including Mammoth and Oracle 933 AM MST Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .REST OF TODAY...Sunny. Highs 94 to 100. .TONIGHT...Mostly clear. Lows 63 to 68. .SUNDAY...Mostly sunny. Highs 91 to 97. .SUNDAY NIGHT...Partly cloudy. Lows 60 to 65. .MONDAY...Mostly sunny. Highs 89 to 95. .MONDAY NIGHT...Clear. Lows 59 to 64. .TUESDAY...Sunny. Highs 90 to 96. .TUESDAY NIGHT...Clear. Lows 60 to 65. .WEDNESDAY THROUGH THURSDAY NIGHT...Clear. Highs 92 to 98. Lows 61 to 67. .FRIDAY...Mostly sunny. Highs 91 to 97. $$ AZZ507-220200- Upper San Pedro River Valley- Including Sierra Vista and Benson 933 AM MST Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .REST OF TODAY...Sunny. Highs 92 to 97. .TONIGHT...Clear. Lows 55 to 61. .SUNDAY...Mostly sunny. Highs 90 to 95. .SUNDAY NIGHT...Partly cloudy. Lows 53 to 59. .MONDAY...Mostly sunny. Highs 87 to 92. .MONDAY NIGHT...Clear. Lows 52 to 58. .TUESDAY...Sunny. Highs 89 to 94. .TUESDAY NIGHT...Clear. Lows 53 to 59. .WEDNESDAY THROUGH THURSDAY...Clear. Highs 90 to 96. Lows 53 to 59. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 54 to 60. Highs 88 to 93. $$ AZZ508-220200- Eastern Cochise County below 5000 feet- Including Willcox and Douglas 933 AM MST Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .REST OF TODAY...Sunny. Highs 92 to 97. .TONIGHT...Clear. Lows 54 to 60. .SUNDAY...Mostly sunny. Highs 90 to 95. .SUNDAY NIGHT...Partly cloudy. Lows 53 to 59. .MONDAY...Mostly sunny. Highs 87 to 92. .MONDAY NIGHT...Mostly clear. Lows 51 to 57. .TUESDAY...Sunny. Highs 89 to 94. .TUESDAY NIGHT...Clear. Lows 53 to 59. .WEDNESDAY THROUGH THURSDAY...Clear. Highs 90 to 96. Lows 53 to 59. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 54 to 60. Highs 88 to 93. $$ AZZ509-220200- Upper Gila River Valley- Including Clifton and Safford 933 AM MST Sat Mar 21 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .REST OF TODAY...Sunny. Highs 91 to 97. .TONIGHT...Mostly clear. Lows 55 to 63. .SUNDAY...Mostly sunny in the morning then becoming partly cloudy. Highs 89 to 95. .SUNDAY NIGHT...Partly cloudy. Lows 55 to 61. .MONDAY...Mostly sunny. Highs 87 to 93. .MONDAY NIGHT...Clear. Lows 54 to 60. .TUESDAY...Sunny. Highs 88 to 94. .TUESDAY NIGHT...Clear. Lows 55 to 61. .WEDNESDAY THROUGH THURSDAY...Clear. Highs 89 to 96. Lows 55 to 61. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 56 to 62. Highs 87 to 93. $$ AZZ510-220200- White Mountains of Graham and Greenlee Counties- Including Hannagan Meadow 933 AM MST Sat Mar 21 2026 .REST OF TODAY...Sunny. Highs 81 to 89. .TONIGHT...Mostly clear. Lows 49 to 61. .SUNDAY...Mostly sunny in the morning then becoming partly cloudy. Highs 77 to 85. .SUNDAY NIGHT...Partly cloudy. Lows 48 to 58. .MONDAY...Mostly sunny. Highs 75 to 83. .MONDAY NIGHT...Mostly clear. Lows 47 to 57. .TUESDAY...Sunny. Highs 77 to 85. .TUESDAY NIGHT...Clear. Lows 49 to 59. .WEDNESDAY THROUGH THURSDAY...Clear. Highs 79 to 88. Lows 49 to 59. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 49 to 59. Highs 77 to 85. $$ AZZ511-220200- Galiuro and Pinaleno Mountains- Including Mount Graham 933 AM MST Sat Mar 21 2026 .REST OF TODAY...Sunny. Highs 80 to 90. .TONIGHT...Mostly clear. Lows 58 to 64. .SUNDAY...Mostly sunny. Highs 77 to 87. .SUNDAY NIGHT...Partly cloudy. Lows 55 to 61. .MONDAY...Mostly sunny. Highs 75 to 85. .MONDAY NIGHT...Clear. Lows 54 to 60. .TUESDAY...Sunny. Highs 77 to 87. .TUESDAY NIGHT...Clear. Lows 55 to 61. .WEDNESDAY THROUGH THURSDAY...Clear. Highs 78 to 89. Lows 55 to 61. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 56 to 62. Highs 76 to 86. $$ AZZ512-220200- Chiricahua Mountains- Including Chiricahua N.M. 933 AM MST Sat Mar 21 2026 .REST OF TODAY...Sunny. Highs 83 to 91. .TONIGHT...Clear. Lows 56 to 62. .SUNDAY...Mostly sunny. Highs 81 to 89. .SUNDAY NIGHT...Partly cloudy. Lows 54 to 60. .MONDAY...Mostly sunny. Highs 78 to 86. .MONDAY NIGHT...Mostly clear. Lows 52 to 58. .TUESDAY...Sunny. Highs 80 to 88. .TUESDAY NIGHT...Clear. Lows 53 to 59. .WEDNESDAY THROUGH THURSDAY...Clear. Highs 81 to 90. Lows 54 to 60. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 55 to 61. Highs 79 to 87. $$ AZZ513-220200- Dragoon and Mule and Huachuca and Santa Rita Mountains- Including Bisbee, Canelo Hills, and Madera Canyon 933 AM MST Sat Mar 21 2026 .REST OF TODAY...Sunny. Highs 87 to 93. .TONIGHT...Clear. Lows 57 to 63. .SUNDAY...Mostly sunny. Highs 84 to 90. .SUNDAY NIGHT...Mostly clear. Lows 54 to 60. .MONDAY...Mostly sunny. Highs 81 to 87. .MONDAY NIGHT...Clear. Lows 53 to 58. .TUESDAY...Sunny. Highs 83 to 89. .TUESDAY NIGHT...Clear. Lows 55 to 60. .WEDNESDAY THROUGH THURSDAY...Clear. Highs 85 to 91. Lows 56 to 61. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 57 to 62. Highs 83 to 89. $$ AZZ514-220200- Catalina and Rincon Mountains- Including Mount Lemmon and Summerhaven 933 AM MST Sat Mar 21 2026 .REST OF TODAY...Sunny. Highs 80 to 90. .TONIGHT...Mostly clear. Lows 59 to 65. .SUNDAY...Mostly sunny. Highs 77 to 87. .SUNDAY NIGHT...Partly cloudy. Lows 56 to 62. .MONDAY...Mostly sunny. Highs 74 to 84. .MONDAY NIGHT...Clear. Lows 55 to 61. .TUESDAY...Sunny. Highs 75 to 87. .TUESDAY NIGHT...Clear. Lows 56 to 62. .WEDNESDAY THROUGH THURSDAY NIGHT...Clear. Highs 78 to 88. Lows 57 to 64. .FRIDAY...Mostly sunny. Highs 77 to 87. $$ AZZ515-220200- Baboquivari Mountains- Including Kitt Peak 933 AM MST Sat Mar 21 2026 .REST OF TODAY...Sunny. Highs 88 to 94. .TONIGHT...Mostly clear. Lows 64 to 69. .SUNDAY...Mostly sunny. Highs 85 to 91. .SUNDAY NIGHT...Mostly clear. Lows 59 to 64. .MONDAY...Mostly sunny. Highs 82 to 88. .MONDAY NIGHT...Clear. Lows 59 to 64. .TUESDAY...Sunny. Highs 84 to 90. .TUESDAY NIGHT...Clear. Lows 60 to 65. .WEDNESDAY THROUGH THURSDAY...Clear. Highs 86 to 92. Lows 61 to 66. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 62 to 67. Highs 85 to 91. $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson