FPUS55 KTWC 202107 ZFPTWC Zone Forecast Product for Southeast Arizona National Weather Service Tucson AZ 207 PM MST Fri Mar 20 2026 AZZ501-211400- Western Pima County- Including Ajo and Organ Pipe Cactus N.M. 207 PM MST Fri Mar 20 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TONIGHT...Mostly clear. Lows 66 to 72. .SATURDAY...Sunny. Highs 102 to 107. .SATURDAY NIGHT...Mostly clear. Lows 64 to 70. .SUNDAY...Mostly sunny. Highs 97 to 102. .SUNDAY NIGHT...Partly cloudy. Lows 60 to 66. .MONDAY...Mostly sunny. Highs 92 to 97. .MONDAY NIGHT...Clear. Lows 57 to 65. .TUESDAY...Sunny. Highs 96 to 101. .TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Clear. Lows 60 to 68. Highs 99 to 104. .THURSDAY...Partly cloudy. Highs 99 to 104. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 62 to 68. Highs 98 to 103. $$ AZZ502-211400- Tohono O'odham Nation- Including Sells 207 PM MST Fri Mar 20 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 64 to 72. .SATURDAY...Sunny. Highs 99 to 104. .SATURDAY NIGHT...Mostly clear. Lows 64 to 70. .SUNDAY...Mostly sunny. Highs 96 to 101. .SUNDAY NIGHT...Partly cloudy. Lows 60 to 66. .MONDAY...Mostly sunny. Highs 93 to 98. .MONDAY NIGHT...Clear. Lows 59 to 67. .TUESDAY...Sunny. Highs 95 to 100. .TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Clear. Lows 60 to 68. Highs 97 to 102. .THURSDAY THROUGH FRIDAY...Mostly clear. Highs 96 to 102. Lows 62 to 68. $$ AZZ503-211400- Upper Santa Cruz River Valley/Altar Valley- Including Nogales 207 PM MST Fri Mar 20 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 57 to 65. .SATURDAY...Sunny. Highs 95 to 100. .SATURDAY NIGHT...Clear. Lows 57 to 63. .SUNDAY...Mostly sunny. Highs 91 to 97. .SUNDAY NIGHT...Partly cloudy. Lows 54 to 60. .MONDAY...Mostly sunny. Highs 88 to 94. .MONDAY NIGHT...Clear. Lows 54 to 60. .TUESDAY...Sunny. Highs 91 to 96. .TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Clear. Lows 55 to 61. Highs 94 to 99. .THURSDAY THROUGH FRIDAY...Mostly clear. Highs 90 to 98. Lows 56 to 62. $$ AZZ504-211400- Tucson Metro Area- Including Tucson, Green Valley, Marana, and Vail 207 PM MST Fri Mar 20 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 62 to 68. Northwest wind 5 to 10 mph becoming southeast after midnight. .SATURDAY...Sunny. Highs 96 to 102. Southeast wind around 5 mph becoming northwest in the afternoon. .SATURDAY NIGHT...Clear. Lows 61 to 67. Northwest wind 5 to 10 mph becoming south after midnight. .SUNDAY...Mostly sunny. Highs 94 to 100. South wind around 10 mph becoming west 5 to 15 mph in the afternoon. .SUNDAY NIGHT...Partly cloudy. Lows 58 to 64. West wind 5 to 15 mph becoming south around 10 mph after midnight. .MONDAY...Mostly sunny. Highs 91 to 97. .MONDAY NIGHT...Clear. Lows 58 to 64. .TUESDAY...Sunny. Highs 93 to 99. .TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Clear. Lows 59 to 66. Highs 96 to 102. .THURSDAY THROUGH FRIDAY...Mostly clear. Highs 92 to 101. Lows 60 to 66. $$ AZZ505-211400- South Central Pinal County- Including Picacho Peak State Park 207 PM MST Fri Mar 20 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 61 to 69. .SATURDAY...Sunny. Highs 98 to 103. .SATURDAY NIGHT...Mostly clear. Lows 61 to 69. .SUNDAY...Mostly sunny. Highs 96 to 101. .SUNDAY NIGHT...Partly cloudy. Lows 59 to 67. .MONDAY...Mostly sunny. Highs 93 to 98. .MONDAY NIGHT...Clear. Lows 59 to 65. .TUESDAY...Sunny. Highs 94 to 99. .TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Clear. Lows 60 to 66. Highs 96 to 101. .THURSDAY THROUGH FRIDAY...Mostly clear. Highs 95 to 101. Lows 61 to 67. $$ AZZ506-211400- Southeast Pinal County- Including Mammoth and Oracle 207 PM MST Fri Mar 20 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 63 to 68. .SATURDAY...Sunny. Highs 94 to 100. .SATURDAY NIGHT...Clear. Lows 63 to 68. .SUNDAY...Mostly sunny. Highs 92 to 98. .SUNDAY NIGHT...Partly cloudy. Lows 61 to 66. .MONDAY...Mostly sunny. Highs 89 to 95. .MONDAY NIGHT...Clear. Lows 59 to 64. .TUESDAY...Sunny. Highs 91 to 97. .TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Clear. Lows 60 to 66. Highs 93 to 99. .THURSDAY THROUGH FRIDAY...Mostly clear. Highs 90 to 98. Lows 61 to 66. $$ AZZ507-211400- Upper San Pedro River Valley- Including Sierra Vista and Benson 207 PM MST Fri Mar 20 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 55 to 63. .SATURDAY...Sunny. Highs 92 to 97. .SATURDAY NIGHT...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 THROUGH WEDNESDAY NIGHT...Clear. Lows 53 to 60. Highs 92 to 97. .THURSDAY THROUGH FRIDAY...Mostly clear. Highs 87 to 95. Lows 53 to 59. $$ AZZ508-211400- Eastern Cochise County below 5000 feet- Including Willcox and Douglas 207 PM MST Fri Mar 20 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 54 to 62. .SATURDAY...Sunny. Highs 92 to 97. .SATURDAY NIGHT...Clear. Lows 54 to 60. .SUNDAY...Mostly sunny. Highs 91 to 96. .SUNDAY NIGHT...Partly cloudy. Lows 53 to 59. .MONDAY...Mostly sunny. Highs 87 to 92. .MONDAY NIGHT...Clear. Lows 52 to 58. .TUESDAY...Sunny. Highs 89 to 94. .TUESDAY NIGHT THROUGH THURSDAY...Clear. Lows 53 to 60. Highs 91 to 97. .THURSDAY NIGHT...Mostly clear. Lows 53 to 59. .FRIDAY...Partly cloudy. Highs 85 to 90. $$ AZZ509-211400- Upper Gila River Valley- Including Clifton and Safford 207 PM MST Fri Mar 20 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY... .TONIGHT...Clear. Lows 56 to 64. .SATURDAY...Sunny. Highs 91 to 97. .SATURDAY NIGHT...Clear. Lows 56 to 62. .SUNDAY...Mostly sunny. Highs 89 to 95. .SUNDAY NIGHT...Partly cloudy. Lows 56 to 62. .MONDAY...Mostly sunny. Highs 86 to 92. .MONDAY NIGHT...Clear. Lows 54 to 60. .TUESDAY...Sunny. Highs 88 to 94. .TUESDAY NIGHT THROUGH THURSDAY...Clear. Lows 56 to 62. Highs 90 to 97. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 55 to 61. Highs 85 to 91. $$ AZZ510-211400- White Mountains of Graham and Greenlee Counties- Including Hannagan Meadow 207 PM MST Fri Mar 20 2026 .TONIGHT...Clear. Lows 51 to 61. .SATURDAY...Sunny. Highs 81 to 89. .SATURDAY NIGHT...Mostly clear. Lows 49 to 61. .SUNDAY...Mostly sunny. Highs 77 to 85. .SUNDAY NIGHT...Partly cloudy. Lows 49 to 59. .MONDAY...Mostly sunny. Highs 75 to 83. .MONDAY NIGHT...Mostly clear. Lows 45 to 57. .TUESDAY...Mostly sunny. Highs 78 to 86. .TUESDAY NIGHT THROUGH THURSDAY...Clear. Lows 49 to 59. Highs 79 to 89. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 47 to 57. Highs 75 to 83. $$ AZZ511-211400- Galiuro and Pinaleno Mountains- Including Mount Graham 207 PM MST Fri Mar 20 2026 .TONIGHT...Clear. Lows 59 to 65. .SATURDAY...Sunny. Highs 80 to 90. .SATURDAY NIGHT...Clear. Lows 58 to 64. .SUNDAY...Mostly sunny. Highs 78 to 88. .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 THROUGH WEDNESDAY NIGHT...Clear. Lows 56 to 62. Highs 80 to 90. .THURSDAY THROUGH FRIDAY...Mostly clear. Highs 74 to 88. Lows 55 to 61. $$ AZZ512-211400- Chiricahua Mountains- Including Chiricahua N.M. 207 PM MST Fri Mar 20 2026 .TONIGHT...Clear. Lows 57 to 63. .SATURDAY...Sunny. Highs 84 to 92. .SATURDAY NIGHT...Clear. Lows 56 to 62. .SUNDAY...Mostly sunny. Highs 81 to 89. .SUNDAY NIGHT...Partly cloudy. Lows 54 to 60. .MONDAY...Mostly sunny. Highs 78 to 86. .MONDAY NIGHT...Clear. Lows 52 to 58. .TUESDAY...Sunny. Highs 80 to 88. .TUESDAY NIGHT THROUGH THURSDAY...Clear. Lows 53 to 60. Highs 82 to 91. .THURSDAY NIGHT...Mostly clear. Lows 54 to 60. .FRIDAY...Partly cloudy. Highs 77 to 85. $$ AZZ513-211400- Dragoon and Mule and Huachuca and Santa Rita Mountains- Including Bisbee, Canelo Hills, and Madera Canyon 207 PM MST Fri Mar 20 2026 .TONIGHT...Clear. Lows 58 to 64. .SATURDAY...Sunny. Highs 87 to 93. .SATURDAY NIGHT...Clear. Lows 57 to 63. .SUNDAY...Mostly sunny. Highs 85 to 91. .SUNDAY NIGHT...Partly cloudy. Lows 55 to 60. .MONDAY...Mostly sunny. Highs 82 to 88. .MONDAY NIGHT...Clear. Lows 54 to 59. .TUESDAY...Sunny. Highs 84 to 90. .TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Clear. Lows 56 to 61. Highs 86 to 92. .THURSDAY...Mostly sunny. Highs 85 to 91. .THURSDAY NIGHT...Partly cloudy. Lows 56 to 61. .FRIDAY...Mostly sunny. Highs 81 to 87. $$ AZZ514-211400- Catalina and Rincon Mountains- Including Mount Lemmon and Summerhaven 207 PM MST Fri Mar 20 2026 .TONIGHT...Clear. Lows 61 to 67. .SATURDAY...Sunny. Highs 80 to 90. .SATURDAY NIGHT...Clear. Lows 59 to 65. .SUNDAY...Mostly sunny. Highs 77 to 87. .SUNDAY NIGHT...Partly cloudy. Lows 56 to 62. .MONDAY...Mostly sunny. Highs 74 to 86. .MONDAY NIGHT...Clear. Lows 56 to 62. .TUESDAY...Sunny. Highs 76 to 88. .TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Clear. Lows 57 to 63. Highs 79 to 89. .THURSDAY THROUGH FRIDAY...Mostly clear. Highs 75 to 88. Lows 57 to 63. $$ AZZ515-211400- Baboquivari Mountains- Including Kitt Peak 207 PM MST Fri Mar 20 2026 .TONIGHT...Clear. Lows 65 to 70. .SATURDAY...Sunny. Highs 89 to 95. .SATURDAY NIGHT...Clear. Lows 64 to 69. .SUNDAY...Mostly sunny. Highs 85 to 91. .SUNDAY NIGHT...Partly cloudy. Lows 60 to 65. .MONDAY...Mostly sunny. Highs 82 to 88. .MONDAY NIGHT...Clear. Lows 59 to 64. .TUESDAY...Sunny. Highs 84 to 90. .TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Clear. Lows 61 to 66. Highs 87 to 93. .THURSDAY THROUGH FRIDAY...Mostly clear. Highs 85 to 92. Lows 61 to 66. $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson