FPUS55 KTWC 190913 ZFPTWC Zone Forecast Product for Southeast Arizona National Weather Service Tucson AZ 212 AM MST Tue May 19 2026 AZZ501-200200- Western Pima County- Including Ajo and Organ Pipe Cactus N.M. 212 AM MST Tue May 19 2026 .TODAY...Mostly sunny in the morning then becoming partly cloudy. Highs 86 to 91. .TONIGHT...Mostly cloudy. Lows 60 to 65. .WEDNESDAY...Partly cloudy. Highs 89 to 94. .WEDNESDAY NIGHT...Clear. Lows 59 to 64. .THURSDAY...Sunny. Highs 91 to 96. .THURSDAY NIGHT...Mostly clear. Lows 61 to 66. .FRIDAY...Sunny. Highs 92 to 97. .FRIDAY NIGHT THROUGH SUNDAY NIGHT...Clear. Lows 62 to 69. Highs 92 to 99. .MEMORIAL DAY...Mostly sunny. Highs 95 to 100. $$ AZZ502-200200- Tohono O'odham Nation- Including Sells 212 AM MST Tue May 19 2026 .TODAY...Sunny in the morning then becoming partly cloudy. Highs 85 to 90. .TONIGHT...Mostly cloudy. Lows 58 to 64. .WEDNESDAY...Mostly cloudy. Highs 87 to 92. .WEDNESDAY NIGHT...Mostly clear. Lows 57 to 63. .THURSDAY...Sunny. Highs 89 to 94. .THURSDAY NIGHT...Mostly clear. Lows 59 to 65. .FRIDAY...Sunny. Highs 90 to 95. .FRIDAY NIGHT...Mostly clear. Lows 60 to 66. .SATURDAY...Sunny. Highs 90 to 95. .SATURDAY NIGHT...Mostly clear. Lows 61 to 67. .SUNDAY...Sunny. Highs 92 to 97. .SUNDAY NIGHT AND MEMORIAL DAY...Mostly clear. Lows 63 to 69. Highs 93 to 98. $$ AZZ503-200200- Upper Santa Cruz River Valley/Altar Valley- Including Nogales 212 AM MST Tue May 19 2026 .TODAY...Sunny in the morning then becoming partly cloudy. Highs 81 to 87. .TONIGHT...Mostly cloudy. Lows 51 to 57. .WEDNESDAY...Mostly cloudy in the morning then becoming partly cloudy. Highs 82 to 88. .WEDNESDAY NIGHT...Mostly clear. Lows 50 to 56. .THURSDAY...Sunny. Highs 83 to 89. .THURSDAY NIGHT...Mostly clear. Lows 52 to 58. .FRIDAY...Sunny. Highs 84 to 90. .FRIDAY NIGHT...Mostly clear. Lows 53 to 59. .SATURDAY...Sunny. Highs 83 to 89. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Mostly clear. Lows 53 to 61. Highs 85 to 93. $$ AZZ504-200200- Tucson Metro Area- Including Tucson, Green Valley, Marana, and Vail 212 AM MST Tue May 19 2026 .TODAY...Mostly sunny. Highs 85 to 91. South wind around 10 mph becoming southwest in the afternoon. .TONIGHT...Partly cloudy in the evening then becoming mostly cloudy. Lows 58 to 64. West wind 5 to 15 mph becoming southwest around 5 mph after midnight. .WEDNESDAY...Mostly cloudy. Highs 86 to 92. South wind around 10 mph becoming southwest in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows 57 to 63. West wind 10 to 15 mph becoming south after midnight. .THURSDAY...Sunny. Highs 87 to 93. South wind around 5 mph becoming west in the afternoon. .THURSDAY NIGHT...Mostly clear. Lows 59 to 65. .FRIDAY...Sunny. Highs 88 to 94. .FRIDAY NIGHT...Mostly clear. Lows 59 to 65. .SATURDAY...Sunny. Highs 87 to 93. .SATURDAY NIGHT...Mostly clear. Lows 60 to 66. .SUNDAY...Sunny. Highs 89 to 95. .SUNDAY NIGHT AND MEMORIAL DAY...Mostly clear. Lows 62 to 68. Highs 90 to 96. $$ AZZ505-200200- South Central Pinal County- Including Picacho Peak State Park 212 AM MST Tue May 19 2026 .TODAY...Mostly sunny. Highs 85 to 90. .TONIGHT...Mostly cloudy. Lows 59 to 65. .WEDNESDAY...Mostly cloudy. Highs 87 to 92. .WEDNESDAY NIGHT...Mostly clear. Lows 58 to 64. .THURSDAY...Sunny. Highs 88 to 93. .THURSDAY NIGHT...Mostly clear. Lows 61 to 66. .FRIDAY...Sunny. Highs 90 to 95. .FRIDAY NIGHT...Mostly clear. Lows 62 to 67. .SATURDAY...Sunny. Highs 90 to 95. .SATURDAY NIGHT...Mostly clear. Lows 63 to 68. .SUNDAY...Sunny. Highs 92 to 97. .SUNDAY NIGHT AND MEMORIAL DAY...Mostly clear. Lows 65 to 70. Highs 93 to 98. $$ AZZ506-200200- Southeast Pinal County- Including Mammoth and Oracle 212 AM MST Tue May 19 2026 .TODAY...Mostly sunny. Highs 84 to 90. .TONIGHT...Mostly cloudy. Lows 59 to 64. .WEDNESDAY...Mostly cloudy. Highs 84 to 90. .WEDNESDAY NIGHT...Partly cloudy. Lows 58 to 63. .THURSDAY...Sunny. Highs 85 to 91. .THURSDAY NIGHT...Mostly clear. Lows 60 to 65. .FRIDAY...Sunny. Highs 86 to 92. .FRIDAY NIGHT...Mostly clear. Lows 60 to 65. .SATURDAY...Sunny. Highs 87 to 93. .SATURDAY NIGHT...Mostly clear. Lows 61 to 66. .SUNDAY...Sunny. Highs 89 to 95. .SUNDAY NIGHT AND MEMORIAL DAY...Mostly clear. Lows 63 to 68. Highs 90 to 96. $$ AZZ507-200200- Upper San Pedro River Valley- Including Sierra Vista and Benson 212 AM MST Tue May 19 2026 .TODAY...Mostly sunny. Highs 83 to 88. .TONIGHT...Partly cloudy. Lows 51 to 57. .WEDNESDAY...Mostly cloudy in the morning then becoming partly cloudy. Highs 83 to 88. .WEDNESDAY NIGHT...Partly cloudy. Lows 50 to 56. .THURSDAY...Mostly sunny. Highs 83 to 88. .THURSDAY NIGHT...Mostly clear. Lows 51 to 57. .FRIDAY...Mostly sunny. Highs 82 to 88. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Mostly clear. Lows 52 to 59. Highs 81 to 87. .SUNDAY...Sunny. Highs 83 to 89. .SUNDAY NIGHT AND MEMORIAL DAY...Mostly clear. Lows 55 to 61. Highs 84 to 90. $$ AZZ508-200200- Eastern Cochise County below 5000 feet- Including Willcox and Douglas 212 AM MST Tue May 19 2026 .TODAY...Sunny. Highs 85 to 90. .TONIGHT...Partly cloudy in the evening then becoming mostly cloudy. Lows 51 to 57. .WEDNESDAY...Mostly cloudy in the morning then becoming partly cloudy. Highs 83 to 88. .WEDNESDAY NIGHT...Partly cloudy. Lows 50 to 56. .THURSDAY...Mostly sunny. Highs 83 to 88. .THURSDAY NIGHT...Mostly clear. Lows 51 to 57. .FRIDAY...Mostly sunny. Highs 83 to 88. .FRIDAY NIGHT...Mostly clear. Lows 53 to 58. .SATURDAY...Mostly sunny with a 10 percent chance of showers and thunderstorms. Highs 83 to 88. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows 53 to 59. Highs 85 to 90. .SUNDAY NIGHT...Partly cloudy. Lows 56 to 61. .MEMORIAL DAY...Mostly sunny with a 10 percent chance of showers and thunderstorms. Highs 86 to 91. $$ AZZ509-200200- Upper Gila River Valley- Including Clifton and Safford 212 AM MST Tue May 19 2026 .TODAY...Sunny. Highs 83 to 91. .TONIGHT...Mostly cloudy. Lows 55 to 61. .WEDNESDAY...Mostly cloudy. Highs 82 to 90. .WEDNESDAY NIGHT...Partly cloudy. Lows 54 to 60. .THURSDAY...Mostly sunny. Highs 82 to 90. .THURSDAY NIGHT...Mostly clear. Lows 54 to 60. .FRIDAY...Mostly sunny. Highs 83 to 91. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Mostly clear. Lows 55 to 63. Highs 84 to 92. .SUNDAY...Sunny. Highs 86 to 94. .SUNDAY NIGHT...Mostly clear. Lows 57 to 65. .MEMORIAL DAY...Mostly sunny with a 10 percent chance of showers and thunderstorms. Highs 86 to 94. $$ AZZ510-200200- White Mountains of Graham and Greenlee Counties- Including Hannagan Meadow 212 AM MST Tue May 19 2026 .TODAY...Sunny. Highs 70 to 80. .TONIGHT...Partly cloudy in the evening then becoming mostly cloudy. Lows 46 to 58. .WEDNESDAY...Mostly cloudy. Highs 70 to 80. .WEDNESDAY NIGHT...Partly cloudy. Lows 44 to 56. .THURSDAY...Mostly sunny. Highs 70 to 80. .THURSDAY NIGHT...Mostly clear. Lows 44 to 56. .FRIDAY...Mostly sunny. Highs 72 to 82. .FRIDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows 46 to 58. Highs 73 to 85. .SUNDAY NIGHT...Partly cloudy. Lows 49 to 61. .MEMORIAL DAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Highs 75 to 85. Chance of precipitation 30 percent. $$ AZZ511-200200- Galiuro and Pinaleno Mountains- Including Mount Graham 212 AM MST Tue May 19 2026 .TODAY...Mostly sunny. Highs 71 to 81. .TONIGHT...Partly cloudy in the evening then becoming mostly cloudy. Lows 52 to 58. .WEDNESDAY...Mostly cloudy. Highs 71 to 81. .WEDNESDAY NIGHT...Partly cloudy. Lows 51 to 57. .THURSDAY...Mostly sunny. Highs 71 to 81. .THURSDAY NIGHT...Mostly clear. Lows 52 to 58. .FRIDAY...Mostly sunny. Highs 72 to 82. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Mostly clear. Lows 53 to 60. Highs 73 to 83. .SUNDAY...Sunny. Highs 75 to 85. .SUNDAY NIGHT...Mostly clear. Lows 56 to 62. .MEMORIAL DAY...Mostly sunny with a 10 percent chance of showers and thunderstorms. Highs 75 to 85. $$ AZZ512-200200- Chiricahua Mountains- Including Chiricahua N.M. 212 AM MST Tue May 19 2026 .TODAY...Sunny. Highs 75 to 83. .TONIGHT...Partly cloudy in the evening then becoming mostly cloudy. Lows 51 to 57. .WEDNESDAY...Mostly cloudy in the morning then becoming partly cloudy. Highs 74 to 82. .WEDNESDAY NIGHT...Partly cloudy. Lows 49 to 55. .THURSDAY...Mostly sunny. Highs 73 to 81. .THURSDAY NIGHT...Mostly clear. Lows 50 to 56. .FRIDAY...Mostly sunny. Highs 73 to 81. .FRIDAY NIGHT...Mostly clear. Lows 51 to 57. .SATURDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Highs 74 to 82. Chance of precipitation 30 percent. .SATURDAY NIGHT AND SUNDAY...Partly cloudy. Lows 51 to 57. Highs 76 to 84. .SUNDAY NIGHT...Partly cloudy. Lows 53 to 59. .MEMORIAL DAY...Mostly sunny. Highs 77 to 85. $$ AZZ513-200200- Dragoon and Mule and Huachuca and Santa Rita Mountains- Including Bisbee, Canelo Hills, and Madera Canyon 212 AM MST Tue May 19 2026 .TODAY...Mostly sunny. Highs 76 to 84. Gusts up to 35 mph in the afternoon. .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows 50 to 56. .WEDNESDAY...Mostly cloudy in the morning then becoming partly cloudy. Highs 76 to 82. .WEDNESDAY NIGHT...Mostly clear. Lows 51 to 56. .THURSDAY...Mostly sunny. Highs 76 to 82. .THURSDAY NIGHT...Mostly clear. Lows 52 to 57. .FRIDAY...Sunny. Highs 76 to 82. .FRIDAY NIGHT THROUGH MEMORIAL DAY...Partly cloudy. Lows 53 to 60. Highs 76 to 86. $$ AZZ514-200200- Catalina and Rincon Mountains- Including Mount Lemmon and Summerhaven 212 AM MST Tue May 19 2026 .TODAY...Mostly sunny. Highs 69 to 81. .TONIGHT...Mostly cloudy. Lows 52 to 58. .WEDNESDAY...Mostly cloudy. Highs 69 to 81. .WEDNESDAY NIGHT...Partly cloudy. Lows 51 to 57. .THURSDAY...Sunny. Highs 69 to 81. .THURSDAY NIGHT...Mostly clear. Lows 53 to 59. .FRIDAY...Sunny. Highs 70 to 82. .FRIDAY NIGHT...Mostly clear. Lows 53 to 59. .SATURDAY...Sunny. Highs 72 to 84. .SATURDAY NIGHT...Mostly clear. Lows 54 to 60. .SUNDAY...Sunny. Highs 74 to 86. .SUNDAY NIGHT AND MEMORIAL DAY...Mostly clear. A 10 percent chance of showers and thunderstorms. Lows 57 to 63. Highs 75 to 87. $$ AZZ515-200200- Baboquivari Mountains- Including Kitt Peak 212 AM MST Tue May 19 2026 .TODAY...Sunny in the morning then becoming partly cloudy. Highs 74 to 80. .TONIGHT...Mostly cloudy. Lows 55 to 60. .WEDNESDAY...Mostly cloudy in the morning then becoming partly cloudy. Highs 76 to 82. .WEDNESDAY NIGHT...Mostly clear. Lows 54 to 59. .THURSDAY...Sunny. Highs 78 to 84. .THURSDAY NIGHT...Mostly clear. Lows 56 to 61. .FRIDAY...Sunny. Highs 78 to 84. .FRIDAY NIGHT...Clear. Lows 57 to 62. .SATURDAY AND SATURDAY NIGHT...Mostly clear. Highs 80 to 86. Lows 58 to 63. .SUNDAY...Sunny. Highs 81 to 87. .SUNDAY NIGHT AND MEMORIAL DAY...Mostly clear. Lows 60 to 65. Highs 83 to 89. $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson