FPUS55 KTWC 191957 ZFPTWC Zone Forecast Product for Southeast Arizona National Weather Service Tucson AZ 1255 PM MST Tue May 19 2026 AZZ501-200200- Western Pima County- Including Ajo and Organ Pipe Cactus N.M. 1255 PM MST Tue May 19 2026 .REST OF TODAY...Partly cloudy. Highs 86 to 91. .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows 59 to 64. .WEDNESDAY...Partly cloudy in the morning then clearing. Highs 89 to 94. .WEDNESDAY NIGHT...Clear. Lows 59 to 64. .THURSDAY...Sunny. Highs 91 to 96. .THURSDAY NIGHT...Clear. Lows 61 to 66. .FRIDAY...Sunny. Highs 91 to 96. .FRIDAY NIGHT...Clear. Lows 62 to 67. .SATURDAY THROUGH SUNDAY NIGHT...Clear. Highs 91 to 100. Lows 63 to 70. .MEMORIAL DAY...Mostly sunny. Highs 95 to 100. $$ AZZ502-200200- Tohono O'odham Nation- Including Sells 1255 PM MST Tue May 19 2026 .REST OF TODAY...Partly cloudy. Highs 85 to 90. .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows 58 to 64. .WEDNESDAY...Mostly cloudy in the morning then becoming partly cloudy. Highs 86 to 91. .WEDNESDAY NIGHT...Mostly clear. Lows 57 to 63. .THURSDAY...Sunny. Highs 89 to 94. .THURSDAY NIGHT...Clear. Lows 59 to 65. .FRIDAY...Sunny. Highs 89 to 94. .FRIDAY NIGHT...Clear. Lows 60 to 66. .SATURDAY THROUGH SUNDAY...Clear. Highs 89 to 97. Lows 61 to 67. .SUNDAY NIGHT AND MEMORIAL DAY...Mostly clear. Lows 63 to 69. Highs 93 to 98. $$ AZZ503-200200- Upper Santa Cruz River Valley/Altar Valley- Including Nogales 1255 PM MST Tue May 19 2026 .REST OF TODAY...Partly cloudy. Highs 81 to 87. .TONIGHT...Mostly cloudy. Lows 51 to 57. .WEDNESDAY...Partly cloudy. Highs 82 to 88. .WEDNESDAY NIGHT...Partly cloudy. Lows 50 to 56. .THURSDAY...Sunny. Highs 83 to 89. .THURSDAY NIGHT...Clear. Lows 52 to 58. .FRIDAY...Sunny. Highs 83 to 89. .FRIDAY NIGHT...Mostly clear. Lows 52 to 58. .SATURDAY...Sunny. Highs 83 to 89. .SATURDAY NIGHT...Mostly clear. Lows 53 to 59. .SUNDAY...Sunny. Highs 86 to 92. .SUNDAY NIGHT...Mostly clear. Lows 56 to 62. .MEMORIAL DAY...Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs 87 to 93. $$ AZZ504-200200- Tucson Metro Area- Including Tucson, Green Valley, Marana, and Vail 1255 PM MST Tue May 19 2026 .REST OF TODAY...Partly cloudy. Highs 85 to 91. Southwest wind 10 to 15 mph. .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows 57 to 63. West wind 5 to 15 mph becoming southwest around 5 mph after midnight. .WEDNESDAY...Mostly cloudy. Highs 86 to 92. South wind around 10 mph becoming southwest in the afternoon. .WEDNESDAY NIGHT...Partly cloudy. Lows 56 to 62. West wind 10 to 15 mph becoming south after midnight. .THURSDAY...Sunny. Highs 87 to 93. South wind around 5 mph becoming west in the afternoon. .THURSDAY NIGHT...Clear. Lows 58 to 64. .FRIDAY...Sunny. Highs 87 to 93. .FRIDAY NIGHT...Mostly clear. Lows 59 to 65. .SATURDAY...Sunny. Highs 87 to 93. .SATURDAY NIGHT...Mostly clear. Lows 60 to 66. .SUNDAY...Sunny. Highs 90 to 96. .SUNDAY NIGHT...Mostly clear. Lows 62 to 68. .MEMORIAL DAY...Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs 91 to 97. $$ AZZ505-200200- South Central Pinal County- Including Picacho Peak State Park 1255 PM MST Tue May 19 2026 .REST OF TODAY...Partly cloudy. Highs 85 to 90. .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows 59 to 64. .WEDNESDAY...Mostly cloudy. Highs 86 to 91. .WEDNESDAY NIGHT...Mostly clear. Lows 57 to 63. .THURSDAY...Sunny. Highs 88 to 93. .THURSDAY NIGHT...Clear. Lows 60 to 65. .FRIDAY...Sunny. Highs 89 to 94. .FRIDAY NIGHT...Clear. Lows 61 to 66. .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...Partly cloudy. Lows 65 to 70. Highs 93 to 98. $$ AZZ506-200200- Southeast Pinal County- Including Mammoth and Oracle 1255 PM MST Tue May 19 2026 .REST OF TODAY...Mostly sunny. Highs 84 to 90. .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows 59 to 64. .WEDNESDAY...Partly cloudy in the morning then becoming mostly cloudy. Highs 84 to 90. .WEDNESDAY NIGHT...Partly cloudy. Lows 58 to 63. .THURSDAY...Sunny. Highs 85 to 91. .THURSDAY NIGHT...Clear. Lows 59 to 64. .FRIDAY...Sunny. Highs 86 to 92. .FRIDAY NIGHT...Mostly clear. Lows 60 to 65. .SATURDAY...Sunny. Highs 87 to 93. .SATURDAY NIGHT...Mostly clear. Lows 61 to 66. .SUNDAY...Sunny. Highs 89 to 95. .SUNDAY NIGHT...Mostly clear. Lows 63 to 68. .MEMORIAL DAY...Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs 89 to 95. $$ AZZ507-200200- Upper San Pedro River Valley- Including Sierra Vista and Benson 1255 PM MST Tue May 19 2026 .REST OF TODAY...Mostly sunny. Highs 83 to 88. .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows 51 to 57. .WEDNESDAY...Mostly cloudy in the morning then becoming partly cloudy. Highs 82 to 87. .WEDNESDAY NIGHT...Partly cloudy. Lows 50 to 56. .THURSDAY...Sunny. Highs 82 to 87. .THURSDAY NIGHT...Clear. Lows 51 to 57. .FRIDAY...Sunny. Highs 81 to 87. .FRIDAY NIGHT...Mostly clear. Lows 52 to 58. .SATURDAY...Sunny. Highs 82 to 88. .SATURDAY NIGHT...Mostly clear. Lows 53 to 59. .SUNDAY...Sunny. Highs 85 to 91. .SUNDAY NIGHT...Mostly clear. Lows 55 to 61. .MEMORIAL DAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Highs 85 to 91. Chance of precipitation 30 percent. $$ AZZ508-200200- Eastern Cochise County below 5000 feet- Including Willcox and Douglas 1255 PM MST Tue May 19 2026 .REST OF TODAY...Mostly sunny. Highs 85 to 90. .TONIGHT...Mostly cloudy. Lows 52 to 58. .WEDNESDAY...Mostly cloudy in the morning then becoming partly cloudy. Highs 83 to 88. .WEDNESDAY NIGHT...Mostly cloudy. Lows 51 to 57. .THURSDAY...Mostly sunny. Highs 83 to 88. .THURSDAY NIGHT...Mostly clear. Lows 51 to 57. .FRIDAY...Sunny. Highs 82 to 87. .FRIDAY NIGHT...Mostly clear. Lows 53 to 58. .SATURDAY AND SATURDAY NIGHT...Mostly clear. Highs 83 to 88. Lows 54 to 59. .SUNDAY...Sunny. Highs 86 to 91. .SUNDAY NIGHT...Partly cloudy. Lows 57 to 62. .MEMORIAL DAY...Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs 86 to 91. $$ AZZ509-200200- Upper Gila River Valley- Including Clifton and Safford 1255 PM MST Tue May 19 2026 .REST OF TODAY...Sunny. Highs 83 to 91. .TONIGHT...Mostly cloudy. Lows 55 to 61. .WEDNESDAY...Mostly cloudy in the morning then becoming partly cloudy. Highs 82 to 90. .WEDNESDAY NIGHT...Mostly cloudy. Lows 54 to 60. .THURSDAY...Mostly sunny. Highs 82 to 90. .THURSDAY NIGHT...Clear. Lows 54 to 60. .FRIDAY...Sunny. Highs 83 to 91. .FRIDAY NIGHT...Mostly clear. Lows 55 to 61. .SATURDAY...Sunny. Highs 84 to 92. .SATURDAY NIGHT...Mostly clear. Lows 56 to 62. .SUNDAY...Sunny. Highs 87 to 95. .SUNDAY NIGHT...Mostly clear. Lows 59 to 65. .MEMORIAL DAY...Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs 86 to 94. $$ AZZ510-200200- White Mountains of Graham and Greenlee Counties- Including Hannagan Meadow 1255 PM MST Tue May 19 2026 .REST OF TODAY...Sunny. Highs 70 to 80. .TONIGHT...Partly cloudy in the evening then becoming mostly cloudy. Lows 45 to 57. .WEDNESDAY...Mostly cloudy. Highs 69 to 79. .WEDNESDAY NIGHT...Mostly cloudy. Lows 44 to 56. .THURSDAY...Mostly sunny. Highs 70 to 80. .THURSDAY NIGHT...Clear. Lows 44 to 56. .FRIDAY...Sunny. Highs 72 to 82. .FRIDAY NIGHT...Mostly clear. Lows 45 to57. .SATURDAY AND SATURDAY NIGHT...Mostly clear. Highs 73 to 83. Lows 47 to 59. .SUNDAY...Sunny. Highs 76 to 86. .SUNDAY NIGHT...Mostly clear. Lows 49 to 61. .MEMORIAL DAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Highs 75 to 85. Chance of precipitation 30 percent. $$ AZZ511-200200- Galiuro and Pinaleno Mountains- Including Mount Graham 1255 PM MST Tue May 19 2026 .REST OF TODAY...Mostly sunny. Highs 71 to 81. .TONIGHT...Mostly cloudy. Lows 52 to 58. .WEDNESDAY...Mostly cloudy in the morning then becoming partly cloudy. Highs 70 to 80. .WEDNESDAY NIGHT...Mostly cloudy. Lows 51 to 57. .THURSDAY...Mostly sunny. Highs 71 to 81. .THURSDAY NIGHT...Clear. Lows 51 to 57. .FRIDAY...Sunny. Highs 71 to 81. .FRIDAY NIGHT...Mostly clear. Lows 53 to 59. .SATURDAY...Sunny. Highs 73 to 83. .SATURDAY NIGHT...Mostly clear. Lows 54 to 60. .SUNDAY...Sunny. Highs 76 to 86. .SUNDAY NIGHT...Mostly clear. Lows 56 to 62. .MEMORIAL DAY...Partly cloudy. Highs 75 to 85. $$ AZZ512-200200- Chiricahua Mountains- Including Chiricahua N.M. 1255 PM MST Tue May 19 2026 .REST OF TODAY...Breezy, sunny. Highs 75 to 83. Southwest wind 15 to 25 mph. .TONIGHT...Mostly cloudy. Lows 51 to 57. .WEDNESDAY...Mostly cloudy in the morning then becoming partly cloudy. Highs 74 to 82. .WEDNESDAY NIGHT...Mostly cloudy. Lows 50 to 56. .THURSDAY...Mostly sunny. Highs 73 to 81. .THURSDAY NIGHT...Mostly clear. Lows 50 to 56. .FRIDAY...Sunny. Highs 73 to 81. .FRIDAY NIGHT...Mostly clear. Lows 51 to 57. .SATURDAY THROUGH SUNDAY...Mostly clear. Highs 74 to 85. Lows 52 to 58. .SUNDAY NIGHT...Partly cloudy. Lows 54 to 60. .MEMORIAL DAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Highs 78 to 86. Chance of precipitation 30 percent. $$ AZZ513-200200- Dragoon and Mule and Huachuca and Santa Rita Mountains- Including Bisbee, Canelo Hills, and Madera Canyon 1255 PM MST Tue May 19 2026 .REST OF TODAY...Mostly sunny. Highs 76 to 84. .TONIGHT...Mostly cloudy. Lows 50 to 56. .WEDNESDAY...Mostly cloudy in the morning then becoming partly cloudy. Highs 76 to 82. .WEDNESDAY NIGHT...Partly cloudy. Lows 51 to 56. .THURSDAY...Sunny. Highs 76 to 82. .THURSDAY NIGHT...Clear. Lows 52 to 57. .FRIDAY...Sunny. Highs 76 to 82. .FRIDAY NIGHT...Mostly clear. Lows 52 to 57. .SATURDAY...Sunny. Highs 77 to 83. .SATURDAY NIGHT...Mostly clear. Lows 53 to 58. .SUNDAY...Sunny. Highs 80 to 86. .SUNDAY NIGHT...Mostly clear. Lows 56 to 61. .MEMORIAL DAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Highs 80 to 86. Chance of precipitation 30 percent. $$ AZZ514-200200- Catalina and Rincon Mountains- Including Mount Lemmon and Summerhaven 1255 PM MST Tue May 19 2026 .REST OF TODAY...Partly cloudy. Highs 69 to 81. .TONIGHT...Mostly cloudy. Lows 52 to 58. .WEDNESDAY...Partly cloudy in the morning then becoming mostly cloudy. Highs 68 to 80. .WEDNESDAY NIGHT...Partly cloudy. Lows 51 to 57. .THURSDAY...Sunny. Highs 69 to 81. .THURSDAY NIGHT...Clear. Lows 52 to 58. .FRIDAY...Sunny. Highs 69 to 81. .FRIDAY NIGHT...Mostly clear. Lows 53 to 59. .SATURDAY...Sunny. Highs 72 to 84. .SATURDAY NIGHT...Mostly clear. Lows 54 to 60. .SUNDAY...Sunny. Highs 74 to 86. .SUNDAY NIGHT...Mostly clear. Lows 57 to 63. .MEMORIAL DAY...Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs 75 to 87. $$ AZZ515-200200- Baboquivari Mountains- Including Kitt Peak 1255 PM MST Tue May 19 2026 .REST OF TODAY...Mostly cloudy. Highs 74 to 80. .TONIGHT...Mostly cloudy. Lows 55 to 60. .WEDNESDAY...Partly cloudy in the morning then becoming mostly cloudy. Highs 75 to 81. .WEDNESDAY NIGHT...Partly cloudy. Lows 54 to 59. .THURSDAY...Sunny. Highs 77 to 83. .THURSDAY NIGHT...Clear. Lows 56 to 61. .FRIDAY...Sunny. Highs 78 to 84. .FRIDAY NIGHT...Clear. Lows 57 to 62. .SATURDAY...Sunny. Highs 80 to 86. .SATURDAY NIGHT...Mostly clear. Lows 58 to 63. .SUNDAY...Sunny. Highs 82 to 88. .SUNDAY NIGHT...Mostly clear. Lows 60 to 65. .MEMORIAL DAY...Partly cloudy with a 10 percent chance of showers. Highs 83 to 89. $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson