Zone Forecast Product
Issued by NWS Tucson, AZ
Issued by NWS Tucson, AZ
877 FPUS55 KTWC 072020 ZFPTWC Zone Forecast Product for Southeast Arizona National Weather Service Tucson AZ 119 PM MST Tue Oct 7 2025 AZZ501-080200- Western Pima County- Including Ajo and Organ Pipe Cactus N.M. 119 PM MST Tue Oct 7 2025 .REST OF TODAY...Sunny. Highs 93 to 98. .TONIGHT...Mostly clear. Lows 65 to 70. .WEDNESDAY...Mostly sunny. Highs 97 to 102. .WEDNESDAY NIGHT...Mostly cloudy with a 10 percent chance of showers and thunderstorms. Lows 74 to 79. .THURSDAY...Mostly cloudy with a 20 percent chance of showers and thunderstorms. Highs 93 to 98. .THURSDAY NIGHT...Mostly cloudy with a 40 percent chance of showers and thunderstorms. Lows 74 to 79. .FRIDAY...Mostly cloudy with chance of showers and slight chance of thunderstorms. Highs 92 to 97. Chance of precipitation 30 percent. .FRIDAY NIGHT...Mostly cloudy with a 30 percent chance of showers and thunderstorms. Lows 72 to 77. .SATURDAY AND SATURDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Highs 86 to 91. Lows 69 to 74. Chance of precipitation 40 percent. .SUNDAY...Mostly cloudy with chance of showers and slight chance of thunderstorms. Highs 84 to 89. Chance of precipitation 30 percent. .SUNDAY NIGHT AND COLUMBUS DAY...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 66 to 71. Highs 84 to 89. $$ AZZ502-080200- Tohono O`odham Nation- Including Sells 119 PM MST Tue Oct 7 2025 .REST OF TODAY...Sunny. Highs 92 to 97. .TONIGHT...Mostly clear. Lows 65 to 70. .WEDNESDAY...Mostly sunny in the morning then becoming partly cloudy. Highs 94 to 99. .WEDNESDAY NIGHT...Mostly cloudy with a 10 percent chance of showers and thunderstorms. Lows 72 to 77. .THURSDAY...Mostly cloudy with a 10 percent chance of showers and thunderstorms. Highs 90 to 95. .THURSDAY NIGHT...Mostly cloudy with a 40 percent chance of showers and thunderstorms. Lows 71 to 76. .FRIDAY...Mostly cloudy with chance of showers and slight chance of thunderstorms. Highs 92 to 97. Chance of precipitation 30 percent. .FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of showers and thunderstorms. Lows 69 to 74. .SATURDAY AND SATURDAY NIGHT...Mostly cloudy with a 50 percent chance of showers and thunderstorms. Highs 85 to 90. Lows 67 to 72. .SUNDAY...Mostly cloudy with a 30 percent chance of showers and thunderstorms. Highs 81 to 86. .SUNDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 64 to 69. Chance of precipitation 30 percent. .COLUMBUS DAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Highs 81 to 86. Chance of precipitation 30 percent. $$ AZZ503-080200- Upper Santa Cruz River Valley/Altar Valley- Including Nogales 119 PM MST Tue Oct 7 2025 .REST OF TODAY...Mostly sunny. Highs 87 to 93. .TONIGHT...Mostly clear. Lows 60 to 65. .WEDNESDAY...Partly cloudy in the morning, then mostly cloudy with a 10 percent chance of showers and thunderstorms in the afternoon. Highs 87 to 93. .WEDNESDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 65 to 70. Chance of precipitation 30 percent. .THURSDAY...Mostly cloudy with a 10 percent chance of showers and thunderstorms. Highs 85 to 91. .THURSDAY NIGHT...Mostly cloudy with a 30 percent chance of showers and thunderstorms. Lows 63 to 68. .FRIDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Highs 87 to 93. Chance of precipitation 30 percent. .FRIDAY NIGHT...Mostly cloudy with a 30 percent chance of showers and thunderstorms. Lows 63 to 68. .SATURDAY...Mostly cloudy with a 50 percent chance of showers and thunderstorms. Highs 83 to 88. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 59 to 66. Highs 75 to 80. Chance of precipitation 50 percent. .COLUMBUS DAY...Mostly cloudy with a 40 percent chance of showers and thunderstorms. Highs 74 to 80. $$ AZZ504-080200- Tucson Metro Area- Including Tucson, Green Valley, Marana, and Vail 119 PM MST Tue Oct 7 2025 .REST OF TODAY...Mostly sunny. Highs 91 to 97. Southwest wind around 10 mph. .TONIGHT...Mostly clear. Lows 65 to 70. Southwest wind around 10 mph becoming southeast after midnight. .WEDNESDAY...Mostly sunny in the morning, then partly cloudy with a 10 percent chance of showers and thunderstorms in the afternoon. Highs 91 to 97. Southeast wind 5 to 15 mph. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of showers and thunderstorms. Lows 69 to 75. Southeast wind 5 to 15 mph. .THURSDAY...Mostly cloudy with a 10 percent chance of showers and thunderstorms. Highs 89 to 95. East wind 5 to 15 mph. .THURSDAY NIGHT...Mostly cloudy with a 30 percent chance of showers and thunderstorms. Lows 68 to 74. .FRIDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Highs 91 to 97. Chance of precipitation 30 percent. .FRIDAY NIGHT...Mostly cloudy with a 30 percent chance of showers and thunderstorms. Lows 67 to 72. .SATURDAY AND SATURDAY NIGHT...Mostly cloudy with a 50 percent chance of showers and thunderstorms. Highs 85 to 91. Lows 65 to 70. .SUNDAY...Mostly cloudy with a 50 percent chance of showers and thunderstorms. Highs 78 to 84. .SUNDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 63 to 68. Chance of precipitation 40 percent. .COLUMBUS DAY...Mostly cloudy with a 40 percent chance of showers and thunderstorms. Highs 78 to 84. $$ AZZ505-080200- South Central Pinal County- Including Picacho Peak State Park 119 PM MST Tue Oct 7 2025 .REST OF TODAY...Sunny. Highs 91 to 96. .TONIGHT...Mostly clear. Lows 63 to 69. .WEDNESDAY...Mostly sunny. A 10 percent chance of showers and thunderstorms in the afternoon. Highs 94 to 99. .WEDNESDAY NIGHT...Mostly cloudy with a 10 percent chance of showers and thunderstorms. Lows 72 to 77. .THURSDAY...Mostly cloudy with a 20 percent chance of showers and thunderstorms. Highs 89 to 94. .THURSDAY NIGHT...Mostly cloudy with a 30 percent chance of showers and thunderstorms. Lows 70 to 75. .FRIDAY...Mostly cloudy with a 30 percent chance of showers and thunderstorms. Highs 92 to 97. .FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of showers and thunderstorms. Lows 68 to 73. .SATURDAY...Mostly cloudy with a 40 percent chance of showers and thunderstorms. Highs 82 to 87. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy with a 50 percent chance of showers and thunderstorms. Lows 65 to 70. Highs 79 to 84. .SUNDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 63 to 68. Chance of precipitation 40 percent. .COLUMBUS DAY...Mostly cloudy with a 30 percent chance of showers and thunderstorms. Highs 79 to 84. $$ AZZ506-080200- Southeast Pinal County- Including Mammoth and Oracle 119 PM MST Tue Oct 7 2025 .REST OF TODAY...Mostly sunny. Highs 89 to 95. .TONIGHT...Mostly clear. Lows 64 to 69. .WEDNESDAY...Partly cloudy in the morning, then a 10 percent chance of showers and thunderstorms in the afternoon. Highs 90 to 96. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of showers and thunderstorms. Lows 68 to 73. .THURSDAY...Mostly cloudy with a 20 percent chance of showers and thunderstorms. Highs 86 to 92. .THURSDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 68 to 73. Chance of precipitation 30 percent. .FRIDAY...Mostly cloudy with chance of showers and slight chance of thunderstorms. Highs 89 to 95. Chance of precipitation 30 percent. .FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of showers and thunderstorms. Lows 66 to 71. .SATURDAY AND SATURDAY NIGHT...Showers likely and chance of thunderstorms. Highs 82 to 88. Lows 63 to 68. Chance of precipitation 60 percent. .SUNDAY...Showers likely and chance of thunderstorms. Highs 76 to 82. Chance of precipitation 60 percent. .SUNDAY NIGHT...Mostly cloudy with a 50 percent chance of showers and thunderstorms. Lows 62 to 67. .COLUMBUS DAY...Mostly cloudy with a 40 percent chance of showers and thunderstorms. Highs 76 to 82. $$ AZZ507-080200- Upper San Pedro River Valley- Including Sierra Vista and Benson 119 PM MST Tue Oct 7 2025 .REST OF TODAY...Partly cloudy. Highs 86 to 91. .TONIGHT...Mostly clear. Lows 59 to 64. .WEDNESDAY...Partly cloudy in the morning, then mostly cloudy with a 10 percent chance of showers and thunderstorms in the afternoon. Highs 83 to 89. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of showers and thunderstorms. Lows 62 to 67. .THURSDAY...Mostly cloudy with a 20 percent chance of showers and thunderstorms. Highs 83 to 88. .THURSDAY NIGHT...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 62 to 67. Chance of precipitation 30 percent. .FRIDAY...Partly cloudy with a 10 percent chance of showers and thunderstorms. Highs 86 to 91. .FRIDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 61 to 66. Chance of precipitation 30 percent. .SATURDAY AND SATURDAY NIGHT...Mostly cloudy with a 50 percent chance of showers and thunderstorms. Highs 83 to 88. Lows 60 to 65. .SUNDAY...Showers likely and slight chance of thunderstorms. Highs 75 to 80. Chance of precipitation 60 percent. .SUNDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 58 to 63. Chance of precipitation 50 percent. .COLUMBUS DAY...Mostly cloudy with a 50 percent chance of showers and thunderstorms. Highs 73 to 79. $$ AZZ508-080200- Eastern Cochise County below 5000 feet- Including Willcox and Douglas 119 PM MST Tue Oct 7 2025 .REST OF TODAY...Partly cloudy. Highs 86 to 91. .TONIGHT...Partly cloudy. Lows 60 to 65. .WEDNESDAY...Partly cloudy in the morning then becoming mostly cloudy. A 10 percent chance of showers and thunderstorms. Highs 82 to 87. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of showers and thunderstorms. Lows 62 to 67. .THURSDAY...Mostly cloudy with a 10 percent chance of showers and thunderstorms. Highs 82 to 87. .THURSDAY NIGHT...Partly cloudy. Lows 62 to 67. .FRIDAY...Partly cloudy. Highs 85 to 90. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 61 to 66. .SATURDAY...Mostly cloudy with a 40 percent chance of showers and thunderstorms. Highs 84 to 89. .SATURDAY NIGHT...Mostly cloudy with a 50 percent chance of showers and thunderstorms. Lows 59 to 64. .SUNDAY...Showers likely and slight chance of thunderstorms. Highs 75 to 80. Chance of precipitation 60 percent. .SUNDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 58 to 63. Chance of precipitation 50 percent. .COLUMBUS DAY...Showers likely and chance of thunderstorms. Highs 73 to 78. Chance of precipitation 60 percent. $$ AZZ509-080200- Upper Gila River Valley- Including Clifton and Safford 119 PM MST Tue Oct 7 2025 .REST OF TODAY...Mostly sunny. Highs 86 to 92. .TONIGHT...Mostly clear. Lows 60 to 68. .WEDNESDAY...Breezy. Partly cloudy. A 20 percent chance of showers and thunderstorms. Highs 82 to 90. Southeast wind 15 to 25 mph. .WEDNESDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 62 to 70. Chance of precipitation 30 percent. .THURSDAY...Breezy. Mostly cloudy with a 20 percent chance of showers and thunderstorms. Highs 80 to 88. Southeast wind 15 to 25 mph. .THURSDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 62 to 70. Chance of precipitation 30 percent. .FRIDAY...Breezy. Partly cloudy with chance of showers and slight chance of thunderstorms. Highs 83 to 91. Chance of precipitation 30 percent. .FRIDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 62 to 68. Chance of precipitation 30 percent. .SATURDAY...Mostly cloudy with a 40 percent chance of showers and thunderstorms. Highs 80 to 88. .SATURDAY NIGHT...Showers likely and chance of thunderstorms. Lows 59 to 65. Chance of precipitation 60 percent. .SUNDAY...Mostly cloudy with a 50 percent chance of showers and thunderstorms. Highs 73 to 81. .SUNDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 58 to 64. Chance of precipitation 50 percent. .COLUMBUS DAY...Mostly cloudy with a 50 percent chance of showers and thunderstorms. Highs 74 to 80. $$ AZZ510-080200- White Mountains of Graham and Greenlee Counties- Including Hannagan Meadow 119 PM MST Tue Oct 7 2025 .REST OF TODAY...Mostly sunny. Highs 73 to 83. .TONIGHT...Mostly clear. A 10 percent chance of showers and thunderstorms after midnight. Lows 51 to 61. .WEDNESDAY...Partly cloudy with slight chance of showers and thunderstorms in the morning, then mostly cloudy with chance of showers and thunderstorms in the afternoon. Highs 70 to 80. Chance of precipitation 40 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of showers and thunderstorms. Lows 51 to 63. .THURSDAY...Mostly cloudy with chance of showers and slight chance of thunderstorms. Highs 68 to 78. Chance of precipitation 30 percent. .THURSDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 52 to 64. Chance of precipitation 30 percent. .FRIDAY...Mostly cloudy with chance of showers and slight chance of thunderstorms. Highs 70 to 80. Chance of precipitation 30 percent. .FRIDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 53 to 63. Chance of precipitation 30 percent. .SATURDAY AND SATURDAY NIGHT...Mostly cloudy with a 50 percent chance of showers and thunderstorms. Highs 68 to 78. Lows 51 to 61. .SUNDAY...Showers likely and chance of thunderstorms. Highs 61 to 71. Chance of precipitation 60 percent. .SUNDAY NIGHT...Mostly cloudy with a 40 percent chance of showers and thunderstorms. Lows 48 to 58. .COLUMBUS DAY...Mostly cloudy with a 50 percent chance of showers and thunderstorms. Highs 61 to 71. $$ AZZ511-080200- Galiuro and Pinaleno Mountains- Including Mount Graham 119 PM MST Tue Oct 7 2025 .REST OF TODAY...Mostly sunny. Highs 74 to 84. .TONIGHT...Mostly clear. Lows 56 to 62. .WEDNESDAY...Partly cloudy in the morning, then a 10 percent chance of showers and thunderstorms in the afternoon. Highs 71 to 83. .WEDNESDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 57 to 63. Chance of precipitation 30 percent. .THURSDAY...Breezy. Mostly cloudy with chance of showers and slight chance of thunderstorms. Highs 69 to 79. East wind 15 to 25 mph. Chance of precipitation 30 percent. .THURSDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 57 to 65. Chance of precipitation 30 percent. .FRIDAY...Breezy. Mostly cloudy with chance of showers and slight chance of thunderstorms. Highs 73 to 83. Chance of precipitation 30 percent. .FRIDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 57 to 63. Chance of precipitation 40 percent. .SATURDAY AND SATURDAY NIGHT...Showers likely and chance of thunderstorms. Highs 70 to 80. Lows 55 to 61. Chance of precipitation 60 percent. .SUNDAY...Showers likely and chance of thunderstorms. Highs 62 to 72. Chance of precipitation 60 percent. .SUNDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 53 to 59. Chance of precipitation 50 percent. .COLUMBUS DAY...Showers likely and chance of thunderstorms. Highs 62 to 72. Chance of precipitation 60 percent. $$ AZZ512-080200- Chiricahua Mountains- Including Chiricahua NM 119 PM MST Tue Oct 7 2025 .REST OF TODAY...Mostly cloudy. Highs 77 to 85. .TONIGHT...Partly cloudy. Lows 56 to 62. .WEDNESDAY...Mostly cloudy with a 20 percent chance of showers and thunderstorms. Highs 72 to 82. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of showers and thunderstorms. Lows 56 to 64. .THURSDAY...Mostly cloudy with a 10 percent chance of showers and thunderstorms. Highs 73 to 81. .THURSDAY NIGHT...Partly cloudy. Lows 57 to 63. .FRIDAY...Partly cloudy. Highs 76 to 84. .FRIDAY NIGHT...Partly cloudy with a 10 percent chance of showers and thunderstorms. Lows 57 to 63. .SATURDAY...Partly cloudy with a 40 percent chance of showers and thunderstorms. Highs 75 to 83. .SATURDAY NIGHT...Mostly cloudy with a 50 percent chance of showers and thunderstorms. Lows 55 to 61. .SUNDAY...Showers likely and slight chance of thunderstorms. Highs 66 to 74. Chance of precipitation 60 percent. .SUNDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 54 to 60. Chance of precipitation 50 percent. .COLUMBUS DAY...Showers likely and chance of thunderstorms. Highs 64 to 72. Chance of precipitation 60 percent. $$ AZZ513-080200- Dragoon and Mule and Huachuca and Santa Rita Mountains- Including Bisbee, Canelo Hills, and Madera Canyon 119 PM MST Tue Oct 7 2025 .REST OF TODAY...Partly cloudy. Highs 79 to 87. .TONIGHT...Partly cloudy. Lows 58 to 63. .WEDNESDAY...Partly cloudy in the morning, then mostly cloudy with a 10 percent chance of showers and thunderstorms in the afternoon. Highs 77 to 85. .WEDNESDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 60 to 65. Chance of precipitation 30 percent. .THURSDAY...Mostly cloudy with a 10 percent chance of showers and thunderstorms. Highs 76 to 84. .THURSDAY NIGHT...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows 59 to 64. Chance of precipitation 30 percent. .FRIDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Highs 79 to 87. Chance of precipitation 30 percent. .FRIDAY NIGHT...Mostly cloudy with a 30 percent chance of showers and thunderstorms. Lows 59 to 64. .SATURDAY...Partly cloudy with a 50 percent chance of showers and thunderstorms. Highs 76 to 84. .SATURDAY NIGHT...Mostly cloudy with a 50 percent chance of showers and thunderstorms. Lows 57 to 62. .SUNDAY AND SUNDAY NIGHT...Showers likely and slight chance of thunderstorms. Highs 68 to 74. Lows 56 to 61. Chance of precipitation 60 percent. .COLUMBUS DAY...Showers likely and chance of thunderstorms. Highs 67 to 73. Chance of precipitation 60 percent. $$ AZZ514-080200- Catalina and Rincon Mountains- Including Mount Lemmon and Summerhaven 119 PM MST Tue Oct 7 2025 .REST OF TODAY...Mostly sunny. Highs 73 to 85. .TONIGHT...Mostly clear. Lows 57 to 65. .WEDNESDAY...Partly cloudy in the morning, then mostly cloudy with a 10 percent chance of showers and thunderstorms in the afternoon. Highs 73 to 83. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of showers and thunderstorms. Lows 58 to 66. .THURSDAY...Mostly cloudy with a 20 percent chance of showers and thunderstorms. Highs 70 to 82. .THURSDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 59 to 67. Chance of precipitation 30 percent. .FRIDAY...Mostly cloudy with chance of showers and slight chance of thunderstorms. Highs 73 to 85. Chance of precipitation 30 percent. .FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of showers and thunderstorms. Lows 58 to 66. .SATURDAY...Mostly cloudy with a 40 percent chance of showers and thunderstorms. Highs 68 to 80. .SATURDAY NIGHT AND SUNDAY...Showers likely and chance of thunderstorms. Lows 55 to 63. Highs 62 to 72. Chance of precipitation 60 percent. .SUNDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 53 to 61. Chance of precipitation 50 percent. .COLUMBUS DAY...Mostly cloudy with a 50 percent chance of showers and thunderstorms. Highs 61 to 71. $$ AZZ515-080200- Baboquivari Mountains- Including Kitt Peak 119 PM MST Tue Oct 7 2025 .REST OF TODAY...Mostly sunny. Highs 82 to 88. .TONIGHT...Mostly clear. Lows 62 to 67. .WEDNESDAY...Mostly sunny in the morning, then mostly cloudy with a 10 percent chance of showers and thunderstorms in the afternoon. Highs 83 to 89. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of showers and thunderstorms. Lows 65 to 70. .THURSDAY...Mostly cloudy with a 10 percent chance of showers and thunderstorms. Highs 80 to 86. .THURSDAY NIGHT...Mostly cloudy with a 40 percent chance of showers and thunderstorms. Lows 64 to 69. .FRIDAY...Mostly cloudy with a 30 percent chance of showers and thunderstorms. Highs 82 to 88. .FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of showers and thunderstorms. Lows 63 to 68. .SATURDAY...Mostly cloudy with a 50 percent chance of showers and thunderstorms. Highs 76 to 82. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...Mostly cloudy with chance of showers and slight chance of thunderstorms. Lows 59 to 65. Highs 69 to 75. Chance of precipitation 50 percent. .COLUMBUS DAY...Mostly cloudy with a 40 percent chance of showers and thunderstorms. Highs 69 to 75. $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson