| NWS Forecast for: Santa Catalina and Rincon Mountains including Mount Lemmon/Summerhaven Issued by: National Weather Service Tucson, AZ Last Update: 213 PM MST Thu Sep 3 2026 |  |
Tonight: Mostly cloudy. Chance of showers and thunderstorms in the evening, then chance of showers and slight chance of thunderstorms after midnight. Lows 58 to 64. Chance of precipitation 50 percent. Friday: Mostly cloudy. Chance of showers and slight chance of thunderstorms in the morning, then chance of showers and thunderstorms in the afternoon. Highs 71 to 79. Chance of precipitation 40 percent. Friday Night: Partly cloudy. A 10 percent chance of showers and thunderstorms in the evening. Lows 60 to 66. Saturday: Partly cloudy with a 10 percent chance of showers and thunderstorms. Highs 73 to 81. Saturday Night: Partly cloudy. Lows 62 to 68. Sunday: Partly cloudy with a 10 percent chance of showers and thunderstorms. Highs 75 to 83. Sunday Night: Partly cloudy with a 10 percent chance of showers and thunderstorms. Lows 63 to 69. Labor Day: Partly cloudy with a 10 percent chance of showers and thunderstorms. Highs 76 to 84. Monday Night: Partly cloudy with a 10 percent chance of showers and thunderstorms. Lows 64 to 70. Tuesday And Tuesday Night: Partly cloudy with a 30 percent chance of showers and thunderstorms. Highs 78 to 86. Lows 64 to 70. Wednesday: Partly cloudy with a 40 percent chance of showers and thunderstorms. Highs 76 to 84. Wednesday Night: Mostly cloudy with a 50 percent chance of showers and thunderstorms. Lows 63 to 69. Thursday: Partly cloudy with a 40 percent chance of showers and thunderstorms. Highs 73 to 81. | |
| Zone Forecast: Santa Catalina and Rincon Mountains including Mount Lemmon/Summerhaven | |
Visit your local NWS office at: https://www.weather.gov/twc |