| NWS Forecast for: Upper Santa Cruz River and Altar Valleys including Nogales Issued by: National Weather Service Tucson, AZ Last Update: 212 AM MST Mon Mar 16 2026 |  |
Today: Mostly sunny. Highs 82 to 87. Tonight: Mostly clear. Lows 48 to 56. Tuesday: Mostly sunny. Highs 85 to 91. Tuesday Night: Clear. Lows 52 to 58. Wednesday: Sunny. Highs 88 to 94. Wednesday Night: Clear. Lows 55 to 61. Thursday: Sunny. Highs 94 to 100. Thursday Night Through Saturday Night: Clear. Lows 57 to 64. Highs 96 to 102. Sunday: Mostly sunny. Highs 92 to 98. | |
| Zone Forecast: Upper Santa Cruz River and Altar Valleys including Nogales | |
Visit your local NWS office at: https://www.weather.gov/twc |