| NWS Forecast for: Upper Santa Cruz River and Altar Valleys including Nogales Issued by: National Weather Service Tucson, AZ Last Update: 212 PM MST Sun Mar 15 2026 | |
Tonight: Mostly clear. Lows 47 to 55. Monday: Mostly sunny. Highs 82 to 87. Monday Night: Mostly clear. Lows 48 to 56. Tuesday: Mostly sunny. Highs 86 to 92. Tuesday Night: Clear. Lows 53 to 59. Wednesday: Sunny. Highs 89 to 95. Wednesday Night: Clear. Lows 55 to 61. Thursday: Sunny. Highs 95 to 101. Thursday Night Through Saturday Night: Clear. Lows 57 to 64. Highs 95 to 102. Sunday: Mostly sunny. Highs 91 to 97. | |
| Zone Forecast: Upper Santa Cruz River and Altar Valleys including Nogales | |
Visit your local NWS office at: https://www.weather.gov/twc |