| NWS Forecast for: Upper Santa Cruz River and Altar Valleys including Nogales Issued by: National Weather Service Tucson, AZ Last Update: 212 AM MST Sun May 10 2026 | |
| Today: Sunny. Highs 92 to 98. Tonight: Clear. Lows 59 to 65. Monday: Mostly sunny. Highs 95 to 101. Monday Night: Partly cloudy. Lows 62 to 68. Tuesday: Mostly sunny. Highs 91 to 97. Tuesday Night: Partly cloudy. Lows 61 to 67. Wednesday: Partly cloudy. Highs 89 to 95. Wednesday Night: Partly cloudy. Lows 57 to 63. Thursday And Thursday Night: Mostly clear. Highs 88 to 93. Lows 55 to 61. Friday: Sunny. Highs 87 to 92. Friday Night And Saturday: Mostly clear. Lows 55 to 61. Highs 89 to 94. | |
| Zone Forecast: Upper Santa Cruz River and Altar Valleys including Nogales | |
Visit your local NWS office at: https://www.weather.gov/twc |