| NWS Forecast for: San Bernardino County-Upper Colorado River Valley Issued by: National Weather Service Las Vegas, NV Last Update: 335 PM PDT Mon Oct 5 2026 | |
| Tonight: Mostly clear. Lows 75 to 78. Southeast winds up to 5 mph shifting to the northeast after midnight. Tuesday: Sunny. Highs around 100. East winds up to 5 mph shifting to the southwest in the afternoon. Tuesday Night: Mostly clear. Lows 75 to 78. Northwest winds up to 5 mph. Wednesday: Sunny. Highs 100 to 103. Northwest winds up to 10 mph. Wednesday Night: Clear. Lows 76 to 79. North winds up to 5 mph. Thursday And Thursday Night: Clear. Highs 100 to 103. Lows 76 to 79. Friday Through Saturday: Mostly clear. Highs around 100. Lows 76 to 79. Saturday Night And Sunday: Mostly clear. Lows 71 to 74. Highs 92 to 95. Sunday Night: Partly cloudy. Lows 66 to 69. Columbus Day: Sunny. Highs 83 to 86. | |
| Zone Forecast: San Bernardino County-Upper Colorado River Valley | |
Visit your local NWS office at: https://www.weather.gov/vef |