| NWS Forecast for: North Bay Interior Valleys Issued by: National Weather Service San Francisco Bay Area/Monterey, CA Last Update: 602 PM PDT Tue Oct 20 2026 | |
| Tonight: Mostly cloudy. Lows in the 40s to mid 50s. West winds up to 5 mph in the evening...becoming light. Wednesday: Mostly cloudy. Patchy fog in the morning. A slight chance of showers. Highs in the lower 60s to mid 70s. West winds 5 to 10 mph. Wednesday Night: Mostly cloudy. A chance of showers. Areas of fog after midnight. Lows in the 40s to mid 50s. West winds up to 5 mph...becoming northwest after midnight. Thursday: Mostly cloudy. Areas of fog in the morning. A chance of showers. Highs in the 60s to lower 70s. West winds up to 5 mph increasing to southwest 10 to 15 mph in the afternoon. Chance of showers 40 percent. Thursday Night: Mostly cloudy in the evening then becoming partly cloudy. Patchy fog in the evening. Areas of fog after midnight. Lows in the 40s to lower 50s. West winds 5 to 15 mph. Friday: Partly cloudy in the morning then becoming sunny. Patchy fog. Highs in the 60s to upper 70s. Friday Night: Clear. Lows in the upper 30s to lower 50s. Saturday And Saturday Night: Mostly clear. Highs in the 60s to upper 70s. Lows in the upper 30s to lower 50s. Sunday Through Tuesday: Partly cloudy. Highs in the mid 60s to lower 80s. Lows in the lower 40s to mid 50s. | |
| Zone Forecast: North Bay Interior Valleys | |
Visit your local NWS office at: https://www.weather.gov/mtr |