| NWS Forecast for: North Bay Interior Valleys Issued by: National Weather Service San Francisco Bay Area/Monterey, CA Last Update: 604 AM PDT Thu May 21 2026 | |
| Today: Sunny. Highs in the lower 70s to mid 80s. South winds up to 5 mph increasing to southwest 10 to 15 mph in the afternoon. Tonight: Mostly clear except patchy fog after midnight. Lows in the mid 40s to lower 60s. Southwest winds 5 to 15 mph. Friday: Partly cloudy in the morning then becoming sunny. Highs in the mid 60s to lower 80s. Southwest winds 5 to 15 mph. Friday Night: Clear in the evening then becoming partly cloudy. Patchy fog after midnight. Lows in the upper 40s to mid 50s. Southwest winds 10 to 15 mph. Saturday: Mostly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the mid 60s to upper 70s. Southwest winds 5 to 15 mph. Saturday Night: Mostly clear in the evening then becoming mostly cloudy. Patchy fog. Lows near 50. Sunday: Mostly cloudy in the morning then becoming sunny. Highs in the mid 60s to upper 70s. Sunday Night: Mostly clear in the evening then becoming partly cloudy. Lows in the mid 40s to lower 50s. Memorial Day Through Tuesday: Partly cloudy. Highs in the 60s to 70s. Lows near 50. Tuesday Night And Wednesday: Mostly clear. Lows near 50. Highs in the 60s to upper 70s. | |
| Zone Forecast: North Bay Interior Valleys | |
Visit your local NWS office at: https://www.weather.gov/mtr |