Expires:202601251700;;475721 FPUS56 KMTR 250101 ZFPMTR San Francisco Bay Area/Central California Zone Forecast National Weather Service San Francisco Bay Area 501 PM PST Sat Jan 24 2026 This is an automatically generated product that provides average values for large geographic areas. For a more site specific forecast...please visit weather.gov/sanfrancisco (1) Select a location from the drop down menu above the map... -- or -- (2) Click a location on the map. You can refine your selection by clicking on the map displayed on the resulting page. CAZ506-251700- North Bay Interior Valleys- 501 PM PST Sat Jan 24 2026 .TONIGHT...Mostly clear in the evening then becoming partly cloudy. Lows in the 30s to mid 40s. North winds 10 to 20 mph with gusts to around 35 mph...becoming east after midnight. .SUNDAY...Mostly cloudy. Highs in the mid 40s to upper 50s. East winds 10 to 20 mph...becoming 5 to 10 mph in the afternoon. .SUNDAY NIGHT...Mostly cloudy. Lows in the 30s to mid 40s. East winds up to 5 mph. .MONDAY...Partly cloudy. Highs in the 50s to lower 60s. East winds 5 to 10 mph. .MONDAY NIGHT...Partly cloudy. Patchy fog after midnight. Lows in the 30s to mid 40s. East winds up to 5 mph. .TUESDAY...Partly cloudy. Patchy dense fog. Highs in the 50s to lower 60s. .TUESDAY NIGHT...Mostly cloudy. Patchy fog. A chance of rain. Lows in the 40s. .WEDNESDAY...Mostly cloudy. A chance of rain. Highs in the 50s to lower 60s. .WEDNESDAY NIGHT...Mostly cloudy. Patchy fog. A slight chance of rain. Lows in the 30s to upper 40s. .THURSDAY...Partly cloudy in the morning then becoming sunny. Highs in the upper 50s to mid 60s. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly cloudy. Patchy fog. Lows in the 40s to lower 50s. Highs in the 50s to mid 60s. .SATURDAY...Mostly cloudy. Patchy fog. A slight chance of rain. Highs in the mid 50s to lower 60s. && TEMPERATURE / PRECIPITATION Santa Rosa 35 56 37 60 / San Rafael 41 52 43 59 / Napa 37 51 39 58 / $$