Expires:202512222000;;006562 FPUS56 KMTR 220502 ZFPMTR San Francisco Bay Area/Central California Zone Forecast National Weather Service San Francisco Bay Area 901 PM PST Sun Dec 21 2025 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. CAZ504-222000- North Bay Interior Mountains- 901 PM PST Sun Dec 21 2025 ...FLOOD WATCH IN EFFECT THROUGH MONDAY AFTERNOON... ...HIGH WIND WATCH IN EFFECT LATE TUESDAY NIGHT... .REST OF TONIGHT...Rain. Lows in the upper 40s to mid 50s. Southwest winds 10 to 20 mph with gusts to around 35 mph. .MONDAY...A chance of rain in the morning, then rain in the afternoon. Highs in the mid 50s. Southwest winds 5 to 10 mph. .MONDAY NIGHT...Patchy fog. Rain. Lows around 50. Light winds... becoming southeast 5 to 15 mph after midnight. .TUESDAY...Rain. Highs in the mid 50s. South winds 10 to 20 mph with gusts to around 35 mph. .TUESDAY NIGHT...Rain in the evening, then rain likely after midnight. Rain may be heavy at times. Lows in the upper 40s. South winds 10 to 20 mph. Gusts up to 50 mph decreasing to 40 mph after midnight. .WEDNESDAY...Rain likely. Highs in the lower 50s. .WEDNESDAY NIGHT AND CHRISTMAS DAY...Showers and a slight chance of thunderstorms. Lows in the upper 40s. Highs around 50. .THURSDAY NIGHT...Rain. Lows in the mid 40s. .FRIDAY...Rain likely. Highs in the upper 40s. .FRIDAY NIGHT...Mostly cloudy. A chance of rain. Lows in the lower 40s. .SATURDAY...Partly cloudy in the morning then becoming sunny. A slight chance of rain. Highs near 50. .SATURDAY NIGHT...Mostly clear. Lows around 40. .SUNDAY...Partly cloudy. Highs in the upper 40s to mid 50s. && TEMPERATURE / PRECIPITATION Lake Berryessa 54 57 51 56 / 90 80 80 100 $$