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Grant, California Weather Forecast
Grant, California Weather
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Weather Forecast for Grant, California : Sonoma County
Issued: 12:27 pm PST Dec 18, 2025 Latitude: 38.5901881 Longitude: -122.8477709 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Friday Saturday Sunday Monday Tuesday Wednesday
30% chance of rain on This Afternoon 80% chance of rain on Tonight 100% chance of rain on Friday 70% chance of rain on Saturday 100% chance of thunderstorms on Sunday Rain on Monday Rain on Tuesday 70% chance of rain on Wednesday
High: 56°F Low: 49°F High: 56°F High: 53°F High: 56°F High: 53°F High: 52°F High: 52°F
Low: 47°F Low: 50°F Low: 49°F Low: 45°F Low: 42°F  
Rain Rain Rain Rain Thunderstorms Rain Rain Rain
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Current Conditions at
SANTA ROSA - (KSTS)
52°
Cloudy
as of 12:53 PM PST
Rel. Humidity: 87%
Dew Point: 48°F
Visibility: 7 Miles
Pressure: 30.15 in.
Flight Rule: IFR
Wind Data
3 MPH
210° Southwest
Cloud Level(s): Solid Overcast at 700ft
Current Conditions at
NAPA - (KAPC)
55°
Mostly Cloudy
as of 12:54 PM PST
Rel. Humidity: 93%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: IFR
Wind Data
5 MPH
270° West
Cloud Level(s): Broken at 900ft
Current Conditions at
UKIAH - (KUKI)
55°
Cloudy
as of 12:56 PM PST
Rel. Humidity: 76%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 3100ft
Current Conditions at
VACAVILLE - (KVCB)
55°
Cloudy
as of 12:53 PM PST
Rel. Humidity: 87%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: MVFR
Wind Data
7 MPH
200° South
Cloud Level(s): Solid Overcast at 1200ft
30% chance of rain This Afternoon This Afternoon... A 30 percent chance of rain after 4pm. Patchy fog before 3pm, then patchy fog after 5pm. Otherwise, mostly cloudy, with a high near 56. Light south southeast wind.
80% chance of rain Tonight Tonight... Rain, mainly after 10pm. Areas of dense fog. Low around 49. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
100% chance of rain Friday Friday... Rain. High near 56. South wind around 7 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
70% chance of rain Friday Night Friday Night... Rain likely, mainly before 10pm. Patchy dense fog. Otherwise, cloudy, with a low around 47. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
70% chance of rain Saturday Saturday... Rain likely, mainly after 10am. Widespread fog, mainly between 7am and 10am. Otherwise, cloudy, with a high near 53. Calm wind. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
100% chance of rain Saturday Night Saturday Night... Rain. Patchy fog before 7pm. Low around 50. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
100% chance of thunderstorms Sunday Sunday... Rain before 10am, then showers and possibly a thunderstorm between 10am and 1pm, then rain after 1pm. High near 56. Chance of precipitation is 100%.
Rain on Sunday Night Sunday Night... Rain. Cloudy, with a low around 49.
Rain on Monday Monday... Rain. Cloudy, with a high near 53.
70% chance of rain Monday Night Monday Night... Rain likely. Patchy fog after 4am. Otherwise, cloudy, with a low around 45.
Rain on Tuesday Tuesday... Rain. Patchy fog. Otherwise, cloudy, with a high near 52.
Rain on Tuesday Night Tuesday Night... Rain. Cloudy, with a low around 42.
70% chance of rain Wednesday Wednesday... Rain likely. Mostly cloudy, with a high near 52.
Current Radar Image


Sun Almanac for Grant, California
Sunrise: 07:24 AM
Sunset: 4:52 PM
Civil Sunrise:06:54 AM
Civil Sunset: 5:22 PM
Nautical Sunrise: 06:21 AM
Nautical Sunset: 5:56 PM
Astro Sunrise: 05:49 AM
Astro Sunset: 6:28 PM
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