Foster, California Weather
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Weather Forecast for Foster, California : Siskiyou County
Issued: 10:40 pm PDT Sep 15, 2025 Latitude: 41.2537526 Longitude: -122.9589237 View on Google Maps

MouseOver for Detail Forecast
Overnight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
Clear on Overnight Sunny on Tuesday Sunny on Wednesday Sunny on Thursday 10% chance of on Friday 20% chance of thunderstorms on Saturday Sunny on Sunday Sunny on Monday
Low: 55°F High: 73°F High: 74°F High: 73°F High: 66°F High: 65°F High: 66°F High: 68°F
Low: 54°F Low: 54°F Low: 55°F Low: 52°F Low: 49°F Low: 51°F  
Clear Sunny Sunny Sunny Partly Sunny Thunderstorms Sunny Sunny
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Current Conditions at
MT SHASTA - (KMHS)
48°
Clear
as of 12:56 AM PDST
Rel. Humidity: 76%
Dew Point: 41°F
Visibility: 10 Miles
Pressure: 30.09 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MONTAGUE/SSK - (KSIY)
55°
Clear
as of 12:53 AM PDST
Rel. Humidity: 50%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
5 MPH
070° East
Cloud Level(s): Clear
Current Conditions at
ARCATA - (KACV)
54°
Clear
as of 12:53 AM PDST
Rel. Humidity: 100%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 29.89 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
REDDING - (KRDD)
66°
Clear
as of 12:53 AM PDST
Rel. Humidity: 45%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 29.88 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Clear on Overnight Overnight... Clear, with a steady temperature around 55. East southeast wind around 7 mph.
Sunny on Tuesday Tuesday... Sunny, with a high near 73. East southeast wind around 8 mph becoming south southwest in the afternoon.
Clear on Tuesday Night Tuesday Night... Clear, with a low around 54. South wind around 6 mph becoming east southeast after midnight.
Sunny on Wednesday Wednesday... Sunny, with a high near 74. East southeast wind around 6 mph becoming west in the afternoon.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 54. Northwest wind 5 to 9 mph becoming east northeast after midnight.
Sunny on Thursday Thursday... Sunny, with a high near 73.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 55.
10% chance of Friday Friday... A slight chance of showers after 11am. Partly sunny, with a high near 66.
10% chance of rain Friday Night Friday Night... A slight chance of showers before 11pm. Partly cloudy, with a low around 52.
20% chance of thunderstorms Saturday Saturday... A chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 65.
10% chance of rain Saturday Night Saturday Night... A slight chance of showers. Mostly clear, with a low around 49.
Sunny on Sunday Sunday... Sunny, with a high near 66.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 51.
Sunny on Monday Monday... Sunny, with a high near 68.
Current Radar Image


Sun Almanac for Foster, California
Sunrise: 06:54 AM
Sunset: 7:19 PM
Civil Sunrise:06:26 AM
Civil Sunset: 7:47 PM
Nautical Sunrise: 05:54 AM
Nautical Sunset: 8:19 PM
Astro Sunrise: 05:20 AM
Astro Sunset: 8:53 PM
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