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Sims, California Weather Forecast
Sims, California Weather
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Weather Forecast for Sims, California : Shasta County
Issued: 1:21 am PST Dec 18, 2025 Latitude: 41.0718176 Longitude: -122.3550112 View on Google Maps

MouseOver for Detail Forecast
Overnight Thursday Friday Saturday Sunday Monday Tuesday Wednesday
20% chance of rain on Overnight 70% chance of rain on Thursday 100% chance of rain on Friday 80% chance of rain on Saturday Thunderstorms on Sunday Rain on Monday Rain on Tuesday Rain on Wednesday
Low: 41°F High: 52°F High: 52°F High: 52°F High: 53°F High: 52°F High: 51°F High: 50°F
Low: 42°F Low: 36°F Low: 41°F Low: 38°F Low: 35°F Low: 36°F  
Rain Rain Rain Rain Thunderstorms Rain Rain Rain
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Current Conditions at
MT SHASTA - (KMHS)
39°
Cloudy
as of 4:56 AM PST
Rel. Humidity: 100%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 30.07 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Scattered at 6500ft, Solid Overcast at 10000ft
Current Conditions at
REDDING - (KRDD)
48°
Cloudy
as of 4:53 AM PST
Rel. Humidity: 93%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 30.10 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Broken at 2000ft, Solid Overcast at 10000ft
Current Conditions at
MONTAGUE/SSK - (KSIY)
39°
Cloudy
as of 4:53 AM PST
Rel. Humidity: 86%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
3 MPH
340° North
Cloud Level(s): Solid Overcast at 6500ft
Current Conditions at
RED BLUFF - (KRBL)
52°
Cloudy
as of 5:16 AM PST
Rel. Humidity: 87%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: IFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 900ft
20% chance of rain Overnight Overnight... A 20 percent chance of showers. Widespread dense fog. Otherwise, mostly cloudy, with a steady temperature around 41. Calm wind.

70% chance of rain Thursday Thursday... Showers likely, mainly between 9am and 4pm. Widespread dense fog, mainly before 7am. Otherwise, cloudy, with a high near 52. South southwest wind 3 to 6 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

100% chance of rain Thursday Night Thursday Night... Showers. The rain could be heavy at times. Areas of fog after 9pm. Low around 42. South wind around 7 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

100% chance of rain Friday Friday... Showers. The rain could be heavy at times. High near 52. South southwest wind around 7 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

90% chance of rain Friday Night Friday Night... Showers, mainly before 4am. Low around 36. Light south southwest wind. Chance of precipitation is 90%.

80% chance of rain Saturday Saturday... Showers, mainly after 10am. High near 52. Chance of precipitation is 80%.

90% chance of rain Saturday Night Saturday Night... Showers. The rain could be heavy at times. Low around 41. Chance of precipitation is 90%.

Thunderstorms on Sunday Sunday... Showers and possibly a thunderstorm. Cloudy, with a high near 53.

Rain on Sunday Night Sunday Night... Showers. Cloudy, with a low around 38.

Rain on Monday Monday... Showers. Mostly cloudy, with a high near 52.

Rain on Monday Night Monday Night... Showers likely. Mostly cloudy, with a low around 35.

Rain on Tuesday Tuesday... Showers likely. Mostly cloudy, with a high near 51.

Rain on Tuesday Night Tuesday Night... Showers. Mostly cloudy, with a low around 36.

Rain on Wednesday Wednesday... Showers likely. Mostly cloudy, with a high near 50.

Current Radar Image


Sun Almanac for Sims, California
Sunrise: 07:30 AM
Sunset: 4:43 PM
Civil Sunrise:06:59 AM
Civil Sunset: 5:14 PM
Nautical Sunrise: 06:24 AM
Nautical Sunset: 5:49 PM
Astro Sunrise: 05:50 AM
Astro Sunset: 6:22 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.