National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

Mount Shasta (KMHS)

Lat: 41.31494°NLon: 122.31702°WElev: 3540.0ft.

Rain

44°F

7°C

Humidity 88%
Wind Speed NA NA MPH
Barometer 29.59 in (1002.03 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 24 Dec 01:56 PM PST
Extended Forecast for

Weed CA

High Wind Warning December 25, 07:00am until December 25, 01:00pm
Click here for hazard details and duration
High Wind Warning

  • This Afternoon

    This Afternoon: A 50 percent chance of rain before 4pm. Snow level 5100 feet. Partly sunny, with a high near 48. Breezy, with a south southeast wind around 24 mph, with gusts as high as 34 mph.

    High: 48 °F

    Chance Rain
    and Breezy

  • Tonight

    Tonight: Rain, mainly after 9pm. The rain could be heavy at times. Snow level 5100 feet rising to 5600 feet after midnight. Low around 34. Breezy, with a south southeast wind 20 to 28 mph, with gusts as high as 41 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Low: 34 °F

    Heavy Rain
    and Breezy

  • Christmas Day

    Christmas Day: Rain and snow. Snow level 4900 feet lowering to 3900 feet in the afternoon . High near 40. Breezy, with a south southeast wind 21 to 26 mph, with gusts as high as 65 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 40 °F

    Rain/Snow and
    Breezy

  • Thursday Night

    Thursday Night: Rain and snow, becoming all snow after 4am. Snow level 3900 feet. Low around 32. Breezy, with a south southeast wind 20 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 32 °F

    Rain/Snow and
    Breezy

  • Friday

    Friday: A slight chance of snow before 7am, then rain, possibly mixed with snow between 7am and 1pm, then rain after 1pm. Snow level 4000 feet. High near 40. Breezy, with a south southeast wind 22 to 28 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Rain/Snow and
    Breezy

  • Friday Night

    Friday Night: Rain likely before 7pm, then rain and snow likely between 7pm and 10pm, then a slight chance of snow after 10pm. Mostly cloudy, with a low around 25. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Rain/Snow
    Likely then
    Slight Chance
    Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of rain before 4pm. Snow level 5100 feet. Partly sunny, with a high near 48. Breezy, with a south southeast wind around 24 mph, with gusts as high as 34 mph.
Tonight
Rain, mainly after 9pm. The rain could be heavy at times. Snow level 5100 feet rising to 5600 feet after midnight. Low around 34. Breezy, with a south southeast wind 20 to 28 mph, with gusts as high as 41 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Christmas Day
Rain and snow. Snow level 4900 feet lowering to 3900 feet in the afternoon . High near 40. Breezy, with a south southeast wind 21 to 26 mph, with gusts as high as 65 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday Night
Rain and snow, becoming all snow after 4am. Snow level 3900 feet. Low around 32. Breezy, with a south southeast wind 20 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Friday
A slight chance of snow before 7am, then rain, possibly mixed with snow between 7am and 1pm, then rain after 1pm. Snow level 4000 feet. High near 40. Breezy, with a south southeast wind 22 to 28 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Friday Night
Rain likely before 7pm, then rain and snow likely between 7pm and 10pm, then a slight chance of snow after 10pm. Mostly cloudy, with a low around 25. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday
Mostly sunny, with a high near 36.
Saturday Night
Partly cloudy, with a low around 19.
Sunday
Mostly sunny, with a high near 39.
Sunday Night
Mostly clear, with a low around 24.
Monday
Sunny, with a high near 44.
Monday Night
Mostly clear, with a low around 28.
Tuesday
Sunny, with a high near 48.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Weed CA
 41.42°N 122.39°W (Elev. 3560 ft)
Last Update:
2:21 pm PST Dec 24, 2025
Forecast Valid:
2pm PST Dec 24, 2025-6pm PST Dec 30, 2025
 
Forecast Discussion
 
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