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 >

Current conditions at

SUGARLOAF (SHF) (SLFC1)

Lat: 40.91596°NLon: 122.43483°WElev: 3259.0ft.

NA

43°F

6°C

Humidity 100%
Wind Speed WSW 14 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Wind Chill36°F (2°C)
Last update 24 Dec 05:19 PM PST
Extended Forecast for

11 Miles NNW Central Valley CA

Flood Watch December 24, 05:34pm until December 26, 04:00pm
Winter Storm Warning until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
Winter Storm Warning
  •  
    Flood Watch December 24, 05:34pm until December 26, 04:00pm
    Winter Storm Warning until December 26, 10:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 49 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Rain, mainly after 8pm. The rain could be heavy at times.  Low around 43. South southeast wind 11 to 17 mph, with gusts as high as 40 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Low: 43 °F

    Heavy Rain

  • Christmas Day

    Christmas Day: Rain, mainly before 1pm, then showers and possibly a thunderstorm after 1pm.  Steady temperature around 46. South southeast wind 18 to 20 mph, with gusts as high as 39 mph.  Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 46 °F

    Showers

  • Thursday Night

    Thursday Night: Rain.  Low around 41. South southeast wind 11 to 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    Low: 41 °F

    Rain

  • Friday

    Friday: Rain.  High near 46. South southeast wind around 13 mph, with gusts as high as 26 mph.  Chance of precipitation is 100%.

    High: 46 °F

    Rain

  • Friday Night

    Friday Night: Rain, mainly before 10pm.  Low around 36. Chance of precipitation is 80%.

    Low: 36 °F

    Rain then
    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain.  Mostly sunny, with a high near 49.

    High: 49 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
A 20 percent chance of rain. Mostly cloudy, with a steady temperature around 49. Southeast wind around 10 mph, with gusts as high as 21 mph. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain, mainly after 8pm. The rain could be heavy at times. Low around 43. South southeast wind 11 to 17 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Christmas Day
Rain, mainly before 1pm, then showers and possibly a thunderstorm after 1pm. Steady temperature around 46. South southeast wind 18 to 20 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Thursday Night
Rain. Low around 41. South southeast wind 11 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Friday
Rain. High near 46. South southeast wind around 13 mph, with gusts as high as 26 mph. Chance of precipitation is 100%.
Friday Night
Rain, mainly before 10pm. Low around 36. Chance of precipitation is 80%.
Saturday
A 20 percent chance of rain. Mostly sunny, with a high near 49.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 38.
Monday
Sunny, with a high near 59.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 59.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NNW Central Valley CA
 40.81°N 122.43°W (Elev. 1696 ft)
1:21 pm PST Dec 24, 2025
5pm PST Dec 24, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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