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

Heber Valley Airport (KHCR)

Lat: 40.47742°NLon: 111.43295°WElev: 5597.0ft.

Overcast

54°F

12°C

Humidity 45%
Wind Speed SE 11 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 24 Dec 12:35 PM MST
Extended Forecast for

Trial Lk UT

Winter Weather Advisory until December 25, 11:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until December 25, 11:00pm

    NOW until 11:00pm Thu

    Winter Weather Advisory

  • This Afternoon

    High: 34 °F

    Chance Snow

  • Tonight

    Tonight: Snow, mainly before 5am, then snow showers after 5am. Some thunder is also possible. Steady temperature around 33. Breezy, with a south southeast wind around 22 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 33 °F

    Snow and
    Breezy

  • Christmas Day

    Christmas Day: Snow showers before 8am, then snow between 8am and 2pm, then snow showers after 2pm. Some thunder is also possible. Temperature rising to near 33 by 9am, then falling to around 29 during the remainder of the day. South southwest wind 16 to 18 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 33 °F⇓

    Snow Showers

  • Thursday Night

    Thursday Night: Snow likely, mainly after 11pm. Mostly cloudy, with a low around 25. South southwest wind 15 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 25 °F

    Snow Likely

  • Friday

    Friday: Snow, mainly before 2pm, then snow showers after 2pm. Some thunder is also possible. High near 29. Southwest wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 29 °F

    Snow

  • Friday Night

    Friday Night: Snow showers before 11pm, then snow after 11pm. The snow could be heavy at times. Some thunder is also possible. Low around 16. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

    Low: 16 °F

    Heavy Snow

  • Saturday

    Saturday: Snow likely, mainly before 11am. Mostly cloudy, with a high near 24. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 24 °F

    Snow Likely

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 7.

    Low: 7 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A 50 percent chance of snow. Mostly cloudy, with a steady temperature around 34. South southeast wind around 17 mph. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow, mainly before 5am, then snow showers after 5am. Some thunder is also possible. Steady temperature around 33. Breezy, with a south southeast wind around 22 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Christmas Day
Snow showers before 8am, then snow between 8am and 2pm, then snow showers after 2pm. Some thunder is also possible. Temperature rising to near 33 by 9am, then falling to around 29 during the remainder of the day. South southwest wind 16 to 18 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
Snow likely, mainly after 11pm. Mostly cloudy, with a low around 25. South southwest wind 15 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Friday
Snow, mainly before 2pm, then snow showers after 2pm. Some thunder is also possible. High near 29. Southwest wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Friday Night
Snow showers before 11pm, then snow after 11pm. The snow could be heavy at times. Some thunder is also possible. Low around 16. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Saturday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 24. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Saturday Night
Mostly cloudy, with a low around 7.
Sunday
Sunny, with a high near 25.
Sunday Night
Mostly clear, with a low around 10.
Monday
Sunny, with a high near 31.
Monday Night
Mostly clear, with a low around 15.
Tuesday
Sunny, with a high near 35.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Trial Lk UT
 40.68°N 111.04°W (Elev. 10236 ft)
Last Update:
2:03 am MST Dec 24, 2025
Forecast Valid:
12pm MST Dec 24, 2025-6pm MST Dec 30, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation