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

Nephi Municipal Airport (KU14)

Lat: 39.7386°NLon: 111.8722°WElev: 5022.0ft.

Overcast

57°F

14°C

Humidity 50%
Wind Speed SSW 20 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 24 Dec 09:55 PM MST
Extended Forecast for

6 Miles SSW Mill Fork UT

Winter Weather Advisory December 26, 11:00am until December 28, 05:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: Rain, mainly after 11pm. Low around 36. Breezy, with a south southwest wind 18 to 22 mph. Chance of precipitation is 90%.

    Low: 36 °F

    Rain and
    Breezy

  • Christmas Day

    Christmas Day: Rain, possibly mixed with snow showers, becoming all snow after 11am. Some thunder is also possible. High near 43. South southwest wind 14 to 16 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 43 °F

    Rain/Snow
    then Snow
    Showers
    Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 31. South southwest wind 13 to 15 mph. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Chance Snow

  • Friday

    Friday: Snow, mainly after 11am. High near 37. South southwest wind 14 to 16 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 37 °F

    Snow

  • Friday Night

    Friday Night: Snow. Low around 28. Southwest wind 14 to 18 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 28 °F

    Snow

  • Saturday

    Saturday: Snow. High near 30. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 30 °F

    Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 14. New snow accumulation of less than a half inch possible.

    Low: 14 °F

    Chance Snow

  • Sunday

    Sunday: Mostly sunny, with a high near 25.

    High: 25 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 13.

    Low: 13 °F

    Mostly Clear

Detailed Forecast

Tonight
Rain, mainly after 11pm. Low around 36. Breezy, with a south southwest wind 18 to 22 mph. Chance of precipitation is 90%.
Christmas Day
Rain, possibly mixed with snow showers, becoming all snow after 11am. Some thunder is also possible. High near 43. South southwest wind 14 to 16 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 31. South southwest wind 13 to 15 mph. New snow accumulation of less than a half inch possible.
Friday
Snow, mainly after 11am. High near 37. South southwest wind 14 to 16 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Friday Night
Snow. Low around 28. Southwest wind 14 to 18 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Saturday
Snow. High near 30. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 14. New snow accumulation of less than a half inch possible.
Sunday
Mostly sunny, with a high near 25.
Sunday Night
Mostly clear, with a low around 13.
Monday
Sunny, with a high near 31.
Monday Night
Mostly clear, with a low around 18.
Tuesday
Sunny, with a high near 38.
Tuesday Night
Mostly clear, with a low around 23.
Wednesday
A slight chance of snow. Sunny, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSW Mill Fork UT
 39.89°N 111.35°W (Elev. 8599 ft)
Last Update:
2:04 pm MST Dec 24, 2025
Forecast Valid:
10pm MST Dec 24, 2025-6pm MST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation