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 >

Current conditions at

Nephi Municipal Airport (KU14)

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

Partly Cloudy

52°F

11°C

Humidity 81%
Wind Speed S 12 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 25 Dec 02:15 AM MST
Extended Forecast for

Manti Ephram Arpt UT

  • Overnight

    Overnight: Rain likely. Cloudy, with a low around 38. South southwest wind around 7 mph. Chance of precipitation is 70%.

    Low: 38 °F

    Rain Likely

  • Christmas Day

    Christmas Day: Showers and thunderstorms likely before 11am, then a chance of rain, mainly after 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 62. South southwest wind 6 to 15 mph. Chance of precipitation is 60%.

    High: 62 °F

    Showers
    Likely then
    Chance Rain

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 28. South wind 5 to 10 mph.

    Low: 28 °F

    Increasing
    Clouds

  • Friday

    Friday: Rain likely after 11am. Mostly cloudy, with a high near 52. Southwest wind 6 to 13 mph. Chance of precipitation is 60%.

    High: 52 °F

    Rain Likely

  • Friday Night

    Friday Night: Rain before 2am, then rain, possibly mixed with snow. Low around 26. West southwest wind 6 to 10 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Rain then
    Rain/Snow

  • Saturday

    Saturday: Rain and snow, becoming all snow after 8am. High near 42. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Rain/Snow
    then Snow
    Likely

  • Saturday Night

    Saturday Night: A 40 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 10. New snow accumulation of less than a half inch possible.

    Low: 10 °F

    Chance Snow

  • Sunday

    Sunday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 7.

    Low: 7 °F

    Mostly Clear

Detailed Forecast

Overnight
Rain likely. Cloudy, with a low around 38. South southwest wind around 7 mph. Chance of precipitation is 70%.
Christmas Day
Showers and thunderstorms likely before 11am, then a chance of rain, mainly after 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 62. South southwest wind 6 to 15 mph. Chance of precipitation is 60%.
Thursday Night
Increasing clouds, with a low around 28. South wind 5 to 10 mph.
Friday
Rain likely after 11am. Mostly cloudy, with a high near 52. Southwest wind 6 to 13 mph. Chance of precipitation is 60%.
Friday Night
Rain before 2am, then rain, possibly mixed with snow. Low around 26. West southwest wind 6 to 10 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Saturday
Rain and snow, becoming all snow after 8am. High near 42. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Saturday Night
A 40 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 10. New snow accumulation of less than a half inch possible.
Sunday
Mostly sunny, with a high near 33.
Sunday Night
Mostly clear, with a low around 7.
Monday
Sunny, with a high near 39.
Monday Night
Clear, with a low around 15.
Tuesday
Sunny, with a high near 48.
Tuesday Night
Mostly clear, with a low around 20.
Wednesday
Mostly sunny, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Manti Ephram Arpt UT
 39.34°N 111.61°W (Elev. 5499 ft)
Last Update:
2:04 am MST Dec 25, 2025
Forecast Valid:
2am MST Dec 25, 2025-6pm MST Dec 31, 2025
 
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Additional Resources

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Chance of Precipitation