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

55°F

13°C

Humidity 40%
Wind Speed ESE 21 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 24 Dec 09:36 AM MST
Extended Forecast for

Manti Ephram Arpt UT

  • Today

    Today: A 30 percent chance of rain after 11am. Mostly cloudy, with a high near 59. East northeast wind 8 to 13 mph becoming south in the morning.

    High: 59 °F

    Chance Rain

  • Tonight

    Tonight: Rain, mainly after 11pm. Low around 37. South southwest wind 6 to 10 mph. Chance of precipitation is 80%.

    Low: 37 °F

    Rain

  • Christmas Day

    Christmas Day: Rain, mainly before 11am. High near 58. South southwest wind 6 to 14 mph. Chance of precipitation is 80%.

    High: 58 °F

    Rain then
    Chance Rain

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 28. South wind 6 to 10 mph.

    Low: 28 °F

    Partly Cloudy

  • Friday

    Friday: Rain likely, mainly between 11am and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 51. South wind 6 to 13 mph. Chance of precipitation is 60%.

    High: 51 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Rain likely before 11pm, then rain likely, possibly mixed with snow between 11pm and 5am, then a slight chance of snow after 5am. Some thunder is also possible. Mostly cloudy, with a low around 24. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Rain/Snow
    Likely

  • Saturday

    Saturday: Snow likely before 8am, then rain and snow likely. Mostly cloudy, with a high near 43. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Rain/Snow
    Likely

  • Saturday Night

    Saturday Night: A slight chance of rain and snow before 8pm, then a slight chance of snow between 8pm and 11pm. Partly cloudy, with a low around 14.

    Low: 14 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of rain after 11am. Mostly cloudy, with a high near 59. East northeast wind 8 to 13 mph becoming south in the morning.
Tonight
Rain, mainly after 11pm. Low around 37. South southwest wind 6 to 10 mph. Chance of precipitation is 80%.
Christmas Day
Rain, mainly before 11am. High near 58. South southwest wind 6 to 14 mph. Chance of precipitation is 80%.
Thursday Night
Partly cloudy, with a low around 28. South wind 6 to 10 mph.
Friday
Rain likely, mainly between 11am and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 51. South wind 6 to 13 mph. Chance of precipitation is 60%.
Friday Night
Rain likely before 11pm, then rain likely, possibly mixed with snow between 11pm and 5am, then a slight chance of snow after 5am. Some thunder is also possible. Mostly cloudy, with a low around 24. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Saturday
Snow likely before 8am, then rain and snow likely. Mostly cloudy, with a high near 43. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday Night
A slight chance of rain and snow before 8pm, then a slight chance of snow between 8pm and 11pm. Partly cloudy, with a low around 14.
Sunday
Sunny, with a high near 41.
Sunday Night
Mostly clear, with a low around 15.
Monday
Sunny, with a high near 46.
Monday Night
Mostly clear, with a low around 19.
Tuesday
Sunny, with a high near 50.
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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:
2:03 am MST Dec 24, 2025
Forecast Valid:
10am MST Dec 24, 2025-6pm MST Dec 30, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation