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

Provo Municipal Airport (KPVU)

Lat: 40.2239°NLon: 111.7253°WElev: 4495.0ft.

Overcast

53°F

12°C

Humidity 68%
Wind Speed NNE 4 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 25 Dec 03:56 AM MST
Extended Forecast for

3 Miles ENE Mapleton UT

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

  • Overnight

    Overnight: Rain. Steady temperature around 48. South wind around 13 mph. Chance of precipitation is 80%.

    Low: 48 °F

    Rain

  • Christmas Day

    Christmas Day: Showers and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms between 8am and 11am, then a chance of rain after 11am. High near 52. West southwest wind 11 to 13 mph. Chance of precipitation is 80%.

    High: 52 °F

    Showers then
    Chance Rain

  • Thursday Night

    Thursday Night: A slight chance of rain before 11pm, then a slight chance of rain after 2am. Increasing clouds, with a low around 40. South wind around 11 mph. Chance of precipitation is 20%.

    Low: 40 °F

    Slight Chance
    Rain

  • Friday

    Friday: Rain, mainly after 11am. High near 44. South southwest wind 10 to 13 mph. Chance of precipitation is 90%.

    High: 44 °F

    Rain

  • Friday Night

    Friday Night: Rain showers before 11pm, then rain and snow showers between 11pm and 2am, then snow showers after 2am. Some thunder is also possible. Low around 34. Southwest wind around 11 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    Low: 34 °F

    Rain/Snow

  • Saturday

    Saturday: Snow. High near 35. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 35 °F

    Snow

  • Saturday Night

    Saturday Night: A 40 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 21. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Chance Snow

  • Sunday

    Sunday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 18.

    Low: 18 °F

    Mostly Clear

Detailed Forecast

Overnight
Rain. Steady temperature around 48. South wind around 13 mph. Chance of precipitation is 80%.
Christmas Day
Showers and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms between 8am and 11am, then a chance of rain after 11am. High near 52. West southwest wind 11 to 13 mph. Chance of precipitation is 80%.
Thursday Night
A slight chance of rain before 11pm, then a slight chance of rain after 2am. Increasing clouds, with a low around 40. South wind around 11 mph. Chance of precipitation is 20%.
Friday
Rain, mainly after 11am. High near 44. South southwest wind 10 to 13 mph. Chance of precipitation is 90%.
Friday Night
Rain showers before 11pm, then rain and snow showers between 11pm and 2am, then snow showers after 2am. Some thunder is also possible. Low around 34. Southwest wind around 11 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Saturday
Snow. High near 35. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Saturday Night
A 40 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 21. New snow accumulation of less than a half inch possible.
Sunday
Mostly sunny, with a high near 27.
Sunday Night
Mostly clear, with a low around 18.
Monday
Sunny, with a high near 32.
Monday Night
Mostly clear, with a low around 23.
Tuesday
Mostly sunny, with a high near 39.
Tuesday Night
Mostly clear, with a low around 29.
Wednesday
Sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Mapleton UT
 40.14°N 111.54°W (Elev. 5896 ft)
Last Update:
2:04 am MST Dec 25, 2025
Forecast Valid:
4am MST Dec 25, 2025-6pm MST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation