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

South Valley Regional Airport (KSVR)

Lat: 40.6196°NLon: 111.99016°WElev: 4596.0ft.

Partly Cloudy

54°F

12°C

Humidity 62%
Wind Speed S 19 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 25 Dec 06:35 AM MST
Extended Forecast for

Magna UT

  • Christmas Day

    Christmas Day: Rain likely and possibly a thunderstorm before 2pm, then a chance of rain. Partly sunny, with a high near 61. South southwest wind 18 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 70%.

    High: 61 °F

    Showers
    Likely then
    Chance Rain

  • Tonight

    Tonight: A 40 percent chance of rain, mainly after 2am. Mostly cloudy, with a low around 46. South wind 18 to 20 mph, with gusts as high as 32 mph.

    Low: 46 °F

    Chance Rain

  • Friday

    Friday: Rain, mainly between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 53. Breezy, with a south wind 17 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 80%.

    High: 53 °F

    Showers and
    Breezy

  • Friday Night

    Friday Night: Rain showers before 5am, then rain likely, possibly mixed with snow showers. Some thunder is also possible. Low around 36. South wind 6 to 11 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 36 °F

    Showers then
    Rain/Snow
    Likely

  • Saturday

    Saturday: Rain and snow likely before 11am, then a chance of snow. Mostly cloudy, with a high near 42. Light and variable wind becoming west northwest 5 to 10 mph in the morning. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Rain/Snow
    Likely then
    Chance Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow before 11pm. Mostly cloudy, with a low around 24. New snow accumulation of less than one inch possible.

    Low: 24 °F

    Chance Snow
    then Mostly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 20.

    Low: 20 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 36.

    High: 36 °F

    Sunny

Detailed Forecast

Christmas Day
Rain likely and possibly a thunderstorm before 2pm, then a chance of rain. Partly sunny, with a high near 61. South southwest wind 18 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 70%.
Tonight
A 40 percent chance of rain, mainly after 2am. Mostly cloudy, with a low around 46. South wind 18 to 20 mph, with gusts as high as 32 mph.
Friday
Rain, mainly between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 53. Breezy, with a south wind 17 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 80%.
Friday Night
Rain showers before 5am, then rain likely, possibly mixed with snow showers. Some thunder is also possible. Low around 36. South wind 6 to 11 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Saturday
Rain and snow likely before 11am, then a chance of snow. Mostly cloudy, with a high near 42. Light and variable wind becoming west northwest 5 to 10 mph in the morning. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday Night
A 30 percent chance of snow before 11pm. Mostly cloudy, with a low around 24. New snow accumulation of less than one inch possible.
Sunday
Mostly sunny, with a high near 35.
Sunday Night
Mostly clear, with a low around 20.
Monday
Sunny, with a high near 36.
Monday Night
Mostly clear, with a low around 23.
Tuesday
Mostly sunny, with a high near 42.
Tuesday Night
Mostly clear, with a low around 27.
Wednesday
Mostly sunny, with a high near 45.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Magna UT
 40.69°N 112.09°W (Elev. 4482 ft)
Last Update:
2:04 am MST Dec 25, 2025
Forecast Valid:
7am MST Dec 25, 2025-6pm MST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation