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.

Overcast

59°F

15°C

Humidity 47%
Wind Speed SSE 19 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 24 Dec 02:35 PM MST
Extended Forecast for

Magna UT

  • This Afternoon

    This Afternoon: A 20 percent chance of rain. Partly sunny, with a high near 61. South wind around 15 mph.

    High: 61 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Rain likely, mainly after 11pm. Mostly cloudy, with a low around 51. South wind around 18 mph, with gusts as high as 32 mph. Chance of precipitation is 70%.

    Low: 51 °F

    Rain Likely

  • Christmas Day

    Christmas Day: Rain likely, mainly before 11am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 58. Breezy, with a south southeast wind 18 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 70%.

    High: 58 °F

    Breezy. Rain
    Likely then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 46. South wind 17 to 21 mph, with gusts as high as 33 mph.

    Low: 46 °F

    Chance Rain

  • Friday

    Friday: Rain, mainly between 11am and 5pm, then showers and possibly a thunderstorm after 5pm. High near 53. Breezy, with a south wind 16 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 80%.

    High: 53 °F

    Showers and
    Breezy

  • Friday Night

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

    Low: 36 °F

    Showers then
    Rain/Snow
    Likely

  • Saturday

    Saturday: A chance of rain and snow before 11am, then a chance of snow between 11am and 2pm, then a chance of rain and snow after 2pm. Partly sunny, with a high near 42. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Chance
    Rain/Snow

  • 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 23.

    Low: 23 °F

    Slight Chance
    Rain/Snow
    then Partly
    Cloudy

  • Sunday

    Sunday: Sunny, with a high near 36.

    High: 36 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of rain. Partly sunny, with a high near 61. South wind around 15 mph.
Tonight
Rain likely, mainly after 11pm. Mostly cloudy, with a low around 51. South wind around 18 mph, with gusts as high as 32 mph. Chance of precipitation is 70%.
Christmas Day
Rain likely, mainly before 11am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 58. Breezy, with a south southeast wind 18 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 70%.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 46. South wind 17 to 21 mph, with gusts as high as 33 mph.
Friday
Rain, mainly between 11am and 5pm, then showers and possibly a thunderstorm after 5pm. High near 53. Breezy, with a south wind 16 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 80%.
Friday Night
Rain before 5am, then rain likely, possibly mixed with snow. Some thunder is also possible. Low around 36. Chance of precipitation is 90%. Little or no snow accumulation expected.
Saturday
A chance of rain and snow before 11am, then a chance of snow between 11am and 2pm, then a chance of rain and snow after 2pm. Partly sunny, with a high near 42. Chance of precipitation is 50%. 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 23.
Sunday
Sunny, with a high near 36.
Sunday Night
Mostly clear, with a low around 21.
Monday
Sunny, with a high near 38.
Monday Night
Mostly clear, with a low around 23.
Tuesday
Sunny, with a high near 41.
Tuesday Night
Mostly clear, with a low around 27.
Wednesday
Sunny, with a high near 46.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Magna UT
 40.69°N 112.07°W (Elev. 4413 ft)
Last Update:
2:04 pm MST Dec 24, 2025
Forecast Valid:
3pm MST Dec 24, 2025-6pm MST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation