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

Ogden-Hinckley Airport (KOGD)

Lat: 41.19406°NLon: 112.01681°WElev: 4440.0ft.

Partly Cloudy

50°F

10°C

Humidity 43%
Wind Speed S 17 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 25 Dec 11:00 PM MST
Extended Forecast for

Roy UT

  • Tonight

    Tonight: A 40 percent chance of rain, mainly after 2am. Mostly cloudy, with a low around 44. South wind around 15 mph.

    Low: 44 °F

    Chance Rain

  • Friday

    Friday: A chance of rain, then showers and possibly a thunderstorm after 2pm. High near 52. South wind around 14 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.

    High: 52 °F

    Chance Rain
    then Showers

  • Friday Night

    Friday Night: Rain before 11pm, then rain and snow likely. Some thunder is also possible. Low around 34. South wind 6 to 9 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain/Snow

  • Saturday

    Saturday: Rain and snow likely, becoming all snow after 8am. Mostly cloudy, with a high near 42. South wind 6 to 8 mph becoming west northwest in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Saturday Night

    Saturday Night: A 40 percent chance of snow before 11pm. Mostly cloudy, with a low around 20. North northwest wind 7 to 9 mph. New snow accumulation of less than a half inch possible.

    Low: 20 °F

    Chance Snow
    then Partly
    Cloudy

  • Sunday

    Sunday: Sunny, with a high near 33.

    High: 33 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 17.

    Low: 17 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 35.

    High: 35 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 21.

    Low: 21 °F

    Mostly Clear

Detailed Forecast

Tonight
A 40 percent chance of rain, mainly after 2am. Mostly cloudy, with a low around 44. South wind around 15 mph.
Friday
A chance of rain, then showers and possibly a thunderstorm after 2pm. High near 52. South wind around 14 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Friday Night
Rain before 11pm, then rain and snow likely. Some thunder is also possible. Low around 34. South wind 6 to 9 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Saturday
Rain and snow likely, becoming all snow after 8am. Mostly cloudy, with a high near 42. South wind 6 to 8 mph becoming west northwest in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Saturday Night
A 40 percent chance of snow before 11pm. Mostly cloudy, with a low around 20. North northwest wind 7 to 9 mph. New snow accumulation of less than a half inch possible.
Sunday
Sunny, with a high near 33.
Sunday Night
Mostly clear, with a low around 17.
Monday
Sunny, with a high near 35.
Monday Night
Mostly clear, with a low around 21.
Tuesday
Mostly sunny, with a high near 39.
Tuesday Night
Mostly clear, with a low around 24.
Wednesday
Sunny, with a high near 44.
Wednesday Night
Partly cloudy, with a low around 29.
New Year's Day
A slight chance of rain. Mostly sunny, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Roy UT
 41.18°N 112.03°W (Elev. 4472 ft)
Last Update:
2:04 pm MST Dec 25, 2025
Forecast Valid:
11pm MST Dec 25, 2025-6pm MST Jan 1, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation