National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

Current conditions at

UPPER SAND WASH (USWU1)

Lat: 39.70819°NLon: 109.441°WElev: 6469.0ft.

NA

36°F

2°C

Humidity 83%
Wind Speed W 1 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 01 Jan 05:27 PM MST
Extended Forecast for

18 Miles SSW Bonanza UT

  • Tonight

    Tonight: A 30 percent chance of showers, mainly between 9pm and 3am. Mostly cloudy, with a low around 33. South wind 5 to 10 mph.

    Low: 33 °F

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 47. South wind 5 to 10 mph becoming west in the afternoon.

    High: 47 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 30. South wind around 5 mph.

    Low: 30 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 46. South wind around 5 mph.

    High: 46 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 31. South wind around 5 mph.

    Low: 31 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers after 11pm. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers. Mostly cloudy, with a high near 48.

    High: 48 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of rain and snow showers, mainly before 11pm. Mostly cloudy, with a low around 30.

    Low: 30 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
A 30 percent chance of showers, mainly between 9pm and 3am. Mostly cloudy, with a low around 33. South wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 47. South wind 5 to 10 mph becoming west in the afternoon.
Friday Night
Partly cloudy, with a low around 30. South wind around 5 mph.
Saturday
Partly sunny, with a high near 46. South wind around 5 mph.
Saturday Night
Mostly cloudy, with a low around 31. South wind around 5 mph.
Sunday
Partly sunny, with a high near 50.
Sunday Night
A 30 percent chance of showers after 11pm. Mostly cloudy, with a low around 34.
Monday
A chance of showers. Mostly cloudy, with a high near 48.
Monday Night
A chance of rain and snow showers, mainly before 11pm. Mostly cloudy, with a low around 30.
Tuesday
Partly sunny, with a high near 45.
Tuesday Night
Partly cloudy, with a low around 27.
Wednesday
Partly sunny, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
18 Miles SSW Bonanza UT
 39.78°N 109.32°W (Elev. 5997 ft)
Last Update:
5:27 pm MST Jan 1, 2026
Forecast Valid:
5pm MST Jan 1, 2026-6pm MST Jan 8, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

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Chance of Precipitation