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

I80/US30 - Peru Hill (KCMS)

Lat: 41.54958°NLon: 109.60197°WElev: 6407.0ft.

NA

39°F

4°C

Humidity 49%
Wind Speed SE 4 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility 1.24 mi
Wind Chill36°F (2°C)
Last update 25 Dec 06:56 PM MST
Extended Forecast for

Farson WY

  • Tonight

    Tonight: Partly cloudy, with a low around 26. South southwest wind 8 to 10 mph.

    Low: 26 °F

    Partly Cloudy

  • Friday

    Friday: Scattered snow showers before 1pm, then scattered rain and snow showers. Mostly cloudy, with a high near 46. Windy, with a southwest wind 9 to 14 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 46 °F

    Scattered
    Rain/Snow and
    Windy

  • Friday Night

    Friday Night: Snow showers likely, mainly before 9pm. Mostly cloudy, with a low around 21. Breezy, with a west southwest wind 9 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 21 °F

    Snow Showers
    Likely and
    Breezy

  • Saturday

    Saturday: A 20 percent chance of snow showers. Partly sunny, with a high near 35. Breezy, with a west wind 9 to 17 mph, with gusts as high as 29 mph.

    High: 35 °F

    Slight Chance
    Snow Showers
    and Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 4. West northwest wind 6 to 11 mph, with gusts as high as 21 mph.

    Low: 4 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 25. West northwest wind 5 to 9 mph.

    High: 25 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around -1. West wind 3 to 6 mph.

    Low: -1 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 27.

    High: 27 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 6.

    Low: 6 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 26. South southwest wind 8 to 10 mph.
Friday
Scattered snow showers before 1pm, then scattered rain and snow showers. Mostly cloudy, with a high near 46. Windy, with a southwest wind 9 to 14 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Friday Night
Snow showers likely, mainly before 9pm. Mostly cloudy, with a low around 21. Breezy, with a west southwest wind 9 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Saturday
A 20 percent chance of snow showers. Partly sunny, with a high near 35. Breezy, with a west wind 9 to 17 mph, with gusts as high as 29 mph.
Saturday Night
Mostly cloudy, with a low around 4. West northwest wind 6 to 11 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 25. West northwest wind 5 to 9 mph.
Sunday Night
Mostly clear, with a low around -1. West wind 3 to 6 mph.
Monday
Sunny, with a high near 27.
Monday Night
Mostly clear, with a low around 6.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
Mostly clear, with a low around 10.
Wednesday
Sunny, with a high near 39.
Wednesday Night
Mostly clear, with a low around 13.
New Year's Day
Mostly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Farson WY
 42.11°N 109.44°W (Elev. 6598 ft)
Last Update:
6:47 pm MST Dec 25, 2025
Forecast Valid:
7pm MST Dec 25, 2025-6pm MST Jan 1, 2026
 
Forecast Discussion
 
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