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

CW8386 Thermopolis (C8386)

Lat: 43.642°NLon: 108.22633°WElev: 4426.0ft.

NA

57°F

14°C

Humidity 48%
Wind Speed N 12 MPH
Barometer 29.84 in (1010.5 mb)
Dewpoint 37°F (3°C)
Visibility NA
Last update 24 Dec 10:10 PM MST
Extended Forecast for

10 Miles ESE Lysite WY

  • Tonight

    Tonight: Partly cloudy, with a low around 41. Windy, with a south southwest wind 23 to 25 mph, with gusts as high as 36 mph.

    Low: 41 °F

    Partly Cloudy
    and Windy

  • Christmas Day

    Christmas Day: Isolated showers before 9am. Mostly cloudy, then gradually becoming sunny, with a high near 55. Windy, with a southwest wind 22 to 28 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.

    High: 55 °F

    Windy.
    Isolated
    Showers then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 35. Breezy, with a southwest wind around 18 mph, with gusts as high as 25 mph.

    Low: 35 °F

    Mostly Clear
    and Breezy

  • Friday

    Friday: Isolated showers after 11am. Mostly sunny, with a high near 49. Windy, with a southwest wind 20 to 26 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.

    High: 49 °F

    Isolated
    Showers and
    Windy

  • Friday Night

    Friday Night: A chance of rain showers, mixing with snow after 8pm, then gradually ending. Mostly cloudy, with a low around 28. Breezy, with a southwest wind 16 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.

    Low: 28 °F

    Breezy.
    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 41. Breezy, with a west southwest wind 15 to 18 mph becoming north northwest in the afternoon. Winds could gust as high as 28 mph.

    High: 41 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: A 40 percent chance of snow showers, mainly before 11pm. Mostly cloudy, with a low around 9. North wind 8 to 11 mph.

    Low: 9 °F

    Chance Snow
    Showers

  • Sunday

    Sunday: Sunny, with a high near 27.

    High: 27 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 11.

    Low: 11 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 41. Windy, with a south southwest wind 23 to 25 mph, with gusts as high as 36 mph.
Christmas Day
Isolated showers before 9am. Mostly cloudy, then gradually becoming sunny, with a high near 55. Windy, with a southwest wind 22 to 28 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 35. Breezy, with a southwest wind around 18 mph, with gusts as high as 25 mph.
Friday
Isolated showers after 11am. Mostly sunny, with a high near 49. Windy, with a southwest wind 20 to 26 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.
Friday Night
A chance of rain showers, mixing with snow after 8pm, then gradually ending. Mostly cloudy, with a low around 28. Breezy, with a southwest wind 16 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 41. Breezy, with a west southwest wind 15 to 18 mph becoming north northwest in the afternoon. Winds could gust as high as 28 mph.
Saturday Night
A 40 percent chance of snow showers, mainly before 11pm. Mostly cloudy, with a low around 9. North wind 8 to 11 mph.
Sunday
Sunny, with a high near 27.
Sunday Night
Mostly clear, with a low around 11.
Monday
Sunny, with a high near 35.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Sunny, with a high near 41.
Tuesday Night
Partly cloudy, with a low around 21.
Wednesday
Mostly sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles ESE Lysite WY
 43.21°N 107.51°W (Elev. 5630 ft)
Last Update:
9:17 pm MST Dec 24, 2025
Forecast Valid:
10pm MST Dec 24, 2025-6pm MST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation