Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Hazardous Weather Conditions

Current conditions at

CW8386 Thermopolis (C8386)

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

NA

6°F

-14°C

Humidity 78%
Wind Speed N 3 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 1°F (-17°C)
Visibility NA
Last update 21 Jan 05:40 AM MST
Extended Forecast for

10 Miles ESE Lysite WY

  • Today

    Today: Sunny, with a high near 31. West wind 5 to 9 mph becoming north northwest in the afternoon.

    High: 31 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 9. Light and variable wind becoming east around 5 mph after midnight.

    Low: 9 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 25. Wind chill values as low as zero. East wind 5 to 9 mph.

    High: 25 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow showers.  Mostly cloudy, with a low around 2. Wind chill values as low as -10. East wind around 11 mph.

    Low: 2 °F

    Slight Chance
    Snow Showers

  • Friday

    Friday: A 30 percent chance of snow showers, mainly before 11am.  Mostly cloudy, with a high near 15. East wind 7 to 9 mph.

    High: 15 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around -3. Northeast wind 5 to 8 mph becoming light and variable  after midnight.

    Low: -3 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 22. West wind 3 to 8 mph.

    High: 22 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 2.

    Low: 2 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 24.

    High: 24 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 31. West wind 5 to 9 mph becoming north northwest in the afternoon.
Tonight
Partly cloudy, with a low around 9. Light and variable wind becoming east around 5 mph after midnight.
Thursday
Mostly sunny, with a high near 25. Wind chill values as low as zero. East wind 5 to 9 mph.
Thursday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 2. Wind chill values as low as -10. East wind around 11 mph.
Friday
A 30 percent chance of snow showers, mainly before 11am. Mostly cloudy, with a high near 15. East wind 7 to 9 mph.
Friday Night
Partly cloudy, with a low around -3. Northeast wind 5 to 8 mph becoming light and variable after midnight.
Saturday
Sunny, with a high near 22. West wind 3 to 8 mph.
Saturday Night
Partly cloudy, with a low around 2.
Sunday
Mostly sunny, with a high near 24.
Sunday Night
Mostly clear, with a low around 7.
Monday
Sunny, with a high near 36.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Mostly sunny, with a high near 40.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles ESE Lysite WY
 43.21°N 107.51°W (Elev. 5630 ft)
5:01 am MST Jan 21, 2026
5am MST Jan 21, 2026-6pm MST Jan 27, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database