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

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 0 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 1°F (-17°C)
Visibility NA
Last update 21 Jan 07:40 AM MST
Extended Forecast for

5 Miles ENE Lysite WY

  • Today

    Today: Sunny, with a high near 31. Calm wind becoming north 5 to 8 mph in the afternoon.

    High: 31 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 9. East northeast wind 3 to 5 mph.

    Low: 9 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 26. East wind 5 to 7 mph becoming north northeast in the afternoon.

    High: 26 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow showers. Mostly cloudy, with a low around 4. Wind chill values as low as -5. East wind around 9 mph.

    Low: 4 °F

    Slight Chance
    Snow Showers

  • Friday

    Friday: A 20 percent chance of snow showers. Mostly cloudy, with a high near 16. East wind 5 to 8 mph becoming north northeast in the afternoon.

    High: 16 °F

    Slight Chance
    Snow Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around -3. North northeast wind 3 to 7 mph.

    Low: -3 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 21. Light and variable wind becoming west around 5 mph in the afternoon.

    High: 21 °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 25.

    High: 25 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 31. Calm wind becoming north 5 to 8 mph in the afternoon.
Tonight
Partly cloudy, with a low around 9. East northeast wind 3 to 5 mph.
Thursday
Mostly sunny, with a high near 26. East wind 5 to 7 mph becoming north northeast in the afternoon.
Thursday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 4. Wind chill values as low as -5. East wind around 9 mph.
Friday
A 20 percent chance of snow showers. Mostly cloudy, with a high near 16. East wind 5 to 8 mph becoming north northeast in the afternoon.
Friday Night
Partly cloudy, with a low around -3. North northeast wind 3 to 7 mph.
Saturday
Sunny, with a high near 21. Light and variable wind becoming west around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 2.
Sunday
Mostly sunny, with a high near 25.
Sunday Night
Partly cloudy, with a low around 7.
Monday
Sunny, with a high near 36.
Monday Night
Partly cloudy, with a low around 14.
Tuesday
Mostly sunny, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ENE Lysite WY
 43.29°N 107.64°W (Elev. 5400 ft)
Last Update:
7:47 am MST Jan 21, 2026
Forecast Valid:
7am MST Jan 21, 2026-6pm MST Jan 27, 2026
 
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