Critical Fire Weather in the High Plains and Midwest; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central/southern High Plains and portions of the Midwest. Two Pacific storms will continue to bring heavy mountain snow and gusty winds to the western U.S. through Thursday. A swath of wintry weather, including heavy snow and a wintry mix, is expected from the Northern Plains to New England. Read More >

Current conditions at

CW8386 Thermopolis (C8386)

Lat: 43.64283°NLon: 108.227°WElev: 4419.52ft.

NA

38°F

3°C

Humidity 44%
Wind Speed N 0 MPH
Barometer 29.4 in (995.6 mb)
Dewpoint 18°F (-8°C)
Visibility NA
Last update 18 Feb 11:10 AM MST
Extended Forecast for

10 Miles ESE Lysite WY

Winter Weather Advisory February 18, 05:00pm until February 19, 11:00am
Click here for hazard details and duration
Winter Weather Advisory
  • Today

    Today: Snow showers likely, mainly after 4pm.  Mostly cloudy, with a high near 36. Breezy, with a south wind 17 to 21 mph becoming east southeast in the afternoon. Winds could gust as high as 30 mph.  Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.

    High: 36 °F

    Snow Showers
    Likely and
    Breezy

  • Tonight

    Tonight: Snow showers, mainly before 4am.  Patchy blowing snow before 8pm. Low around 9. Wind chill values as low as -5. Breezy, with an east wind 16 to 21 mph becoming north northwest 10 to 15 mph after midnight. Winds could gust as high as 31 mph.  Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 9 °F

    Snow Showers
    and Patchy
    Blowing Snow

  • Thursday

    Thursday: A 30 percent chance of snow showers, mainly before 8am.  Partly sunny, with a high near 19. Wind chill values as low as zero. Calm wind becoming west northwest 5 to 7 mph in the afternoon.  New snow accumulation of less than a half inch possible.

    High: 19 °F

    Chance Snow
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 2. Light and variable wind becoming west southwest around 6 mph after midnight.

    Low: 2 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of snow showers.  Partly sunny, with a high near 24. West wind 3 to 7 mph.

    High: 24 °F

    Slight Chance
    Snow Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 4. West southwest wind around 6 mph.

    Low: 4 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 29. West southwest wind 5 to 8 mph.

    High: 29 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 9.

    Low: 9 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

Detailed Forecast

Today
Snow showers likely, mainly after 4pm. Mostly cloudy, with a high near 36. Breezy, with a south wind 17 to 21 mph becoming east southeast in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow showers, mainly before 4am. Patchy blowing snow before 8pm. Low around 9. Wind chill values as low as -5. Breezy, with an east wind 16 to 21 mph becoming north northwest 10 to 15 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Thursday
A 30 percent chance of snow showers, mainly before 8am. Partly sunny, with a high near 19. Wind chill values as low as zero. Calm wind becoming west northwest 5 to 7 mph in the afternoon. New snow accumulation of less than a half inch possible.
Thursday Night
Partly cloudy, with a low around 2. Light and variable wind becoming west southwest around 6 mph after midnight.
Friday
A 20 percent chance of snow showers. Partly sunny, with a high near 24. West wind 3 to 7 mph.
Friday Night
Partly cloudy, with a low around 4. West southwest wind around 6 mph.
Saturday
Sunny, with a high near 29. West southwest wind 5 to 8 mph.
Saturday Night
Mostly clear, with a low around 9.
Sunday
Mostly sunny, with a high near 36.
Sunday Night
Partly cloudy, with a low around 18.
Monday
Sunny, with a high near 46. Breezy.
Monday Night
Partly cloudy, with a low around 27. Breezy.
Tuesday
Partly sunny, with a high near 46. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles ESE Lysite WY
 43.21°N 107.51°W (Elev. 5630 ft)
10:02 am MST Feb 18, 2026
11am MST Feb 18, 2026-6pm MST Feb 24, 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