Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

Current conditions at

CW8386 Thermopolis (C8386)

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

NA

27°F

-3°C

Humidity 65%
Wind Speed N 4 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 17°F (-8°C)
Visibility NA
Wind Chill22°F (-6°C)
Last update 07 Dec 09:55 PM MST
Extended Forecast for

Thermopolis WY

  • Tonight

    Tonight: Partly cloudy, with a low around 23. South southeast wind 6 to 8 mph becoming northwest after midnight.

    Low: 23 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 46. South wind 6 to 8 mph becoming north northeast in the afternoon.

    High: 46 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34. South southwest wind 9 to 14 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 53. South southwest wind 9 to 13 mph becoming west northwest in the afternoon.

    High: 53 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain showers before 11pm, then a chance of rain and snow showers.  Mostly cloudy, with a low around 28. North northwest wind around 6 mph becoming south in the evening.  Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 28 °F

    Chance
    Rain/Snow

  • Wednesday

    Wednesday: A chance of rain and snow showers before 11am, then a chance of rain showers.  Partly sunny, with a high near 53. South southwest wind 6 to 14 mph becoming west in the afternoon. Winds could gust as high as 23 mph.  Chance of precipitation is 50%.

    High: 53 °F

    Chance
    Rain/Snow
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of rain showers before 11pm, then a chance of rain and snow showers.  Mostly cloudy, with a low around 28. Northwest wind around 10 mph.  Chance of precipitation is 50%.

    Low: 28 °F

    Chance
    Rain/Snow

  • Thursday

    Thursday: A chance of rain and snow showers.  Mostly cloudy, with a high near 43. Chance of precipitation is 50%.

    High: 43 °F

    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of rain and snow showers before 11pm, then a slight chance of snow showers.  Mostly cloudy, with a low around 17. Chance of precipitation is 30%.

    Low: 17 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 23. South southeast wind 6 to 8 mph becoming northwest after midnight.
Monday
Mostly sunny, with a high near 46. South wind 6 to 8 mph becoming north northeast in the afternoon.
Monday Night
Mostly cloudy, with a low around 34. South southwest wind 9 to 14 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 53. South southwest wind 9 to 13 mph becoming west northwest in the afternoon.
Tuesday Night
A chance of rain showers before 11pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 28. North northwest wind around 6 mph becoming south in the evening. Chance of precipitation is 50%. Little or no snow accumulation expected.
Wednesday
A chance of rain and snow showers before 11am, then a chance of rain showers. Partly sunny, with a high near 53. South southwest wind 6 to 14 mph becoming west in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 50%.
Wednesday Night
A chance of rain showers before 11pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 28. Northwest wind around 10 mph. Chance of precipitation is 50%.
Thursday
A chance of rain and snow showers. Mostly cloudy, with a high near 43. Chance of precipitation is 50%.
Thursday Night
A chance of rain and snow showers before 11pm, then a slight chance of snow showers. Mostly cloudy, with a low around 17. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 34.
Friday Night
Partly cloudy, with a low around 18.
Saturday
Mostly sunny, with a high near 45.
Saturday Night
Partly cloudy, with a low around 22.
Sunday
Mostly sunny, with a high near 48.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Thermopolis WY
 43.64°N 108.2°W (Elev. 4400 ft)
8:31 pm MST Dec 7, 2025
10pm MST Dec 7, 2025-6pm MST Dec 14, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database