Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

Yellowstone Lake (KP60)

Lat: 44.54444°NLon: 110.42111°WElev: 7835.0ft.

NA

24°F

-4°C

Humidity 77%
Wind Speed N 0 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 18°F (-8°C)
Visibility NA
Last update 09 Dec 10:56 PM MST
Extended Forecast for

Lake WY

Winter Storm Warning December 9, 11:28pm until December 10, 05:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning December 9, 11:28pm until December 10, 05:00pm

    NOW until 5:00pm Wed

    Winter Storm Warning

  • Tonight

    Low: 23 °F

    Snow Showers

  • Wednesday

    Wednesday: Rain and snow showers before 3pm, then rain showers likely between 3pm and 5pm, then a chance of rain and snow showers after 5pm.  Snow level rising to 8500 feet in the afternoon. High near 38. West southwest wind 9 to 11 mph.  Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 38 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: A chance of rain showers before 7pm, then a chance of rain and snow showers between 7pm and 10pm, then a chance of snow showers after 10pm.  Mostly cloudy, with a low around 28. Southwest wind around 10 mph.  Chance of precipitation is 30%.

    Low: 28 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Thursday

    Thursday: A 30 percent chance of snow showers, mainly after 11am.  Mostly cloudy, with a high near 36. Southwest wind around 8 mph.

    High: 36 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of snow showers.  Mostly cloudy, with a low around 28. West southwest wind 6 to 8 mph.  New snow accumulation of less than one inch possible.

    Low: 28 °F

    Chance Snow
    Showers

  • Friday

    Friday: A 40 percent chance of snow showers, mainly before 11am.  Mostly cloudy, with a high near 35. West southwest wind around 8 mph.

    High: 35 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 20. Southwest wind around 8 mph.

    Low: 20 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow showers before 11am.  Partly sunny, with a high near 34.

    High: 34 °F

    Slight Chance
    Snow Showers
    then Mostly
    Sunny

Detailed Forecast

Tonight
Snow showers, mainly after midnight. Low around 23. Southwest wind 5 to 8 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 3 inches possible.
Wednesday
Rain and snow showers before 3pm, then rain showers likely between 3pm and 5pm, then a chance of rain and snow showers after 5pm. Snow level rising to 8500 feet in the afternoon. High near 38. West southwest wind 9 to 11 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Wednesday Night
A chance of rain showers before 7pm, then a chance of rain and snow showers between 7pm and 10pm, then a chance of snow showers after 10pm. Mostly cloudy, with a low around 28. Southwest wind around 10 mph. Chance of precipitation is 30%.
Thursday
A 30 percent chance of snow showers, mainly after 11am. Mostly cloudy, with a high near 36. Southwest wind around 8 mph.
Thursday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 28. West southwest wind 6 to 8 mph. New snow accumulation of less than one inch possible.
Friday
A 40 percent chance of snow showers, mainly before 11am. Mostly cloudy, with a high near 35. West southwest wind around 8 mph.
Friday Night
Mostly cloudy, with a low around 20. Southwest wind around 8 mph.
Saturday
A 20 percent chance of snow showers before 11am. Partly sunny, with a high near 34.
Saturday Night
Partly cloudy, with a low around 16.
Sunday
Mostly sunny, with a high near 37.
Sunday Night
Partly cloudy, with a low around 16.
Monday
Partly sunny, with a high near 36.
Monday Night
A slight chance of snow showers. Mostly cloudy, with a low around 19.
Tuesday
A chance of snow showers. Partly sunny, with a high near 34.
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ABOUT THIS FORECAST

 
Point Forecast:
Lake WY
 44.55°N 110.41°W (Elev. 7910 ft)
11:02 pm MST Dec 9, 2025
11pm MST Dec 9, 2025-6pm MST Dec 16, 2025
 
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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