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

Tracking Two Storms Impacting the Northern U.S. Through Thanksgiving and into This Weekend

Heavy lake effect snow, gusty winds, and localized blizzard conditions will persist through Thanksgiving near and downwind of the Great Lakes. Rain and mountain snow are forecast for the Pacific Northwest. Confidence is increasing for another winter storm to develop over the northern and central Rockies Friday and track across the central Plains through the Midwest and Great Lakes this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

Lat: 44.977222°NLon: 110.695278°WElev: 6138.0ft.

NA

40°F

4°C

Humidity 58%
Wind Speed SSE 5 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Wind Chill36°F (2°C)
Last update 27 Nov 10:15 PM MST
Extended Forecast for

Norris WY

  • Tonight

    Tonight: Mostly cloudy, with a low around 19. South southeast wind 5 to 7 mph.

    Low: 19 °F

    Mostly Cloudy

  • Friday

    Friday: Snow showers, mainly after 3pm. High near 33. South wind 5 to 11 mph becoming west southwest in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 33 °F

    Scattered
    Snow Showers
    then Snow
    Showers

  • Friday Night

    Friday Night: Snow showers, mainly before 10pm. Low around -2. Breezy, with a west wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: -2 °F

    Snow Showers
    and Breezy
    then Partly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 21. Wind chill values as low as zero. Calm wind becoming west southwest around 5 mph.

    High: 21 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 4. Calm wind.

    Low: 4 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 25. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 25 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 2. Calm wind.

    Low: 2 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 24.

    High: 24 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of snow showers after 11pm. Mostly cloudy, with a low around 12.

    Low: 12 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 19. South southeast wind 5 to 7 mph.
Friday
Snow showers, mainly after 3pm. High near 33. South wind 5 to 11 mph becoming west southwest in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Friday Night
Snow showers, mainly before 10pm. Low around -2. Breezy, with a west wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Saturday
Mostly sunny, with a high near 21. Wind chill values as low as zero. Calm wind becoming west southwest around 5 mph.
Saturday Night
Mostly cloudy, with a low around 4. Calm wind.
Sunday
Mostly sunny, with a high near 25. Calm wind becoming north northeast around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 2. Calm wind.
Monday
Partly sunny, with a high near 24.
Monday Night
A 30 percent chance of snow showers after 11pm. Mostly cloudy, with a low around 12.
Tuesday
Snow showers likely. Cloudy, with a high near 26. Chance of precipitation is 70%.
Tuesday Night
A chance of snow showers. Mostly cloudy, with a low around 13.
Wednesday
A chance of snow showers. Partly sunny, with a high near 27.
Wednesday Night
A slight chance of snow showers. Partly cloudy, with a low around 7.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 24.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Norris WY
 44.75°N 110.68°W (Elev. 7552 ft)
Last Update:
9:46 pm MST Nov 27, 2025
Forecast Valid:
10pm MST Nov 27, 2025-6pm MST Dec 4, 2025
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation