Heavy Great Lakes Snow through Friday; Watching Potential for Major Winter Storm Late Week into this Weekend

Heavy lake effect snow will continue in the Great Lakes into Wednesday before another storm brings a widespread general snow followed by another round of heavy lake effect snow. A wide-ranging winter storm will produce great swaths of heavy snow, sleet, and treacherous freezing rain from the southern Rockies/Plains and Mid-South starting Friday and shifting toward the East Coast through Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

26°F

-3°C

Humidity 56%
Wind Speed NNW 5 MPH
Barometer NA
Dewpoint 13°F (-11°C)
Visibility NA
Wind Chill20°F (-7°C)
Last update 20 Jan 04:15 PM MST
Extended Forecast for

17 Miles W Gardiner MT

  • Tonight

    Tonight: Mostly clear, with a low around 5. Wind chill values as low as -10. West southwest wind 6 to 11 mph becoming south after midnight.

    Low: 5 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 17. Wind chill values as low as -10. South wind 5 to 11 mph.

    High: 17 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 5. Wind chill values as low as -5. South southwest wind 8 to 10 mph.

    Low: 5 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 18. Wind chill values as low as -5. West wind 6 to 9 mph becoming north northwest in the afternoon.

    High: 18 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 0. Northwest wind around 8 mph.

    Low: 0 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near 10. North northwest wind around 10 mph.

    High: 10 °F

    Cold

  • Friday Night

    Friday Night: Mostly clear, with a low around -5. West northwest wind around 10 mph.

    Low: -5 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 11.

    High: 11 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 1.

    Low: 1 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 5. Wind chill values as low as -10. West southwest wind 6 to 11 mph becoming south after midnight.
Wednesday
Mostly sunny, with a high near 17. Wind chill values as low as -10. South wind 5 to 11 mph.
Wednesday Night
Mostly cloudy, with a low around 5. Wind chill values as low as -5. South southwest wind 8 to 10 mph.
Thursday
Mostly sunny, with a high near 18. Wind chill values as low as -5. West wind 6 to 9 mph becoming north northwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 0. Northwest wind around 8 mph.
Friday
Mostly sunny and cold, with a high near 10. North northwest wind around 10 mph.
Friday Night
Mostly clear, with a low around -5. West northwest wind around 10 mph.
Saturday
Mostly sunny, with a high near 11.
Saturday Night
Partly cloudy, with a low around 1.
Sunday
Mostly sunny, with a high near 16.
Sunday Night
Partly cloudy, with a low around 6. Breezy.
Monday
Mostly sunny, with a high near 19. Breezy.
Monday Night
Mostly cloudy, with a low around 11.
Tuesday
Mostly sunny, with a high near 24.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles W Gardiner MT
 45.08°N 111.07°W (Elev. 9426 ft)
3:32 pm MST Jan 20, 2026
5pm MST Jan 20, 2026-6pm MST Jan 27, 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