Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East; Severe Storm Threat in the Gulf States Sunday

A significant winter storm is underway, bringing widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Extremely cold air will follow, prolonging dangerous travel and infrastructure impacts into next week. Severe thunderstorms may produce damaging gusts and tornadoes across the eastern Gulf Coast states Sunday morning and afternoon. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

13°F

-11°C

Humidity 48%
Wind Speed NW 4 MPH
Barometer NA
Dewpoint -3°F (-19°C)
Visibility NA
Wind Chill6°F (-14°C)
Last update 25 Jan 12:15 PM MST
Extended Forecast for

Mammoth WY

  • This Afternoon

    This Afternoon: Sunny, with a high near 16. Wind chill values as low as -5. Northwest wind 5 to 10 mph becoming light.

    High: 16 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 7. Wind chill values as low as -5. South southeast wind 6 to 9 mph.

    Low: 7 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 29. Wind chill values as low as -5. South southwest wind 7 to 9 mph.

    High: 29 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 13. South wind around 7 mph.

    Low: 13 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 35. South wind 3 to 6 mph.

    High: 35 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 15. South wind around 7 mph.

    Low: 15 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 36. South southwest wind around 6 mph.

    High: 36 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 16.

    Low: 16 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 16. Wind chill values as low as -5. Northwest wind 5 to 10 mph becoming light.
Tonight
Mostly clear, with a low around 7. Wind chill values as low as -5. South southeast wind 6 to 9 mph.
Monday
Sunny, with a high near 29. Wind chill values as low as -5. South southwest wind 7 to 9 mph.
Monday Night
Mostly cloudy, with a low around 13. South wind around 7 mph.
Tuesday
Mostly sunny, with a high near 35. South wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a low around 15. South wind around 7 mph.
Wednesday
Partly sunny, with a high near 36. South southwest wind around 6 mph.
Wednesday Night
Partly cloudy, with a low around 16.
Thursday
Mostly sunny, with a high near 38.
Thursday Night
Mostly cloudy, with a low around 19.
Friday
Partly sunny, with a high near 39.
Friday Night
Mostly cloudy, with a low around 25.
Saturday
Partly sunny, with a high near 42.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
11:47 am MST Jan 25, 2026
12pm MST Jan 25, 2026-6pm MST Jan 31, 2026
 
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