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

7°F

-14°C

Humidity 74%
Wind Speed NW 10 MPH
Barometer NA
Dewpoint 0°F (-18°C)
Visibility NA
Wind Chill-7°F (-22°C)
Last update 25 Jan 08:15 AM MST
Extended Forecast for

Mammoth Hot Springs WY

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 16. Wind chill values as low as -10. Northwest wind 5 to 10 mph becoming light  in the afternoon.

    High: 16 °F

    Becoming
    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 around 6 mph.

    High: 35 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 13. South wind around 7 mph.

    Low: 13 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 37. South southeast wind around 6 mph.

    High: 37 °F

    Mostly 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 39.

    High: 39 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 16. Wind chill values as low as -10. Northwest wind 5 to 10 mph becoming light in the afternoon.
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 around 6 mph.
Tuesday Night
Partly cloudy, with a low around 13. South wind around 7 mph.
Wednesday
Mostly sunny, with a high near 37. South southeast wind around 6 mph.
Wednesday Night
Partly cloudy, with a low around 16.
Thursday
Mostly sunny, with a high near 39.
Thursday Night
Partly cloudy, with a low around 20.
Friday
Mostly sunny, with a high near 40.
Friday Night
Mostly cloudy, with a low around 25.
Saturday
Partly sunny, with a high near 41.
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth Hot Springs WY
 44.98°N 110.69°W (Elev. 5745 ft)
7:34 am MST Jan 25, 2026
8am MST Jan 25, 2026-6pm MST Jan 31, 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