High-Impact and Far-Reaching Winter Storm Continues; Cold Expands and Persists

A major winter storm will shift its impacts into the Northeast U.S. with heavy snow through tonight while over the Mid-Atlantic, sleet and freezing rain will diminish. Extremely cold air behind the storm will prolong dangerous travel and infrastructure impacts. Sub-zero low temperatures are expected nearly every morning from the Northern Plains through the Ohio Valley and into the Northeast. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

7°F

-14°C

Humidity 70%
Wind Speed SSW 1 MPH
Barometer NA
Dewpoint -1°F (-18°C)
Visibility NA
Last update 26 Jan 04:15 AM MST
Extended Forecast for

Mammoth WY

  • Today

    Today: Sunny, with a high near 25. Wind chill values as low as -10. South wind 7 to 9 mph.

    High: 25 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 14. South wind 5 to 7 mph.

    Low: 14 °F

    Partly Cloudy

  • Tuesday

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

    High: 35 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 16. South wind around 7 mph.

    Low: 16 °F

    Partly Cloudy

  • Wednesday

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

    High: 36 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 16. Southwest wind around 6 mph.

    Low: 16 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 37. South southwest wind around 6 mph.

    High: 37 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 25. Wind chill values as low as -10. South wind 7 to 9 mph.
Tonight
Partly cloudy, with a low around 14. South wind 5 to 7 mph.
Tuesday
Sunny, with a high near 35. South wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a low around 16. South wind around 7 mph.
Wednesday
Partly sunny, with a high near 36. South wind around 6 mph.
Wednesday Night
Partly cloudy, with a low around 16. Southwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 37. South southwest wind around 6 mph.
Thursday Night
Mostly cloudy, with a low around 21.
Friday
Partly sunny, with a high near 39.
Friday Night
Mostly cloudy, with a low around 27.
Saturday
Partly sunny, with a high near 42.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
Partly sunny, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
2:32 am MST Jan 26, 2026
4am MST Jan 26, 2026-6pm MST Feb 1, 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