Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

9°F

-13°C

Humidity 63%
Wind Speed NE 6 MPH
Barometer NA
Dewpoint -1°F (-18°C)
Visibility NA
Wind Chill-1°F (-18°C)
Last update 23 Jan 04:15 PM MST
Extended Forecast for

5 Miles ESE Mount Holmes WY

  • This Afternoon

    This Afternoon: Sunny, with a steady temperature around 11. Wind chill values as low as zero. North wind around 9 mph.

    High: 11 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around -14. North northeast wind around 6 mph becoming calm  in the evening.

    Low: -14 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 12. Wind chill values as low as -25. Calm wind becoming northwest 5 to 8 mph in the morning.

    High: 12 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of snow showers, mainly after 11pm.  Mostly cloudy, with a low around -3. Wind chill values as low as -10. West southwest wind around 6 mph.

    Low: -3 °F

    Chance Snow
    Showers

  • Sunday

    Sunday: Sunny, with a high near 14. Northwest wind 6 to 8 mph.

    High: 14 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around -4. South southwest wind 6 to 8 mph.

    Low: -4 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 21. Southwest wind 8 to 10 mph.

    High: 21 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 2.

    Low: 2 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 25.

    High: 25 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a steady temperature around 11. Wind chill values as low as zero. North wind around 9 mph.
Tonight
Mostly clear, with a low around -14. North northeast wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 12. Wind chill values as low as -25. Calm wind becoming northwest 5 to 8 mph in the morning.
Saturday Night
A 30 percent chance of snow showers, mainly after 11pm. Mostly cloudy, with a low around -3. Wind chill values as low as -10. West southwest wind around 6 mph.
Sunday
Sunny, with a high near 14. Northwest wind 6 to 8 mph.
Sunday Night
Mostly clear, with a low around -4. South southwest wind 6 to 8 mph.
Monday
Mostly sunny, with a high near 21. Southwest wind 8 to 10 mph.
Monday Night
Partly cloudy, with a low around 2.
Tuesday
Mostly sunny, with a high near 25.
Tuesday Night
Mostly clear, with a low around 2.
Wednesday
Mostly sunny, with a high near 28.
Wednesday Night
Partly cloudy, with a low around 9.
Thursday
Mostly sunny, with a high near 30.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Mount Holmes WY
 44.81°N 110.75°W (Elev. 7641 ft)
4:17 pm MST Jan 23, 2026
4pm MST Jan 23, 2026-6pm MST Jan 29, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database