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 79%
Wind Speed NNE 6 MPH
Barometer NA
Dewpoint 3°F (-16°C)
Visibility NA
Wind Chill-1°F (-18°C)
Last update 23 Jan 01:15 AM MST
Extended Forecast for

17 Miles W Gardiner MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 0. Wind chill values as low as -15. North wind around 7 mph.

    Low: 0 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny and cold, with a temperature falling to around -3 by 5pm. Wind chill values as low as -20. North wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 2 °F

    Cold

  • Friday Night

    Friday Night: Mostly clear, with a low around -9. Wind chill values as low as -25. North wind 7 to 10 mph becoming west after midnight.

    Low: -9 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny and cold, with a high near 6. Wind chill values as low as -25. Southwest wind 7 to 11 mph becoming northwest in the afternoon.

    High: 6 °F

    Cold

  • Saturday Night

    Saturday Night: A 20 percent chance of snow showers after 11pm.  Mostly cloudy, with a low around -2. West wind around 11 mph.

    Low: -2 °F

    Slight Chance
    Snow Showers

  • Sunday

    Sunday: Sunny, with a high near 11. West wind around 11 mph.

    High: 11 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 2. Breezy, with a south southwest wind 14 to 17 mph, with gusts as high as 26 mph.

    Low: 2 °F

    Mostly Clear
    and Breezy

  • Monday

    Monday: Mostly sunny, with a high near 17. Breezy.

    High: 17 °F

    Mostly Sunny
    and Breezy
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 9. Breezy.

    Low: 9 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 0. Wind chill values as low as -15. North wind around 7 mph.
Friday
Partly sunny and cold, with a temperature falling to around -3 by 5pm. Wind chill values as low as -20. North wind 8 to 13 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around -9. Wind chill values as low as -25. North wind 7 to 10 mph becoming west after midnight.
Saturday
Partly sunny and cold, with a high near 6. Wind chill values as low as -25. Southwest wind 7 to 11 mph becoming northwest in the afternoon.
Saturday Night
A 20 percent chance of snow showers after 11pm. Mostly cloudy, with a low around -2. West wind around 11 mph.
Sunday
Sunny, with a high near 11. West wind around 11 mph.
Sunday Night
Mostly clear, with a low around 2. Breezy, with a south southwest wind 14 to 17 mph, with gusts as high as 26 mph.
Monday
Mostly sunny, with a high near 17. Breezy.
Monday Night
Mostly cloudy, with a low around 9. Breezy.
Tuesday
Partly sunny, with a high near 22.
Tuesday Night
Partly cloudy, with a low around 9.
Wednesday
Mostly sunny, with a high near 24.
Wednesday Night
Mostly cloudy, with a low around 12.
Thursday
Partly sunny, with a high near 23.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles W Gardiner MT
 45.08°N 111.07°W (Elev. 9426 ft)
12:32 am MST Jan 23, 2026
2am 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