Another Arctic Blast in the East; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the upper Ohio Valley, Mid-Atlantic, Gulf Coast and Southeast U.S. this weekend. A rapidly deepening storm will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia into Sunday. Storm-force winds and coastal flooding will be possible along the East Coast. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

32°F

0°C

Humidity 63%
Wind Speed S 4 MPH
Barometer NA
Dewpoint 20°F (-7°C)
Visibility NA
Wind Chill28°F (-2°C)
Last update 01 Feb 02:15 AM MST
Extended Forecast for

5 Miles SSW Mammoth Hot Springs WY

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 29. South wind around 9 mph.

    Low: 29 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 36. Breezy, with a south wind 10 to 18 mph, with gusts as high as 25 mph.

    High: 36 °F

    Mostly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 18. Breezy, with a south southwest wind 12 to 17 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 24 mph.

    Low: 18 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Monday

    Monday: Sunny, with a high near 33. West southwest wind around 7 mph.

    High: 33 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 18. Southwest wind around 6 mph.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 35. West wind around 7 mph.

    High: 35 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 16. South southwest wind 3 to 5 mph.

    Low: 16 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 16 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 29. South wind around 9 mph.
Sunday
Mostly sunny, with a high near 36. Breezy, with a south wind 10 to 18 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 18. Breezy, with a south southwest wind 12 to 17 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 24 mph.
Monday
Sunny, with a high near 33. West southwest wind around 7 mph.
Monday Night
Partly cloudy, with a low around 18. Southwest wind around 6 mph.
Tuesday
Mostly sunny, with a high near 35. West wind around 7 mph.
Tuesday Night
Partly cloudy, with a low around 16. South southwest wind 3 to 5 mph.
Wednesday
Mostly sunny, with a high near 37.
Wednesday Night
Partly cloudy, with a low around 16.
Thursday
Sunny, with a high near 42.
Thursday Night
Clear, with a low around 18.
Friday
Sunny, with a high near 42.
Friday Night
Mostly clear, with a low around 18.
Saturday
Mostly sunny, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Mammoth Hot Springs WY
 44.89°N 110.74°W (Elev. 7402 ft)
2:16 am MST Feb 1, 2026
3am MST Feb 1, 2026-6pm MST Feb 7, 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