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

33°F

1°C

Humidity 67%
Wind Speed SSW 13 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Wind Chill24°F (-4°C)
Last update 31 Jan 12:15 AM MST
Extended Forecast for

Mammoth Hot Springs WY

  • Overnight

    Overnight: Mostly cloudy, with a low around 25. South wind around 8 mph.

    Low: 25 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 39. South southwest wind 5 to 7 mph.

    High: 39 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 26. South southwest wind around 6 mph.

    Low: 26 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 45. South wind around 7 mph.

    High: 45 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 24. South southwest wind around 7 mph.

    Low: 24 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 42. South southwest wind around 6 mph.

    High: 42 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 24. Southwest wind around 6 mph.

    Low: 24 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 25. South wind around 8 mph.
Saturday
Mostly sunny, with a high near 39. South southwest wind 5 to 7 mph.
Saturday Night
Mostly cloudy, with a low around 26. South southwest wind around 6 mph.
Sunday
Partly sunny, with a high near 45. South wind around 7 mph.
Sunday Night
Mostly cloudy, with a low around 24. South southwest wind around 7 mph.
Monday
Mostly sunny, with a high near 42. South southwest wind around 6 mph.
Monday Night
Mostly cloudy, with a low around 24. Southwest wind around 6 mph.
Tuesday
Partly sunny, with a high near 43.
Tuesday Night
Partly cloudy, with a low around 23.
Wednesday
Mostly sunny, with a high near 46.
Wednesday Night
Partly cloudy, with a low around 22.
Thursday
Sunny, with a high near 50.
Thursday Night
Mostly clear, with a low around 22.
Friday
Sunny, with a high near 51.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth Hot Springs WY
 44.98°N 110.69°W (Elev. 5745 ft)
11:47 pm MST Jan 30, 2026
1am MST Jan 31, 2026-6pm MST Feb 6, 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