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Late January Extreme Cold; Watching East Coast Storm Threat This Weekend

The next blast of Arctic air surges south down the Plains, across the Great Lakes and through the Southeast and East Friday through Saturday. This could be longest duration of cold in several decades. Forecast models are being closely monitored for potential of another significant winter storm to impact the eastern United States this coming weekend. Confidence in coastal impacts has increased. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

32°F

0°C

Humidity 39%
Wind Speed ENE 0 MPH
Barometer NA
Dewpoint 10°F (-12°C)
Visibility NA
Last update 28 Jan 02:15 PM MST
Extended Forecast for

5 Miles SSW Mammoth Hot Springs WY

  • This Afternoon

    This Afternoon: Scattered snow showers, mainly after 4pm. Mostly cloudy, with a high near 28. Southwest wind around 7 mph. Chance of precipitation is 30%.

    High: 28 °F

    Scattered
    Snow Showers

  • Tonight

    Tonight: Isolated snow showers before 7pm. Mostly cloudy, with a low around 10. Southwest wind around 7 mph. Chance of precipitation is 10%.

    Low: 10 °F

    Isolated Snow
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 26. Wind chill values as low as zero. South southwest wind 6 to 8 mph.

    High: 26 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 15. South southwest wind around 6 mph.

    Low: 15 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 30. Southwest wind 6 to 8 mph.

    High: 30 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 21. South southwest wind around 8 mph.

    Low: 21 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 35. Southwest wind around 8 mph.

    High: 35 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Scattered snow showers, mainly after 4pm. Mostly cloudy, with a high near 28. Southwest wind around 7 mph. Chance of precipitation is 30%.
Tonight
Isolated snow showers before 7pm. Mostly cloudy, with a low around 10. Southwest wind around 7 mph. Chance of precipitation is 10%.
Thursday
Mostly sunny, with a high near 26. Wind chill values as low as zero. South southwest wind 6 to 8 mph.
Thursday Night
Mostly cloudy, with a low around 15. South southwest wind around 6 mph.
Friday
Partly sunny, with a high near 30. Southwest wind 6 to 8 mph.
Friday Night
Mostly cloudy, with a low around 21. South southwest wind around 8 mph.
Saturday
Partly sunny, with a high near 35. Southwest wind around 8 mph.
Saturday Night
Mostly cloudy, with a low around 16.
Sunday
Partly sunny, with a high near 38.
Sunday Night
Mostly cloudy, with a low around 20.
Monday
A slight chance of snow showers. Partly sunny, with a high near 35.
Monday Night
A slight chance of snow showers. Mostly cloudy, with a low around 16.
Tuesday
A slight chance of snow showers. Mostly sunny, with a high near 32.
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Forecast Area
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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)
Last Update:
2:02 pm MST Jan 28, 2026
Forecast Valid:
2pm MST Jan 28, 2026-6pm MST Feb 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation