Arctic Front Brings Winter Weather and Colder Temperatures to the Eastern U.S.

A series of cold fronts will bring heavy lake effect snow to the northern Great Lakes. The fronts will merge over the Ohio Valley and bring colder temperatures east of the Mississippi River later today into the end of the week. Additionally, wintry weather will develop over the Ohio Valley, Appalachians, and Northeast as rain switches over to snow tonight into Thursday morning. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

35°F

2°C

Humidity 57%
Wind Speed SSE 3 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Last update 14 Jan 11:15 AM MST
Extended Forecast for

Mammoth WY

  • This Afternoon

    This Afternoon: Sunny, with a high near 40. South wind 3 to 6 mph.

    High: 40 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 18. South wind around 7 mph.

    Low: 18 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 37. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 37 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 18. Northwest wind around 10 mph.

    Low: 18 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 34. Northwest wind 3 to 8 mph.

    High: 34 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 17. West northwest wind 3 to 5 mph.

    Low: 17 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 41. Light west wind.

    High: 41 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 17.

    Low: 17 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 40. South wind 3 to 6 mph.
Tonight
Mostly clear, with a low around 18. South wind around 7 mph.
Thursday
Sunny, with a high near 37. Calm wind becoming west 5 to 8 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 18. Northwest wind around 10 mph.
Friday
Mostly sunny, with a high near 34. Northwest wind 3 to 8 mph.
Friday Night
Mostly clear, with a low around 17. West northwest wind 3 to 5 mph.
Saturday
Sunny, with a high near 41. Light west wind.
Saturday Night
Clear, with a low around 17.
Sunday
Sunny, with a high near 39.
Sunday Night
Mostly clear, with a low around 14.
M.L.King Day
Sunny, with a high near 39.
Monday Night
Mostly clear, with a low around 17.
Tuesday
Sunny, with a high near 39.
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
12:01 pm MST Jan 14, 2026
12pm MST Jan 14, 2026-6pm MST Jan 20, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database