Major Winter Storm Ongoing in the Upper Midwest; Severe Weather Tonight from the Mid-South to the Ohio Valley

A major winter storm will continue to bring blizzard conditions, heavy snowfall, icing, and strong winds through Monday across the Upper Midwest and Upper Great Lakes. A line of storms will be capable of producing widespread damaging winds, tornadoes, and some large hail from the Mid-South to the Ohio Valley and the Southeast through tonight, moving into the Mid-Atlantic Monday. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

23°F

-5°C

Humidity 60%
Wind Speed SW 6 MPH
Barometer NA
Dewpoint 11°F (-12°C)
Visibility NA
Wind Chill16°F (-9°C)
Last update 15 Mar 07:15 PM MDT
Extended Forecast for

Mammoth WY

  • Tonight

    Tonight: Scattered snow showers, mainly after 3am.  Increasing clouds, with a low around 23. South wind around 6 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 23 °F

    Mostly Cloudy
    then
    Scattered
    Snow Showers

  • Monday

    Monday: Scattered rain and snow showers before 3pm, then rain showers likely.  Mostly cloudy, with a high near 46. South southwest wind 6 to 9 mph, with gusts as high as 23 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 46 °F

    Scattered
    Snow Showers
    then
    Rain/Snow
    Likely

  • Monday Night

    Monday Night: Scattered showers, mainly before 11pm.  Mostly cloudy, with a low around 39. South southwest wind around 9 mph, with gusts as high as 22 mph.  Chance of precipitation is 50%.

    Low: 39 °F

    Scattered
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 57. South southwest wind around 9 mph, with gusts as high as 24 mph.

    High: 57 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39. South southwest wind 8 to 10 mph, with gusts as high as 23 mph.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63. South southwest wind 8 to 11 mph, with gusts as high as 26 mph.

    High: 63 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 39. South southwest wind 7 to 9 mph, with gusts as high as 22 mph.

    Low: 39 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
Scattered snow showers, mainly after 3am. Increasing clouds, with a low around 23. South wind around 6 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Monday
Scattered rain and snow showers before 3pm, then rain showers likely. Mostly cloudy, with a high near 46. South southwest wind 6 to 9 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday Night
Scattered showers, mainly before 11pm. Mostly cloudy, with a low around 39. South southwest wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Tuesday
Partly sunny, with a high near 57. South southwest wind around 9 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly cloudy, with a low around 39. South southwest wind 8 to 10 mph, with gusts as high as 23 mph.
Wednesday
Mostly sunny, with a high near 63. South southwest wind 8 to 11 mph, with gusts as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 39. South southwest wind 7 to 9 mph, with gusts as high as 22 mph.
Thursday
Mostly sunny, with a high near 65.
Thursday Night
Partly cloudy, with a low around 41.
Friday
Mostly sunny, with a high near 67.
Friday Night
Mostly clear, with a low around 42.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
Mostly cloudy, with a low around 38.
Sunday
Partly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
7:47 pm MDT Mar 15, 2026
8pm MDT Mar 15, 2026-6pm MDT Mar 22, 2026
 
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Additional Resources

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Hourly Weather Forecast

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