National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms for Mid-Atlantic and Northeast; Typhoon Approaching Guam

A cold front will sweep eastward today accompanied by strong to severe thunderstorms for the mid-Atlantic and Northeast today. In the wake of this cold front, autumn like temperatures and gusty winds from the Plains, Mississippi Valley, Great Lakes to most of the eastern seaboard. Fire weather conditions for lower Mississippi Valley into portions of California. For Guam, a typhoon is approaching. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

41°F

5°C

Humidity 58%
Wind Speed S 2 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Last update 17 Oct 02:15 AM MDT
Extended Forecast for

Mammoth WY

  • Overnight

    Overnight: Partly cloudy, with a low around 33. Southeast wind around 10 mph.

    Low: 33 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 59. Southeast wind 9 to 11 mph, with gusts as high as 25 mph.

    High: 59 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 33. South wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 33 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 60. South southeast wind 5 to 7 mph becoming light and variable.

    High: 60 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 32. South southeast wind 6 to 9 mph.

    Low: 32 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 60. South southwest wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 60 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35. South wind 5 to 8 mph.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 38.

    Low: 38 °F

    Slight Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 33. Southeast wind around 10 mph.
Saturday
Mostly sunny, with a high near 59. Southeast wind 9 to 11 mph, with gusts as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 33. South wind 8 to 10 mph, with gusts as high as 21 mph.
Sunday
Mostly sunny, with a high near 60. South southeast wind 5 to 7 mph becoming light and variable.
Sunday Night
Mostly clear, with a low around 32. South southeast wind 6 to 9 mph.
Monday
Sunny, with a high near 60. South southwest wind 6 to 9 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 35. South wind 5 to 8 mph.
Tuesday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 58.
Tuesday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 38.
Wednesday
Mostly sunny, with a high near 59.
Wednesday Night
Partly cloudy, with a low around 37.
Thursday
A chance of showers. Mostly sunny, with a high near 58.
Thursday Night
Showers. Mostly cloudy, with a low around 37.
Friday
Rain and snow showers. Mostly cloudy, with a high near 44.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
Last Update:
12:31 am MDT Oct 17, 2026
Forecast Valid:
2am MDT Oct 17, 2026-6pm MDT Oct 23, 2026
 
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Additional Resources

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Chance of Precipitation