Unsettled Weather in the West; Marine and Coastal Impacts Along the East Coast

A series of Pacific fronts will bring periodic waves of showers and thunderstorms to parts of the Great Basin and Pacific Northwest the next few days. Swells, high surf, dangerous rip currents and areas of coastal flooding continue along much of the East Coast from both Humberto and Imelda. Unseasonably hot temperatures continue for much of the Plains and Midwest through the remainder of the week. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

58°F

14°C

Humidity 37%
Wind Speed SSW 10 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 01 Oct 07:15 PM MDT
Extended Forecast for

Mammoth WY

  • Tonight

    Tonight: Partly cloudy, with a low around 45. South southeast wind 7 to 10 mph.

    Low: 45 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers, mainly between noon and 3pm.  Mostly sunny, with a high near 68. South southwest wind 6 to 14 mph, with gusts as high as 21 mph.

    High: 68 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 46. South southwest wind 6 to 9 mph becoming southeast after midnight. Winds could gust as high as 20 mph.

    Low: 46 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm.  Partly sunny, with a high near 70. Southeast wind 6 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 21 mph.  Chance of precipitation is 50%.

    High: 70 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm.  Low around 43. South southwest wind 6 to 8 mph becoming northwest after midnight.  Chance of precipitation is 80%.

    Low: 43 °F

    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm.  High near 51. North northwest wind 6 to 8 mph.  Chance of precipitation is 90%.

    High: 51 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 34. Northwest wind around 8 mph.  Chance of precipitation is 70%.

    Low: 34 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after noon.  Snow level 6900 feet. Mostly cloudy, with a high near 49. Chance of precipitation is 60%.

    High: 49 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers, mainly before midnight.  Mostly cloudy, with a low around 29.

    Low: 29 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 45. South southeast wind 7 to 10 mph.
Thursday
A 30 percent chance of showers, mainly between noon and 3pm. Mostly sunny, with a high near 68. South southwest wind 6 to 14 mph, with gusts as high as 21 mph.
Thursday Night
Mostly cloudy, with a low around 46. South southwest wind 6 to 9 mph becoming southeast after midnight. Winds could gust as high as 20 mph.
Friday
A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 70. Southeast wind 6 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 50%.
Friday Night
Showers and possibly a thunderstorm. Low around 43. South southwest wind 6 to 8 mph becoming northwest after midnight. Chance of precipitation is 80%.
Saturday
Showers and possibly a thunderstorm. High near 51. North northwest wind 6 to 8 mph. Chance of precipitation is 90%.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 34. Northwest wind around 8 mph. Chance of precipitation is 70%.
Sunday
Showers likely, with thunderstorms also possible after noon. Snow level 6900 feet. Mostly cloudy, with a high near 49. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 29.
Monday
Mostly sunny, with a high near 56.
Monday Night
Mostly clear, with a low around 30.
Tuesday
Sunny, with a high near 61.
Tuesday Night
Mostly clear, with a low around 34.
Wednesday
Sunny, with a high near 61.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
7:04 pm MDT Oct 1, 2025
7pm MDT Oct 1, 2025-6pm MDT Oct 8, 2025
 
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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