Tropical Storm Isaias in the Gulf; California Heat Continues

Tropical Storm Isaias is forecast to track toward the central U.S. Gulf Coast while strengthening into a hurricane on Thursday. Residents from Louisiana to the Florida Panhandle should closely monitor the latest updates. Much higher than typical October temperatures will continue across much of California through midweek. Temperatures are forecast to gradually cool beginning Thursday. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

44°F

7°C

Humidity 51%
Wind Speed S 5 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Wind Chill41°F (5°C)
Last update 07 Oct 05:15 AM MDT
Extended Forecast for

9 Miles W Mammoth Hot Springs WY

  • Today

    Today: Sunny, with a high near 59. West southwest wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 59 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 37. West wind 6 to 8 mph.

    Low: 37 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 57. West southwest wind 6 to 13 mph, with gusts as high as 21 mph.

    High: 57 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 37. South southwest wind 9 to 13 mph, with gusts as high as 21 mph.

    Low: 37 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 54. Windy, with a south wind 14 to 19 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph.

    High: 54 °F

    Sunny and
    Windy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38. Breezy, with a south southwest wind 16 to 20 mph, with gusts as high as 38 mph.

    Low: 38 °F

    Partly Cloudy
    and Breezy

  • Saturday

    Saturday: A chance of rain and snow showers, mainly after noon.  Snow level 10000 feet. Partly sunny, with a high near 47. Windy, with a south southwest wind 16 to 25 mph, with gusts as high as 43 mph.  Chance of precipitation is 40%.

    High: 47 °F

    Chance
    Rain/Snow and
    Windy

  • Saturday Night

    Saturday Night: Rain showers likely before 9pm, then rain and snow showers between 9pm and 3am, then snow showers after 3am. Some thunder is also possible.  Snow level 10000 feet lowering to 9400 feet after midnight . Low around 29. Breezy.  Chance of precipitation is 90%.

    Low: 29 °F

    Rain/Snow and
    Breezy

  • Sunday

    Sunday: Snow showers.  High near 31. Chance of precipitation is 80%.

    High: 31 °F

    Snow Showers

Detailed Forecast

Today
Sunny, with a high near 59. West southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 37. West wind 6 to 8 mph.
Thursday
Sunny, with a high near 57. West southwest wind 6 to 13 mph, with gusts as high as 21 mph.
Thursday Night
Mostly clear, with a low around 37. South southwest wind 9 to 13 mph, with gusts as high as 21 mph.
Friday
Sunny, with a high near 54. Windy, with a south wind 14 to 19 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph.
Friday Night
Partly cloudy, with a low around 38. Breezy, with a south southwest wind 16 to 20 mph, with gusts as high as 38 mph.
Saturday
A chance of rain and snow showers, mainly after noon. Snow level 10000 feet. Partly sunny, with a high near 47. Windy, with a south southwest wind 16 to 25 mph, with gusts as high as 43 mph. Chance of precipitation is 40%.
Saturday Night
Rain showers likely before 9pm, then rain and snow showers between 9pm and 3am, then snow showers after 3am. Some thunder is also possible. Snow level 10000 feet lowering to 9400 feet after midnight . Low around 29. Breezy. Chance of precipitation is 90%.
Sunday
Snow showers. High near 31. Chance of precipitation is 80%.
Sunday Night
Snow showers. Low around 25. Chance of precipitation is 80%.
Columbus Day
A chance of snow showers. Mostly cloudy, with a high near 33.
Monday Night
A chance of snow showers. Mostly cloudy, with a low around 26.
Tuesday
A slight chance of snow showers. Mostly sunny, with a high near 39.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles W Mammoth Hot Springs WY
 44.95°N 110.87°W (Elev. 9350 ft)
6:17 am MDT Oct 7, 2026
6am MDT Oct 7, 2026-6pm MDT Oct 13, 2026
 
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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