Tropical Storm Edouard Impacting the Northwestern Gulf Coast; Hazardous Heat expands in the East

Tropical Storm Edouard will impact the northwestern Gulf Coast through Wednesday with gusty winds, storm surge, and heavy rainfall. Flash and river flooding will be possible, especially in southeastern Texas. Hazardous heat will expand across the central and eastern U.S. by mid-week, and daily chances for severe thunderstorms are expected from the eastern Great Lakes to the Mid-Atlantic this 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 64%
Wind Speed S 7 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 02 Sep 12:15 AM MDT
Extended Forecast for

5 Miles W Mammoth Hot Springs WY

  • Overnight

    Overnight: A 30 percent chance of showers, mainly before 2am.  Mostly cloudy, with a low around 46. South wind around 9 mph.

    Low: 46 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60. Breezy, with a south southwest wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 44 mph.

    High: 60 °F

    Mostly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43. Breezy, with a south southwest wind 13 to 21 mph, with gusts as high as 43 mph.

    Low: 43 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Thursday

    Thursday: A slight chance of showers between 8am and 9am.  Snow level 9100 feet rising to 10600 feet in the afternoon. Sunny, with a high near 59. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 39 mph.  Chance of precipitation is 20%.

    High: 59 °F

    Breezy.
    Slight Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44. Breezy, with a south southeast wind 9 to 15 mph, with gusts as high as 33 mph.

    Low: 44 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

  • Friday

    Friday: Sunny, with a high near 61. Breezy, with a south wind 11 to 17 mph, with gusts as high as 37 mph.

    High: 61 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: A 20 percent chance of showers after midnight.  Mostly clear, with a low around 44. South wind 7 to 14 mph, with gusts as high as 30 mph.

    Low: 44 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 62. Breezy.

    High: 62 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

Detailed Forecast

Overnight
A 30 percent chance of showers, mainly before 2am. Mostly cloudy, with a low around 46. South wind around 9 mph.
Wednesday
Mostly sunny, with a high near 60. Breezy, with a south southwest wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 44 mph.
Wednesday Night
Partly cloudy, with a low around 43. Breezy, with a south southwest wind 13 to 21 mph, with gusts as high as 43 mph.
Thursday
A slight chance of showers between 8am and 9am. Snow level 9100 feet rising to 10600 feet in the afternoon. Sunny, with a high near 59. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 44. Breezy, with a south southeast wind 9 to 15 mph, with gusts as high as 33 mph.
Friday
Sunny, with a high near 61. Breezy, with a south wind 11 to 17 mph, with gusts as high as 37 mph.
Friday Night
A 20 percent chance of showers after midnight. Mostly clear, with a low around 44. South wind 7 to 14 mph, with gusts as high as 30 mph.
Saturday
Sunny, with a high near 62. Breezy.
Saturday Night
Mostly clear, with a low around 45.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 63.
Sunday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 47.
Labor Day
Showers and possibly a thunderstorm. Partly sunny, with a high near 56.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 42.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Mammoth Hot Springs WY
 44.97°N 110.81°W (Elev. 8209 ft)
12:31 am MDT Sep 2, 2026
1am MDT Sep 2, 2026-6pm MDT Sep 8, 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