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

MAMMOTH AT YELLOWSTONE NP (YLAW4)

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

NA

88°F

31°C

Humidity 13%
Wind Speed NNE 7 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Heat Index84°F (29°C)
Last update 13 Jul 05:15 PM MDT
Extended Forecast for

Mammoth Hot Springs WY

  • Tonight

    Tonight: Mostly clear, with a low around 55. Northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 55 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 90. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.

    High: 90 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 53. West wind 5 to 8 mph becoming light and variable after midnight.

    Low: 53 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers, then showers and possibly a thunderstorm after noon. High near 80. Light and variable wind becoming northwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 80%.

    High: 80 °F

    Slight Chance
    Showers then
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 49. North wind 6 to 8 mph. Chance of precipitation is 70%.

    Low: 49 °F

    Showers
    Likely then
    Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 74. North northwest wind 5 to 8 mph.

    High: 74 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. North northwest wind around 7 mph becoming east northeast after midnight.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 83.

    High: 83 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 55. Northwest wind 5 to 8 mph becoming calm after midnight.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 90. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.
Monday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 53. West wind 5 to 8 mph becoming light and variable after midnight.
Tuesday
A slight chance of showers, then showers and possibly a thunderstorm after noon. High near 80. Light and variable wind becoming northwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Tuesday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 49. North wind 6 to 8 mph. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 74. North northwest wind 5 to 8 mph.
Wednesday Night
Mostly clear, with a low around 47. North northwest wind around 7 mph becoming east northeast after midnight.
Thursday
A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 49.
Friday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 52.
Saturday
A slight chance of showers and thunderstorms. Sunny, with a high near 86.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
A slight chance of showers and thunderstorms. Sunny, with a high near 86.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mammoth Hot Springs WY
 44.98°N 110.69°W (Elev. 5745 ft)
Last Update:
5:28 pm MDT Jul 13, 2025
Forecast Valid:
5pm MDT Jul 13, 2025-6pm MDT Jul 20, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation