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

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NP (YLAW4)

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

NA

60°F

16°C

Humidity 64%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 16 Jul 09:15 PM MDT
Extended Forecast for

Mammoth WY

  • Tonight

    Tonight: Mostly clear, with a low around 49. West northwest wind around 7 mph becoming southeast after midnight.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Widespread haze before 4pm. Areas of smoke between 1pm and 3pm. Sunny, with a high near 83. Southeast wind 7 to 13 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 83 °F

    Haze

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. West wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86. Calm wind becoming west southwest 5 to 9 mph in the morning.

    High: 86 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 53. West southwest wind around 7 mph becoming south southeast in the evening.

    Low: 53 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: A 10 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 86. South wind 6 to 13 mph becoming west southwest in the afternoon. Winds could gust as high as 25 mph.

    High: 86 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 51. South southwest wind 7 to 10 mph, with gusts as high as 21 mph.

    Low: 51 °F

    Partly Cloudy

  • Sunday

    Sunday: A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 85. Breezy.

    High: 85 °F

    Sunny then
    Slight Chance
    T-storms and
    Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 49. West northwest wind around 7 mph becoming southeast after midnight.
Thursday
Widespread haze before 4pm. Areas of smoke between 1pm and 3pm. Sunny, with a high near 83. Southeast wind 7 to 13 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 51. West wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Friday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86. Calm wind becoming west southwest 5 to 9 mph in the morning.
Friday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 53. West southwest wind around 7 mph becoming south southeast in the evening.
Saturday
A 10 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 86. South wind 6 to 13 mph becoming west southwest in the afternoon. Winds could gust as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 51. South southwest wind 7 to 10 mph, with gusts as high as 21 mph.
Sunday
A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 85. Breezy.
Sunday Night
Partly cloudy, with a low around 52.
Monday
A 10 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 53.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 81. Breezy.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 51.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
Last Update:
9:28 pm MDT Jul 16, 2025
Forecast Valid:
10pm MDT Jul 16, 2025-6pm MDT Jul 23, 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