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

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

46°F

8°C

Humidity 74%
Wind Speed SW 2 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 04 Oct 03:15 AM MDT
Extended Forecast for

17 Miles SE Big Sky MT

  • Overnight

    Overnight: A 40 percent chance of showers and thunderstorms. Cloudy, with a steady temperature around 43. Calm wind becoming north northeast around 6 mph.

    Low: 43 °F

    Chance
    Showers

  • Saturday

    Saturday: Rain showers before 4pm, then rain and snow showers likely. Some thunder is also possible. Snow level 10200 feet lowering to 8100 feet in the afternoon . High near 41. North northeast wind 6 to 11 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 41 °F

    Showers
    Likely then
    Rain/Snow

  • Saturday Night

    Saturday Night: Rain and snow showers likely, becoming all snow after 10pm. Cloudy, with a low around 32. North northwest wind 6 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Rain/Snow
    Likely then
    Snow Showers
    Likely

  • Sunday

    Sunday: Snow showers. High near 36. North northeast wind 6 to 8 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 36 °F

    Snow Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 24. North northeast wind 5 to 7 mph becoming calm after midnight.

    Low: 24 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Monday

    Monday: Sunny, with a high near 44. Light and variable wind.

    High: 44 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 26. Light and variable wind.

    Low: 26 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 32.

    Low: 32 °F

    Clear

Detailed Forecast

Overnight
A 40 percent chance of showers and thunderstorms. Cloudy, with a steady temperature around 43. Calm wind becoming north northeast around 6 mph.
Saturday
Rain showers before 4pm, then rain and snow showers likely. Some thunder is also possible. Snow level 10200 feet lowering to 8100 feet in the afternoon . High near 41. North northeast wind 6 to 11 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Saturday Night
Rain and snow showers likely, becoming all snow after 10pm. Cloudy, with a low around 32. North northwest wind 6 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Sunday
Snow showers. High near 36. North northeast wind 6 to 8 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Sunday Night
A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 24. North northeast wind 5 to 7 mph becoming calm after midnight.
Monday
Sunny, with a high near 44. Light and variable wind.
Monday Night
Clear, with a low around 26. Light and variable wind.
Tuesday
Sunny, with a high near 51.
Tuesday Night
Clear, with a low around 32.
Wednesday
Sunny, with a high near 53.
Wednesday Night
Mostly clear, with a low around 34.
Thursday
Sunny, with a high near 56.
Thursday Night
Mostly clear, with a low around 36.
Friday
Sunny, with a high near 58.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
17 Miles SE Big Sky MT
 45.08°N 111.1°W (Elev. 7615 ft)
Last Update:
3:32 am MDT Oct 4, 2025
Forecast Valid:
3am MDT Oct 4, 2025-6pm MDT Oct 10, 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