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

86°F

30°C

Humidity 11%
Wind Speed SSE 3 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Heat Index83°F (28°C)
Last update 12 Jul 05:15 PM MDT
Extended Forecast for

Norris WY

  • Tonight

    Tonight: Clear, with a low around 42. West northwest wind 5 to 9 mph becoming calm in the evening.

    Low: 42 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 79. Calm wind becoming west 5 to 9 mph in the afternoon.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 46. West wind around 6 mph becoming calm in the evening.

    Low: 46 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 80. Calm wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 80 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 45. West wind 5 to 7 mph becoming calm in the evening.

    Low: 45 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 3pm. Mostly sunny, with a high near 76. Calm wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 60%.

    High: 76 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 41. North northeast wind 5 to 7 mph.

    Low: 41 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 71.

    High: 71 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 42. West northwest wind 5 to 9 mph becoming calm in the evening.
Sunday
Sunny, with a high near 79. Calm wind becoming west 5 to 9 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 46. West wind around 6 mph becoming calm in the evening.
Monday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 80. Calm wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 45. West wind 5 to 7 mph becoming calm in the evening.
Tuesday
Showers likely, with thunderstorms also possible after 3pm. Mostly sunny, with a high near 76. Calm wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 60%.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 41. North northeast wind 5 to 7 mph.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 71.
Wednesday Night
Mostly clear, with a low around 38.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 75.
Thursday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 41.
Friday
A slight chance of showers and thunderstorms. Sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 42.
Saturday
Sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Norris WY
 44.72°N 110.71°W (Elev. 7585 ft)
Last Update:
5:43 pm MDT Jul 12, 2025
Forecast Valid:
5pm MDT Jul 12, 2025-6pm MDT Jul 19, 2025
 
Forecast Discussion
 
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Additional Resources

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