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

Areas of Severe Thunderstorms and Heat This Weekend

Severe thunderstorms today may produce damaging winds, large hail, tornadoes, and flooding over parts of the Plains into the Missouri Valley. On Sunday, scattered severe thunderstorms capable of damaging wind gusts are expected across the Mid-Atlantic vicinity. Hazardous heat will continue in the South, Southwest and central California this weekend building across the Pacific Northwest Sunday. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

50°F

10°C

Humidity 56%
Wind Speed NNW 6 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Wind Chill48°F (9°C)
Last update 13 Jun 09:15 AM MDT
Extended Forecast for

18 Miles SE Big Sky MT

  • Today

    Today: Mostly sunny, with a high near 55. North northeast wind 7 to 14 mph.

    High: 55 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 32. North northeast wind 8 to 13 mph becoming light north after midnight.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 65. Calm wind becoming north 5 to 9 mph in the morning.

    High: 65 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36. North wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 21 mph.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 71. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 71 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 44. West northwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 21 mph.

    Low: 44 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 76. Breezy, with a light southwest wind becoming west 12 to 17 mph in the morning. Winds could gust as high as 36 mph.

    High: 76 °F

    Sunny then
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 45. Breezy.

    Low: 45 °F

    Mostly Clear
    and Breezy
    then Clear

  • Wednesday

    Wednesday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 55. North northeast wind 7 to 14 mph.
Tonight
Mostly clear, with a low around 32. North northeast wind 8 to 13 mph becoming light north after midnight.
Sunday
Mostly sunny, with a high near 65. Calm wind becoming north 5 to 9 mph in the morning.
Sunday Night
Mostly clear, with a low around 36. North wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 21 mph.
Monday
Mostly sunny, with a high near 71. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph.
Monday Night
Mostly cloudy, with a low around 44. West northwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 21 mph.
Tuesday
Sunny, with a high near 76. Breezy, with a light southwest wind becoming west 12 to 17 mph in the morning. Winds could gust as high as 36 mph.
Tuesday Night
Mostly clear, with a low around 45. Breezy.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 38.
Thursday
Sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 42.
Juneteenth
Sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
18 Miles SE Big Sky MT
 45.05°N 111.13°W (Elev. 6916 ft)
Last Update:
8:03 am MDT Jun 13, 2026
Forecast Valid:
9am MDT Jun 13, 2026-6pm MDT Jun 19, 2026
 
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