Severe Thunderstorms in the Southern Plains; Coastal Storm to Bring Rain and Wind to New England

Severe thunderstorms are possible across parts of the southern Plains today. Large hail is the main threat, along with some damaging winds. A few instances of 2+ inch diameter hail are possible. A storm system moving north along the New England coast will bring heavy rain and gusty winds to the region through Friday. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NP (YLAW4)

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

NA

37°F

3°C

Humidity 63%
Wind Speed SSW 4 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Wind Chill34°F (1°C)
Last update 22 May 05:15 AM MDT
Extended Forecast for

17 Miles SE Big Sky MT

  • Today

    Today: A slight chance of showers between 1pm and 3pm, then a chance of showers and thunderstorms after 3pm.  Snow level rising to 10100 feet in the afternoon. Partly sunny, with a high near 54. Breezy, with a southeast wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 25 mph.  Chance of precipitation is 30%.

    High: 54 °F

    Partly Sunny
    then Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 8pm.  Snow level 9700 feet lowering to 7700 feet after midnight . Partly cloudy, with a low around 29. Southwest wind 9 to 14 mph becoming light and variable  after midnight. Winds could gust as high as 21 mph.

    Low: 29 °F

    Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly after 5pm.  Snow level rising to 9500 feet in the afternoon. Mostly sunny, with a high near 54. Light and variable wind becoming west 5 to 10 mph in the morning.

    High: 54 °F

    Sunny then
    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before midnight.  Mostly cloudy, with a low around 34. West wind 5 to 7 mph becoming calm  in the evening.

    Low: 34 °F

    Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm after noon.  Mostly sunny, with a high near 56. Calm wind becoming north 5 to 9 mph in the afternoon.  Chance of precipitation is 60%.

    High: 56 °F

    Mostly Sunny
    then Showers
    Likely

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 35. North wind 5 to 9 mph becoming calm  after midnight.

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 61. Calm wind becoming north 5 to 8 mph in the afternoon.

    High: 61 °F

    Sunny

  • Sunday Night

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

    Low: 38 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: A 20 percent chance of showers and thunderstorms after noon.  Sunny, with a high near 66.

    High: 66 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
A slight chance of showers between 1pm and 3pm, then a chance of showers and thunderstorms after 3pm. Snow level rising to 10100 feet in the afternoon. Partly sunny, with a high near 54. Breezy, with a southeast wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 30%.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 8pm. Snow level 9700 feet lowering to 7700 feet after midnight . Partly cloudy, with a low around 29. Southwest wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Snow level rising to 9500 feet in the afternoon. Mostly sunny, with a high near 54. Light and variable wind becoming west 5 to 10 mph in the morning.
Friday Night
A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 34. West wind 5 to 7 mph becoming calm in the evening.
Saturday
Showers likely and possibly a thunderstorm after noon. Mostly sunny, with a high near 56. Calm wind becoming north 5 to 9 mph in the afternoon. Chance of precipitation is 60%.
Saturday Night
Mostly clear, with a low around 35. North wind 5 to 9 mph becoming calm after midnight.
Sunday
Sunny, with a high near 61. Calm wind becoming north 5 to 8 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 38.
Memorial Day
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 66.
Monday Night
A 30 percent chance of showers before midnight. Partly cloudy, with a low around 41.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 66.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 41.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles SE Big Sky MT
 45.08°N 111.1°W (Elev. 7615 ft)
3:59 am MDT May 22, 2025
6am MDT May 22, 2025-6pm MDT May 28, 2025
 
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Additional Resources

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Hourly Weather Forecast

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