Dangerous Heat Wave for the West; Severe Storms and Heavy Rain for Midwest and Plains

Severe storms and heavy rains are likely in the Upper Midwest and Plains through this evening. A long duration heat wave will build across the West through next week with excessive heat watches/warnings in effect from the Southwest to Northwest. TS Josephine is forecast to pass well north of Puerto Rico and the Virgin Islands while TS Kyle is forecast to move quickly away from land this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH (YLAW4)

Lat: 44.977222°NLon: 110.695278°WElev: 6300ft.

NA

67°F

19°C

Humidity 26%
Wind Speed WSW 1 MPH
Barometer 1005.76 mb
Dewpoint 31°F (-1°C)
Visibility NA
Last update 14 Aug 09:15 PM MDT
Extended Forecast for

17 Miles SE Big Sky MT

  • Tonight

    Tonight: Clear, with a low around 46. West southwest wind around 6 mph becoming calm  in the evening.

    Clear

    Low: 46 °F

  • Saturday

    Saturday: Sunny, with a high near 74. Calm wind becoming west 5 to 9 mph in the morning.

    Sunny

    High: 74 °F

  • Saturday
    Night

    Saturday Night: Clear, with a low around 50. West wind 5 to 9 mph becoming calm  in the evening.

    Clear

    Low: 50 °F

  • Sunday

    Sunday: Sunny, with a high near 79. Light and variable wind becoming west around 6 mph in the morning.

    Sunny

    High: 79 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 55. Northwest wind around 6 mph becoming light and variable  in the evening.

    Partly Cloudy

    Low: 55 °F

  • Monday

    Monday: Mostly sunny, with a high near 82. Light and variable wind becoming west 5 to 7 mph in the afternoon.

    Mostly Sunny

    High: 82 °F

  • Monday
    Night

    Monday Night: A 20 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 57. Northwest wind 5 to 7 mph becoming calm  after midnight.

    Slight Chance
    T-storms then
    Mostly Cloudy

    Low: 57 °F

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 78.

    Partly Sunny
    then Slight
    Chance
    T-storms

    High: 78 °F

  • Tuesday
    Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 53.

    Slight Chance
    T-storms then
    Mostly Cloudy

    Low: 53 °F

Detailed Forecast

Tonight
Clear, with a low around 46. West southwest wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 74. Calm wind becoming west 5 to 9 mph in the morning.
Saturday Night
Clear, with a low around 50. West wind 5 to 9 mph becoming calm in the evening.
Sunday
Sunny, with a high near 79. Light and variable wind becoming west around 6 mph in the morning.
Sunday Night
Partly cloudy, with a low around 55. Northwest wind around 6 mph becoming light and variable in the evening.
Monday
Mostly sunny, with a high near 82. Light and variable wind becoming west 5 to 7 mph in the afternoon.
Monday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 57. Northwest wind 5 to 7 mph becoming calm after midnight.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 78.
Tuesday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 53.
Wednesday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 76.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 51.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 76.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 75.
Click Map For Forecast
Point Forecast:
17 Miles SE Big Sky MT
 45.08°N 111.1°W (Elev. 7615 ft)
9:29 pm MDT Aug 14, 2020
10pm MDT Aug 14, 2020-6pm MDT Aug 21, 2020
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database