Dangerous heat and humidity from the central U.S. to East Coast this weekend

Hot and very humid conditions will push the heat index to well over 100 degrees across a large portion of the central and eastern U.S. Excessive Heat Warnings and Heat Advisories are in effect for much of the Plains, Miss. Valley, Midwest, Ohio Valley, Mid-Atlantic and southern states. Be very cautious if you must do outdoor activities in these areas during the afternoon and evening this weekend. Read More >

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

Lat: 45.34534°NLon: 111.17261°WElev: 5699ft.

NA

72°F

22°C

Humidity 26%
Wind Speed NW 4 G 12 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 23 Jul 6:40 pm MDT
Extended Forecast for

11 Miles E Big Sky MT

  • Tonight

    Tonight: Isolated showers and thunderstorms before 9pm.  Partly cloudy, with a low around 41. Northwest wind 6 to 14 mph becoming south southeast after midnight. Winds could gust as high as 20 mph.  Chance of precipitation is 20%.

    Isolated
    T-storms then
    Mostly Clear

    Low: 41 °F

  • Sunday

    Sunday: Sunny, with a high near 69. South wind 5 to 8 mph.

    Sunny

    High: 69 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 49. West southwest wind 6 to 11 mph becoming east southeast in the evening.

    Mostly Clear

    Low: 49 °F

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 72. Southwest wind around 10 mph.

    Sunny then
    Slight Chance
    T-storms

    High: 72 °F

  • Monday
    Night

    Monday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 49. Northwest wind around 6 mph becoming calm  after midnight.

    Slight Chance
    T-storms then
    Mostly Clear

    Low: 49 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73.

    Mostly Sunny

    High: 73 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 47.

    Partly Cloudy

    Low: 47 °F

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 70.

    Mostly Sunny
    then Slight
    Chance
    T-storms

    High: 70 °F

  • Wednesday
    Night

    Wednesday Night: A slight chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 46.

    Slight Chance
    T-storms then
    Partly Cloudy

    Low: 46 °F

Detailed Forecast

Tonight
Isolated showers and thunderstorms before 9pm. Partly cloudy, with a low around 41. Northwest wind 6 to 14 mph becoming south southeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 69. South wind 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 49. West southwest wind 6 to 11 mph becoming east southeast in the evening.
Monday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 72. Southwest wind around 10 mph.
Monday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 49. Northwest wind around 6 mph becoming calm after midnight.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 70.
Wednesday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 46.
Thursday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 68.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 45.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 47.
Saturday
Sunny, with a high near 73.
Click Map For Forecast
Point Forecast:
11 Miles E Big Sky MT
 45.27°N 111.11°W (Elev. 9341 ft)
2:34 pm MDT Jul 23, 2016
7pm MDT Jul 23, 2016-6pm MDT Jul 30, 2016
 
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