Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Sweetgrass I-15 MP 395.3 (MTSWT)

Lat: 48.96017°NLon: 111.94071°WElev: 3471.0ft.

NA

77°F

25°C

Humidity 31%
Wind Speed W 16 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Heat Index78°F (26°C)
Last update 27 Aug 11:30 AM MDT
Extended Forecast for

8 Miles NNW Sunburst MT

  • Today

    Today: A slight chance of showers and thunderstorms between 4pm and 5pm.  Partly sunny, with a high near 88. South wind 9 to 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 58. South southeast wind 11 to 14 mph becoming west southwest after midnight. Winds could gust as high as 20 mph.

    Low: 58 °F

    Decreasing
    Clouds

  • Friday

    Friday: Patchy smoke between noon and 3pm. Sunny, with a high near 81. West southwest wind 11 to 17 mph, with gusts as high as 28 mph.

    High: 81 °F

    Sunny then
    Patchy Smoke

  • Friday Night

    Friday Night: Patchy smoke before 7pm. Mostly cloudy, with a low around 54. West southwest wind 7 to 16 mph, with gusts as high as 24 mph.

    Low: 54 °F

    Patchy Smoke
    then Partly
    Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers, mainly after noon.  Partly sunny, with a high near 75. West southwest wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 75 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 50 percent chance of showers.  Mostly cloudy, with a low around 50. Southwest wind 11 to 13 mph, with gusts as high as 20 mph.

    Low: 50 °F

    Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers.  Partly sunny, with a high near 65. West wind 10 to 18 mph, with gusts as high as 28 mph.

    High: 65 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers, mainly before midnight.  Partly cloudy, with a low around 46. West wind 11 to 20 mph, with gusts as high as 26 mph.

    Low: 46 °F

    Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers and thunderstorms between 4pm and 5pm. Partly sunny, with a high near 88. South wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 58. South southeast wind 11 to 14 mph becoming west southwest after midnight. Winds could gust as high as 20 mph.
Friday
Patchy smoke between noon and 3pm. Sunny, with a high near 81. West southwest wind 11 to 17 mph, with gusts as high as 28 mph.
Friday Night
Patchy smoke before 7pm. Mostly cloudy, with a low around 54. West southwest wind 7 to 16 mph, with gusts as high as 24 mph.
Saturday
A 30 percent chance of showers, mainly after noon. Partly sunny, with a high near 75. West southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 50. Southwest wind 11 to 13 mph, with gusts as high as 20 mph.
Sunday
A 50 percent chance of showers. Partly sunny, with a high near 65. West wind 10 to 18 mph, with gusts as high as 28 mph.
Sunday Night
A chance of showers, mainly before midnight. Partly cloudy, with a low around 46. West wind 11 to 20 mph, with gusts as high as 26 mph.
Monday
Sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 52.
Wednesday
Mostly sunny, with a high near 71. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NNW Sunburst MT
 48.99°N 111.96°W (Elev. 3579 ft)
7:47 am MDT Aug 27, 2026
11am MDT Aug 27, 2026-6pm MDT Sep 2, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database