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

Extreme Heat Lingers; Severe Thunderstorms for Portions of the Plains and Southeast; Heavy Rainfall Threats

Gusty winds and heavy rainfall may impact the Big Island of Hawaii as a nearby tropical system passes west of the islands. From the Southwest U.S., Rockies and across the Gulf Coast, heavy rainfall could lead to isolated flash flooding. Severe thunderstorms are expected for areas of the Plains, Gulf Coast and Southeast through Tuesday. Extreme heat lingers for the southern Plains and Southwest. Read More >

Current conditions at

Sunburst I-15 MP 389 (MTSUN)

Lat: 48.88015°NLon: 111.89871°WElev: 3307.0ft.

unknown precip

N/A

Humidity NA
Wind Speed NA 17 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update NA
Extended Forecast for

Sunburst MT

  • Tonight

    Tonight: Mostly clear, with a low around 50. North wind 9 to 14 mph becoming light north northwest after midnight. Winds could gust as high as 20 mph.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79. Calm wind becoming southeast 5 to 7 mph in the afternoon.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 54. East southeast wind around 7 mph.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 86. South southeast wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 86 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 58. Southeast wind 8 to 11 mph, with gusts as high as 18 mph.

    Low: 58 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 90. South wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 90 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 56. South wind 11 to 14 mph, with gusts as high as 21 mph.

    Low: 56 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 82. West southwest wind 11 to 18 mph, with gusts as high as 29 mph.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 50. North wind 9 to 14 mph becoming light north northwest after midnight. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 79. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 54. East southeast wind around 7 mph.
Wednesday
Mostly sunny, with a high near 86. South southeast wind 7 to 13 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 58. Southeast wind 8 to 11 mph, with gusts as high as 18 mph.
Thursday
Mostly sunny, with a high near 90. South wind 7 to 11 mph, with gusts as high as 20 mph.
Thursday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 56. South wind 11 to 14 mph, with gusts as high as 21 mph.
Friday
Sunny, with a high near 82. West southwest wind 11 to 18 mph, with gusts as high as 29 mph.
Friday Night
Mostly clear, with a low around 53.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 48.
Sunday
A chance of showers. Mostly sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 47.
Monday
Sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sunburst MT
 48.89°N 111.91°W (Elev. 3399 ft)
Last Update:
12:31 pm MDT Aug 24, 2026
Forecast Valid:
3pm MDT Aug 24, 2026-6pm MDT Aug 31, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

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Chance of Precipitation