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

Hurricane and Storm Surge Watches Issued for the Northern Gulf Coast for Strengthening Tropical Storm Isaias

Tropical Storm Isaias is forecast to track toward the central Gulf Coast while strengthening into a hurricane on Thursday. There is an increasing risk of damaging hurricane-force winds and life-threatening storm surge impacts along portions of the northern Gulf Coast Friday into Saturday. Isaias will bring heavy rainfall to the central Gulf Coast and much of the Southeast Friday into the weekend. 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 4 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update NA
Extended Forecast for

Sunburst MT

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 67. Light southeast wind.

    High: 67 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 42. Light and variable wind becoming south 5 to 7 mph in the evening.

    Low: 42 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Increasing clouds, with a high near 74. Light and variable wind becoming south 5 to 7 mph in the afternoon.

    High: 74 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 50. South southwest wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 50 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 73. Breezy, with a southwest wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 73 °F

    Mostly Cloudy
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 38. West southwest wind 14 to 17 mph, with gusts as high as 29 mph.

    Low: 38 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: A chance of rain and snow. Mostly cloudy, with a high near 47. Breezy, with a north wind 17 to 24 mph, with gusts as high as 31 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 47 °F

    Chance
    Rain/Snow and
    Breezy

  • Saturday Night

    Saturday Night: Rain and snow, becoming all snow after 9pm. Cloudy, with a low around 25. Blustery, with a north wind 20 to 29 mph, with gusts as high as 39 mph.

    Low: 25 °F

    Blustery.
    Rain/Snow
    then Snow

  • Sunday

    Sunday: Snow likely, mainly before noon. Cloudy, with a high near 37.

    High: 37 °F

    Snow Likely

Detailed Forecast

This Afternoon
Partly sunny, with a high near 67. Light southeast wind.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 42. Light and variable wind becoming south 5 to 7 mph in the evening.
Thursday
Increasing clouds, with a high near 74. Light and variable wind becoming south 5 to 7 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 50. South southwest wind 8 to 10 mph, with gusts as high as 18 mph.
Friday
Mostly cloudy, with a high near 73. Breezy, with a southwest wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph.
Friday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 38. West southwest wind 14 to 17 mph, with gusts as high as 29 mph.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 47. Breezy, with a north wind 17 to 24 mph, with gusts as high as 31 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Saturday Night
Rain and snow, becoming all snow after 9pm. Cloudy, with a low around 25. Blustery, with a north wind 20 to 29 mph, with gusts as high as 39 mph.
Sunday
Snow likely, mainly before noon. Cloudy, with a high near 37.
Sunday Night
A chance of snow, mainly before midnight. Mostly cloudy, with a low around 24.
Columbus Day
Mostly sunny, with a high near 45.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Sunny, with a high near 54.
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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 Oct 7, 2026
Forecast Valid:
1pm MDT Oct 7, 2026-6pm MDT Oct 13, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation