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

Sweetgrass I-15 MP 395.3 (MTSWT)

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

NA

35°F

2°C

Humidity 99%
Wind Speed WNW 8 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Wind Chill28°F (-2°C)
Last update 13 Apr 02:00 AM MDT
Extended Forecast for

9 Miles NNW Sunburst MT

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 31. North wind 3 to 5 mph.

    Low: 31 °F

    Patchy Fog

  • Monday

    Monday: A slight chance of rain before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then a chance of rain after 5pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 57. Light and variable wind becoming west southwest 6 to 11 mph in the morning. Chance of precipitation is 50%.

    High: 57 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of rain before 8pm. Partly cloudy, with a low around 38. West wind 13 to 16 mph, with gusts as high as 24 mph.

    Low: 38 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 56. Breezy, with a west southwest wind 14 to 22 mph, with gusts as high as 31 mph.

    High: 56 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36. Breezy, with a southwest wind 17 to 22 mph, with gusts as high as 31 mph.

    Low: 36 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 55. Breezy, with a southwest wind 17 to 23 mph, with gusts as high as 32 mph.

    High: 55 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before midnight, then snow. Low around 20. West wind 16 to 18 mph becoming north northwest in the evening. Winds could gust as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Low: 20 °F

    Chance
    Rain/Snow
    then Snow

  • Thursday

    Thursday: Snow likely, mainly before noon. Mostly cloudy, with a high near 33. Breezy, with a north northwest wind 20 to 23 mph, with gusts as high as 32 mph.

    High: 33 °F

    Snow Likely
    and Breezy

  • Thursday Night

    Thursday Night: A slight chance of snow before midnight. Mostly cloudy, with a low around 16.

    Low: 16 °F

    Slight Chance
    Snow then
    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 31. North wind 3 to 5 mph.
Monday
A slight chance of rain before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then a chance of rain after 5pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 57. Light and variable wind becoming west southwest 6 to 11 mph in the morning. Chance of precipitation is 50%.
Monday Night
A 20 percent chance of rain before 8pm. Partly cloudy, with a low around 38. West wind 13 to 16 mph, with gusts as high as 24 mph.
Tuesday
Mostly sunny, with a high near 56. Breezy, with a west southwest wind 14 to 22 mph, with gusts as high as 31 mph.
Tuesday Night
Mostly cloudy, with a low around 36. Breezy, with a southwest wind 17 to 22 mph, with gusts as high as 31 mph.
Wednesday
Partly sunny, with a high near 55. Breezy, with a southwest wind 17 to 23 mph, with gusts as high as 32 mph.
Wednesday Night
A chance of rain and snow before midnight, then snow. Low around 20. West wind 16 to 18 mph becoming north northwest in the evening. Winds could gust as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Thursday
Snow likely, mainly before noon. Mostly cloudy, with a high near 33. Breezy, with a north northwest wind 20 to 23 mph, with gusts as high as 32 mph.
Thursday Night
A slight chance of snow before midnight. Mostly cloudy, with a low around 16.
Friday
Mostly sunny, with a high near 43.
Friday Night
Partly cloudy, with a low around 24.
Saturday
Mostly sunny, with a high near 54.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Mostly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NNW Sunburst MT
 48.99°N 111.96°W (Elev. 3579 ft)
Last Update:
12:27 am MDT Apr 13, 2026
Forecast Valid:
2am MDT Apr 13, 2026-6pm MDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation