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

Sieben I-15 MP 216 (MTSBN)

Lat: 46.88748267°NLon: 112.1111196°WElev: 4199.0ft.

NA

77°F

25°C

Humidity 36%
Wind Speed NW 16 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Heat Index78°F (26°C)
Last update 02 Aug 04:00 PM MDT
Extended Forecast for

6 Miles WNW Marysville MT

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly before 5pm. Partly sunny, with a high near 72. West wind around 15 mph, with gusts as high as 24 mph.

    High: 72 °F

    Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 52. West southwest wind 7 to 15 mph, with gusts as high as 23 mph.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 78. West wind 7 to 11 mph, with gusts as high as 18 mph.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 55. West wind 5 to 9 mph becoming calm after midnight.

    Low: 55 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 78. Calm wind becoming east 5 to 7 mph in the afternoon. Chance of precipitation is 40%.

    High: 78 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 53. West northwest wind 3 to 7 mph.

    Low: 53 °F

    Chance
    T-storms then
    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 10 percent chance of showers after noon. Mostly sunny, with a high near 74. Light west southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 22 mph.

    High: 74 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 53. West wind 5 to 10 mph becoming light west southwest after midnight. Winds could gust as high as 21 mph.

    Low: 53 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly before 5pm. Partly sunny, with a high near 72. West wind around 15 mph, with gusts as high as 24 mph.
Tonight
Partly cloudy, with a low around 52. West southwest wind 7 to 15 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 78. West wind 7 to 11 mph, with gusts as high as 18 mph.
Sunday Night
Partly cloudy, with a low around 55. West wind 5 to 9 mph becoming calm after midnight.
Monday
A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 78. Calm wind becoming east 5 to 7 mph in the afternoon. Chance of precipitation is 40%.
Monday Night
A 50 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 53. West northwest wind 3 to 7 mph.
Tuesday
A 10 percent chance of showers after noon. Mostly sunny, with a high near 74. Light west southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 53. West wind 5 to 10 mph becoming light west southwest after midnight. Winds could gust as high as 21 mph.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Partly sunny, with a high near 76.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 69.
Friday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 50.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WNW Marysville MT
 46.78°N 112.42°W (Elev. 4905 ft)
Last Update:
2:44 pm MDT Aug 2, 2025
Forecast Valid:
4pm MDT Aug 2, 2025-6pm MDT Aug 9, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation