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

86°F

30°C

Humidity 20%
Wind Speed W 11 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Heat Index83°F (28°C)
Last update 04 Jul 05:15 PM MDT
Extended Forecast for

6 Miles WNW Marysville MT

  • Tonight

    Tonight: Mostly clear, with a low around 55. West wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 23 mph.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 81. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 7pm. Partly cloudy, with a low around 53. West northwest wind 5 to 7 mph becoming calm. Winds could gust as high as 20 mph.

    Low: 53 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 73. North northeast wind 5 to 7 mph.

    High: 73 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. North northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 78. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 78 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56. West northwest wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 82 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 54.

    Low: 54 °F

    Slight Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 55. West wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 23 mph.
Sunday
Sunny, with a high near 81. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph.
Sunday Night
A 20 percent chance of showers before 7pm. Partly cloudy, with a low around 53. West northwest wind 5 to 7 mph becoming calm. Winds could gust as high as 20 mph.
Monday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 73. North northeast wind 5 to 7 mph.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. North northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 78. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 30%.
Tuesday Night
Mostly clear, with a low around 56. West northwest wind around 5 mph becoming calm in the evening.
Wednesday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 54.
Thursday
Sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 79.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 83.
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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:
4:07 pm MDT Jul 4, 2026
Forecast Valid:
5pm MDT Jul 4, 2026-6pm MDT Jul 11, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation