Thunderstorms and Heavy Rains in the Appalachians

Multiple rounds of moderate to locally heavy rain will impact portions of the Appalachians and Mid-Atlantic, which may lead to flash flooding concerns. Thunderstorms with isolated severe wind gusts will be possible this afternoon from parts of the Southeast into the southern and central Appalachians. A multi-day heavy rain will pose a flash flood threat in New Mexico beginning Tuesday. Read More >

Current conditions at

Sieben I-15 MP 216 (MTSBN)

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

NA

42°F

6°C

Humidity NA
Wind Speed W 2 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update NA
Extended Forecast for

Marysville MT

  • Today

    Today: Sunny, with a high near 64. South southwest wind 5 to 7 mph.

    High: 64 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 46. South wind 3 to 7 mph.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 64. South wind around 6 mph.

    High: 64 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Cloudy, then gradually becoming partly cloudy, with a low around 47. West southwest wind 5 to 9 mph.

    Low: 47 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 64. West southwest wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 64 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 48. Southwest wind 5 to 7 mph.

    Low: 48 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 68. Southeast wind 6 to 9 mph.

    High: 68 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52. South wind 6 to 8 mph.

    Low: 52 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 64. South southwest wind 5 to 7 mph.
Tonight
Mostly clear, with a low around 46. South wind 3 to 7 mph.
Tuesday
Mostly sunny, with a high near 64. South wind around 6 mph.
Tuesday Night
Cloudy, then gradually becoming partly cloudy, with a low around 47. West southwest wind 5 to 9 mph.
Wednesday
Sunny, with a high near 64. West southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 48. Southwest wind 5 to 7 mph.
Thursday
Sunny, with a high near 68. Southeast wind 6 to 9 mph.
Thursday Night
Partly cloudy, with a low around 52. South wind 6 to 8 mph.
Friday
Mostly sunny, with a high near 63.
Friday Night
A slight chance of rain before midnight. Partly cloudy, with a low around 42.
Saturday
A slight chance of rain. Mostly sunny, with a high near 51.
Saturday Night
A slight chance of rain. Partly cloudy, with a low around 37.
Sunday
Partly sunny, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
Marysville MT
 46.75°N 112.32°W (Elev. 6463 ft)
4:26 am MDT Sep 21, 2026
7am MDT Sep 21, 2026-6pm MDT Sep 27, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database