Flooding Risks from Tropical Moisture Across the Intermountain West and East Coast

Tropical moisture from Isaias and Rachel will impact portions of the Intermountain West and East Coast states. Flooding, gusty winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, record warmth will spread northward across the Mississippi Valley the next few days. Looking for snow, the first winter storm of the season is underway across the northern Rockies. Read More >

Current conditions at

JETTE (JETM8)

Lat: 47.76706°NLon: 114.23378°WElev: 3593.0ft.

NA

38°F

3°C

Humidity 52%
Wind Speed NNE 2 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Last update 11 Oct 09:43 AM MDT
Extended Forecast for

9 Miles NNW Big Arm MT

Lake Wind Advisory until October 12, 06:00am
Click here for hazard details and duration
Lake Wind Advisory
  •  
    Lake Wind Advisory until October 12, 06:00am

    NOW until 6:00am Mon

    Lake Wind Advisory

  • Today

    High: 39 °F

    Snow Likely
    then Slight
    Chance Snow

  • Tonight

    Tonight: A 40 percent chance of snow, mainly between midnight and 4am.  Mostly cloudy, with a low around 29. North northeast wind 5 to 13 mph, with gusts as high as 29 mph.  Little or no snow accumulation expected.

    Low: 29 °F

    Chance Snow

  • Columbus Day

    Columbus Day: A slight chance of snow between 8am and 10am.  Partly sunny, with a high near 45. Light and variable wind.  Chance of precipitation is 20%.

    High: 45 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Monday Night

    Monday Night: Patchy fog between 4am and 5am.  Otherwise, mostly clear, with a low around 29. Calm wind.

    Low: 29 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog between 7am and 10am.  Otherwise, sunny, with a high near 50. Calm wind.

    High: 50 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • Wednesday

    Wednesday: Patchy fog between 7am and 10am.  Otherwise, sunny, with a high near 53.

    High: 53 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Today
Snow likely, mainly before noon. Cloudy, with a high near 39. Northeast wind 9 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.
Tonight
A 40 percent chance of snow, mainly between midnight and 4am. Mostly cloudy, with a low around 29. North northeast wind 5 to 13 mph, with gusts as high as 29 mph. Little or no snow accumulation expected.
Columbus Day
A slight chance of snow between 8am and 10am. Partly sunny, with a high near 45. Light and variable wind. Chance of precipitation is 20%.
Monday Night
Patchy fog between 4am and 5am. Otherwise, mostly clear, with a low around 29. Calm wind.
Tuesday
Patchy fog between 7am and 10am. Otherwise, sunny, with a high near 50. Calm wind.
Tuesday Night
Mostly clear, with a low around 32.
Wednesday
Patchy fog between 7am and 10am. Otherwise, sunny, with a high near 53.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
Mostly sunny, with a high near 55.
Thursday Night
Mostly clear, with a low around 36.
Friday
Sunny, with a high near 57.
Friday Night
Mostly clear, with a low around 39.
Saturday
Mostly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NNW Big Arm MT
 47.92°N 114.37°W (Elev. 3612 ft)
2:01 am MDT Oct 11, 2026
10am MDT Oct 11, 2026-6pm MDT Oct 17, 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