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

JETTE (JETM8)

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

NA

42°F

6°C

Humidity 100%
Wind Speed ESE 0 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Last update 05 Oct 01:43 AM MDT
Extended Forecast for

Big Arm MT

  • Overnight

    Overnight: Rain, mainly before 3am. Low around 40. North northeast wind 13 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Rain

  • Sunday

    Sunday: A 20 percent chance of rain before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 52. Northeast wind 5 to 10 mph becoming light in the afternoon.

    High: 52 °F

    Slight Chance
    Rain then
    Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 3am. Otherwise, mostly clear, with a low around 35. Calm wind.

    Low: 35 °F

    Mostly Clear
    then Areas
    Frost

  • Monday

    Monday: Areas of frost before 8am. Otherwise, sunny, with a high near 55. Light south southwest wind.

    High: 55 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Clear, with a low around 38. Calm wind.

    Low: 38 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 42.

    Low: 42 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain after midnight. Partly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Clear
    then Slight
    Chance Rain

Detailed Forecast

Overnight
Rain, mainly before 3am. Low around 40. North northeast wind 13 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A 20 percent chance of rain before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 52. Northeast wind 5 to 10 mph becoming light in the afternoon.
Sunday Night
Areas of frost after 3am. Otherwise, mostly clear, with a low around 35. Calm wind.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 55. Light south southwest wind.
Monday Night
Clear, with a low around 38. Calm wind.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Clear, with a low around 42.
Wednesday
Sunny, with a high near 63.
Wednesday Night
A slight chance of rain after midnight. Partly cloudy, with a low around 43.
Thursday
A slight chance of rain. Mostly sunny, with a high near 62.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 42.
Friday
Sunny, with a high near 63.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 44.
Saturday
A chance of rain. Mostly sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Big Arm MT
 47.8°N 114.28°W (Elev. 3060 ft)
Last Update:
2:30 pm MDT Oct 4, 2025
Forecast Valid:
2am MDT Oct 5, 2025-6pm MDT Oct 11, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation