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

Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

JETTE (JETM8)

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

NA

50°F

10°C

Humidity 40%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 18 Apr 07:43 PM MDT
Extended Forecast for

3 Miles NW Big Arm MT

  • Tonight

    Tonight: Mostly clear, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 64. Light and variable wind.

    High: 64 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 72. Light and variable wind.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: A chance of rain, then showers and possibly a thunderstorm after noon. Mostly cloudy, with a high near 60.

    High: 60 °F

    Showers

  • Wednesday Night

    Wednesday Night: Rain. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 33. Calm wind.
Sunday
Sunny, with a high near 64. Light and variable wind.
Sunday Night
Mostly cloudy, with a low around 41. Calm wind.
Monday
Sunny, with a high near 72. Light and variable wind.
Monday Night
Partly cloudy, with a low around 44. Calm wind.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 46.
Wednesday
A chance of rain, then showers and possibly a thunderstorm after noon. Mostly cloudy, with a high near 60.
Wednesday Night
Rain. Mostly cloudy, with a low around 38.
Thursday
A chance of rain before 9am, then a chance of rain and snow between 9am and 3pm, then a chance of rain after 3pm. Mostly cloudy, with a high near 52.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 32.
Friday
A slight chance of rain. Mostly sunny, with a high near 53.
Friday Night
Partly cloudy, with a low around 32.
Saturday
Mostly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Big Arm MT
 47.84°N 114.32°W (Elev. 2940 ft)
Last Update:
2:01 pm MDT Apr 18, 2026
Forecast Valid:
8pm MDT Apr 18, 2026-6pm MDT Apr 25, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation