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

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Hazardous Weather Conditions

Current conditions at

JETTE (JETM8)

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

NA

69°F

21°C

Humidity 23%
Wind Speed S 2 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 17 Oct 03:43 PM MDT
Extended Forecast for

5 Miles NNW Big Arm MT

Lake Wind Advisory until October 17, 07:00pm
Click here for hazard details and duration
Lake Wind Advisory
  •  
    Lake Wind Advisory until October 17, 07:00pm

    NOW until 7:00pm Sat

    Lake Wind Advisory

  • This Afternoon

    High: 61 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 36. West southwest wind 10 to 15 mph becoming light west after midnight. Winds could gust as high as 24 mph.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 54. Calm wind.

    High: 54 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 56. Calm wind.

    High: 56 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Partly sunny, with a high near 61. Southwest wind around 20 mph, with gusts as high as 28 mph.
Tonight
Partly cloudy, with a low around 36. West southwest wind 10 to 15 mph becoming light west after midnight. Winds could gust as high as 24 mph.
Sunday
Sunny, with a high near 54. Calm wind.
Sunday Night
Mostly cloudy, with a low around 38. Calm wind.
Monday
Partly sunny, with a high near 56. Calm wind.
Monday Night
Mostly cloudy, with a low around 41.
Tuesday
Partly sunny, with a high near 57.
Tuesday Night
Mostly clear, with a low around 39.
Wednesday
Sunny, with a high near 58.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Mostly sunny, with a high near 59.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 42.
Friday
A chance of rain. Mostly cloudy, with a high near 49.
Friday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 34.
Saturday
Partly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Big Arm MT
 47.86°N 114.33°W (Elev. 3907 ft)
Last Update:
2:01 pm MDT Oct 17, 2026
Forecast Valid:
4pm MDT Oct 17, 2026-6pm MDT Oct 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation