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 >

Current conditions at

MAIN BOULDER (MBRM8)

Lat: 45.45813°NLon: 110.19768°WElev: 5405.0ft.

NA

54°F

12°C

Humidity 30%
Wind Speed SSE 3 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Last update 17 Oct 11:39 PM MDT
Extended Forecast for

8 Miles N Cooke City MT

  • Overnight

    Overnight: Partly cloudy, with a low around 27. South wind 9 to 13 mph.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 40. West southwest wind 8 to 13 mph.

    High: 40 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 28. South southwest wind 8 to 11 mph.

    Low: 28 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 42. South southwest wind 9 to 13 mph.

    High: 42 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 30. South southwest wind 7 to 10 mph.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 42. South southwest wind 8 to 10 mph.

    High: 42 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain and snow showers before midnight. Partly cloudy, with a low around 30. Light and variable wind becoming southeast 5 to 7 mph in the evening. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 30 °F

    Chance
    Rain/Snow
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 43. East southeast wind 7 to 14 mph becoming southwest in the afternoon.

    High: 43 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers. Mostly clear, with a low around 33. South southeast wind 7 to 11 mph.

    Low: 33 °F

    Slight Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 27. South wind 9 to 13 mph.
Sunday
Mostly sunny, with a high near 40. West southwest wind 8 to 13 mph.
Sunday Night
Mostly clear, with a low around 28. South southwest wind 8 to 11 mph.
Monday
Sunny, with a high near 42. South southwest wind 9 to 13 mph.
Monday Night
Mostly clear, with a low around 30. South southwest wind 7 to 10 mph.
Tuesday
Mostly sunny, with a high near 42. South southwest wind 8 to 10 mph.
Tuesday Night
A chance of rain and snow showers before midnight. Partly cloudy, with a low around 30. Light and variable wind becoming southeast 5 to 7 mph in the evening. Chance of precipitation is 30%. Little or no snow accumulation expected.
Wednesday
Mostly sunny, with a high near 43. East southeast wind 7 to 14 mph becoming southwest in the afternoon.
Wednesday Night
A 20 percent chance of showers. Mostly clear, with a low around 33. South southeast wind 7 to 11 mph.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 44. Southeast wind 9 to 16 mph becoming southwest in the afternoon.
Thursday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 33. South wind 8 to 11 mph. Chance of precipitation is 50%.
Friday
Snow showers. The snow could be heavy at times. High near 35. Southwest wind 10 to 13 mph. Chance of precipitation is 90%.
Friday Night
Snow showers. The snow could be heavy at times. Low around 25. North northwest wind 10 to 14 mph. Chance of precipitation is 80%.
Saturday
A 30 percent chance of snow showers. Partly sunny, with a high near 30. Southwest wind around 11 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles N Cooke City MT
 45.13°N 109.92°W (Elev. 10400 ft)
Last Update:
12:32 am MDT Oct 18, 2026
Forecast Valid:
12am MDT Oct 18, 2026-6pm MDT Oct 24, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation