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

Boulder Hill I-15 MP 170.9 (MTBOU)

Lat: 46.3233°NLon: 112.06891°WElev: 5593.0ft.

NA

57°F

14°C

Humidity 30%
Wind Speed SSW 9 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 18 Oct 03:45 PM MDT
Extended Forecast for

3 Miles NE Boulder MT

  • Tonight

    Tonight: Mostly clear, with a low around 38. Calm wind becoming south 5 to 7 mph after midnight.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 66. South wind 7 to 11 mph.

    High: 66 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40. South southeast wind 3 to 7 mph.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 62. Calm wind becoming east around 6 mph in the afternoon.

    High: 62 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 38. Light and variable wind.

    Low: 38 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 65. Light south southwest wind becoming south 5 to 9 mph in the morning.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43. South southwest wind around 6 mph.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 65. South wind 5 to 11 mph, with gusts as high as 20 mph.

    High: 65 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 38. Calm wind becoming south 5 to 7 mph after midnight.
Monday
Sunny, with a high near 66. South wind 7 to 11 mph.
Monday Night
Mostly cloudy, with a low around 40. South southeast wind 3 to 7 mph.
Tuesday
Mostly sunny, with a high near 62. Calm wind becoming east around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 38. Light and variable wind.
Wednesday
Sunny, with a high near 65. Light south southwest wind becoming south 5 to 9 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 43. South southwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 65. South wind 5 to 11 mph, with gusts as high as 20 mph.
Thursday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 42.
Friday
Rain likely, mainly before noon. Mostly cloudy, with a high near 47.
Friday Night
A chance of rain and snow. Partly cloudy, with a low around 28.
Saturday
Mostly sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
A slight chance of rain and snow. Mostly sunny, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Boulder MT
 46.28°N 112.08°W (Elev. 4993 ft)
Last Update:
12:31 pm MDT Oct 18, 2026
Forecast Valid:
4pm MDT Oct 18, 2026-6pm MDT Oct 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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