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

Arrow Creek Hill I-90 MP 468.6 (MTARC)

Lat: 45.78°NLon: 108.16341°WElev: 3924.0ft.

NA

35°F

2°C

Humidity 50%
Wind Speed E 4 MPH
Barometer NA
Dewpoint 18°F (-8°C)
Visibility NA
Wind Chill32°F (0°C)
Last update 27 Feb 07:30 PM MST
Extended Forecast for

5 Miles W Pompeys Pillar MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 34. West wind 8 to 13 mph.

    Low: 34 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 45. East northeast wind 9 to 14 mph.

    High: 45 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 21. East northeast wind 6 to 11 mph becoming light northeast after midnight.

    Low: 21 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 52. Calm wind.

    High: 52 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 30. Light and variable wind.

    Low: 30 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 60. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 60 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 29. North northeast wind around 6 mph becoming calm in the evening.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 63. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 63 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 36. South wind around 5 mph becoming calm in the evening.

    Low: 36 °F

    Increasing
    Clouds

Detailed Forecast

Tonight
Mostly cloudy, with a low around 34. West wind 8 to 13 mph.
Saturday
Mostly sunny, with a high near 45. East northeast wind 9 to 14 mph.
Saturday Night
Partly cloudy, with a low around 21. East northeast wind 6 to 11 mph becoming light northeast after midnight.
Sunday
Mostly sunny, with a high near 52. Calm wind.
Sunday Night
Partly cloudy, with a low around 30. Light and variable wind.
Monday
Mostly sunny, with a high near 60. Calm wind becoming north northwest around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 29. North northeast wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 63. Calm wind becoming west southwest around 5 mph in the afternoon.
Tuesday Night
Increasing clouds, with a low around 36. South wind around 5 mph becoming calm in the evening.
Wednesday
Mostly cloudy, with a high near 63. West southwest wind 3 to 7 mph.
Wednesday Night
A 50 percent chance of showers. Cloudy, with a low around 35. North northeast wind around 6 mph becoming northwest after midnight.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 52. Northwest wind 7 to 10 mph.
Thursday Night
A slight chance of rain and snow showers. Mostly cloudy, then gradually becoming mostly clear, with a low around 29. North northwest wind 5 to 8 mph becoming west southwest in the evening. Chance of precipitation is 20%.
Friday
Sunny, with a high near 57. West southwest wind 5 to 11 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Pompeys Pillar MT
 45.97°N 108.06°W (Elev. 2986 ft)
Last Update:
5:03 pm MST Feb 27, 2026
Forecast Valid:
7pm MST Feb 27, 2026-6pm MST Mar 6, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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