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

80°F

27°C

Humidity 16%
Wind Speed SSE 10 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Heat Index78°F (26°C)
Last update 24 Sep 05:16 PM MDT
Extended Forecast for

9 Miles S Pompeys Pillar MT

  • Tonight

    Tonight: Mostly clear, with a low around 52. Southeast wind 5 to 9 mph becoming light after midnight.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 83. Calm wind becoming south southeast 5 to 8 mph in the afternoon.

    High: 83 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 51. Southeast wind 5 to 9 mph becoming north after midnight.

    Low: 51 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 71. East wind 3 to 7 mph.

    High: 71 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 47. North northeast wind around 8 mph.

    Low: 47 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 67. Northeast wind 5 to 7 mph.

    High: 67 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 49. Northeast wind around 6 mph becoming light and variable.

    Low: 49 °F

    Chance
    Showers

  • Monday

    Monday: A 50 percent chance of showers. Mostly cloudy, with a high near 63. West northwest wind 3 to 8 mph.

    High: 63 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 46. North wind around 6 mph becoming light and variable.

    Low: 46 °F

    Slight Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 52. Southeast wind 5 to 9 mph becoming light after midnight.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 83. Calm wind becoming south southeast 5 to 8 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 51. Southeast wind 5 to 9 mph becoming north after midnight.
Saturday
Mostly sunny, with a high near 71. East wind 3 to 7 mph.
Saturday Night
Partly cloudy, with a low around 47. North northeast wind around 8 mph.
Sunday
Partly sunny, with a high near 67. Northeast wind 5 to 7 mph.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 49. Northeast wind around 6 mph becoming light and variable.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 63. West northwest wind 3 to 8 mph.
Monday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 46. North wind around 6 mph becoming light and variable.
Tuesday
Mostly sunny, with a high near 66. West wind 5 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 47. Southwest wind 3 to 5 mph.
Wednesday
Mostly sunny, with a high near 68. West wind 6 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 45. North northwest wind around 6 mph becoming light and variable after midnight.
Thursday
Mostly sunny, with a high near 68. Light and variable wind becoming west 5 to 7 mph in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles S Pompeys Pillar MT
 45.85°N 107.95°W (Elev. 3068 ft)
Last Update:
12:32 pm MDT Sep 24, 2026
Forecast Valid:
5pm MDT Sep 24, 2026-6pm MDT Oct 1, 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