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

63°F

17°C

Humidity 17%
Wind Speed W 10 MPH
Barometer NA
Dewpoint 17°F (-8°C)
Visibility NA
Last update 14 Apr 03:30 PM MDT
Extended Forecast for

5 Miles W Pompeys Pillar MT

  • Tonight

    Tonight: Partly cloudy, with a low around 42. Southwest wind 6 to 8 mph.

    Low: 42 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 70. West southwest wind 6 to 11 mph.

    High: 70 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 38. Southwest wind 5 to 11 mph becoming northwest after midnight.

    Low: 38 °F

    Chance
    Showers

  • Thursday

    Thursday: Rain and snow showers likely before noon, then snow showers likely between noon and 3pm, then rain and snow showers likely after 3pm. Mostly cloudy, with a high near 49. Northwest wind 9 to 15 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 49 °F

    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: A 40 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 26. North wind 5 to 11 mph. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Chance Snow
    Showers

  • Friday

    Friday: A 40 percent chance of snow showers, mainly after noon. Partly sunny, with a high near 49. Light west northwest wind becoming north northwest 6 to 11 mph in the morning. Little or no snow accumulation expected.

    High: 49 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 27. North wind 5 to 11 mph becoming west after midnight.

    Low: 27 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 58. West southwest wind 6 to 10 mph.

    High: 58 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 32. West wind 5 to 8 mph becoming light and variable after midnight.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 42. Southwest wind 6 to 8 mph.
Wednesday
Partly sunny, with a high near 70. West southwest wind 6 to 11 mph.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 38. Southwest wind 5 to 11 mph becoming northwest after midnight.
Thursday
Rain and snow showers likely before noon, then snow showers likely between noon and 3pm, then rain and snow showers likely after 3pm. Mostly cloudy, with a high near 49. Northwest wind 9 to 15 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday Night
A 40 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 26. North wind 5 to 11 mph. New snow accumulation of less than a half inch possible.
Friday
A 40 percent chance of snow showers, mainly after noon. Partly sunny, with a high near 49. Light west northwest wind becoming north northwest 6 to 11 mph in the morning. Little or no snow accumulation expected.
Friday Night
A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 27. North wind 5 to 11 mph becoming west after midnight.
Saturday
Mostly sunny, with a high near 58. West southwest wind 6 to 10 mph.
Saturday Night
Partly cloudy, with a low around 32. West wind 5 to 8 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 70. West southwest wind 3 to 8 mph.
Sunday Night
Partly cloudy, with a low around 38. South southeast wind 3 to 7 mph.
Monday
Mostly sunny, with a high near 78. Calm wind becoming south southwest 5 to 9 mph in the afternoon.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 44. South wind 6 to 9 mph becoming north after midnight.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 74. Northwest wind 6 to 13 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:
3:13 pm MDT Apr 14, 2026
Forecast Valid:
3pm MDT Apr 14, 2026-6pm MDT Apr 21, 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