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

53°F

12°C

Humidity 20%
Wind Speed W 13 MPH
Barometer NA
Dewpoint 13°F (-11°C)
Visibility NA
Last update 14 Feb 02:00 PM MST
Extended Forecast for

8 Miles W Pompeys Pillar MT

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 56. West southwest wind 5 to 8 mph.

    High: 56 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 61. West southwest wind 3 to 7 mph.

    High: 61 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 30. North wind around 6 mph becoming calm in the evening.

    Low: 30 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Sunny, with a high near 62. Calm wind becoming south around 6 mph in the afternoon.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 33. South southeast wind around 6 mph becoming calm in the evening.

    Low: 33 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Rain showers likely before 2pm, then rain likely, possibly mixed with snow showers. Cloudy, with a high near 52. Light and variable wind becoming west northwest 9 to 14 mph in the morning. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 52 °F

    Showers
    Likely then
    Rain/Snow
    Likely

  • Tuesday Night

    Tuesday Night: A chance of rain and snow showers before 8pm, then a chance of snow showers between 8pm and 11pm. Mostly cloudy, with a low around 22. North wind 5 to 11 mph. Chance of precipitation is 30%.

    Low: 22 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of snow showers, mainly after 11am. Partly sunny, with a high near 39. Northeast wind 5 to 8 mph.

    High: 39 °F

    Chance Snow
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 56. West southwest wind 5 to 8 mph.
Tonight
Mostly cloudy, with a low around 33. Calm wind.
Sunday
Partly sunny, with a high near 61. West southwest wind 3 to 7 mph.
Sunday Night
A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 30. North wind around 6 mph becoming calm in the evening.
Washington's Birthday
Sunny, with a high near 62. Calm wind becoming south around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 33. South southeast wind around 6 mph becoming calm in the evening.
Tuesday
Rain showers likely before 2pm, then rain likely, possibly mixed with snow showers. Cloudy, with a high near 52. Light and variable wind becoming west northwest 9 to 14 mph in the morning. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tuesday Night
A chance of rain and snow showers before 8pm, then a chance of snow showers between 8pm and 11pm. Mostly cloudy, with a low around 22. North wind 5 to 11 mph. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of snow showers, mainly after 11am. Partly sunny, with a high near 39. Northeast wind 5 to 8 mph.
Wednesday Night
A 40 percent chance of snow showers. Mostly cloudy, with a low around 19. Northeast wind 5 to 9 mph.
Thursday
A 30 percent chance of snow showers. Partly sunny, with a high near 42. West northwest wind 5 to 8 mph.
Thursday Night
Mostly cloudy, with a low around 21. West southwest wind 5 to 7 mph.
Friday
A 20 percent chance of snow showers. Partly sunny, with a high near 42. North northwest wind 5 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles W Pompeys Pillar MT
 45.97°N 108.12°W (Elev. 2972 ft)
Last Update:
11:59 am MST Feb 14, 2026
Forecast Valid:
2pm MST Feb 14, 2026-6pm MST Feb 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation