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

49°F

9°C

Humidity 17%
Wind Speed SW 10 MPH
Barometer NA
Dewpoint 6°F (-14°C)
Visibility NA
Wind Chill45°F (7°C)
Last update 23 Feb 07:30 PM MST
Extended Forecast for

5 Miles W Pompeys Pillar MT

  • Tonight

    Tonight: A chance of rain after 3am, mixing with snow after 5am. Mostly cloudy, with a low around 33. West southwest wind 6 to 11 mph becoming north after midnight. Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 33 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Tuesday

    Tuesday: Rain and snow, mainly before noon. High near 38. West southwest wind around 6 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: A chance of rain before 8pm, then a chance of rain and snow between 8pm and 11pm, then rain likely after 11pm. Mostly cloudy, with a low around 31. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 31 °F

    Rain/Snow
    Likely then
    Rain Likely

  • Wednesday

    Wednesday: A chance of rain, mixing with snow after 8am, then gradually ending. Mostly cloudy, then gradually becoming sunny, with a high near 51. West wind 8 to 13 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 51 °F

    Chance
    Rain/Snow
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 33. West wind 10 to 20 mph.

    Low: 33 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 59. West wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon.

    High: 59 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 10 percent chance of showers after 5am. Partly cloudy, with a low around 35. West wind 11 to 16 mph.

    Low: 35 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A slight chance of rain and snow showers before 11am, then a slight chance of rain showers between 11am and 2pm, then a slight chance of snow showers after 2pm. Partly sunny, with a high near 54. West wind 10 to 20 mph becoming north northwest in the afternoon. Chance of precipitation is 20%.

    High: 54 °F

    Slight Chance
    Rain/Snow

  • Friday Night

    Friday Night: Snow showers likely, mainly after 11pm. Mostly cloudy, with a low around 17. Northeast wind 8 to 15 mph. Chance of precipitation is 60%.

    Low: 17 °F

    Snow Showers
    Likely

Detailed Forecast

Tonight
A chance of rain after 3am, mixing with snow after 5am. Mostly cloudy, with a low around 33. West southwest wind 6 to 11 mph becoming north after midnight. Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.
Tuesday
Rain and snow, mainly before noon. High near 38. West southwest wind around 6 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Tuesday Night
A chance of rain before 8pm, then a chance of rain and snow between 8pm and 11pm, then rain likely after 11pm. Mostly cloudy, with a low around 31. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. Little or no snow accumulation expected.
Wednesday
A chance of rain, mixing with snow after 8am, then gradually ending. Mostly cloudy, then gradually becoming sunny, with a high near 51. West wind 8 to 13 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Wednesday Night
Mostly clear, with a low around 33. West wind 10 to 20 mph.
Thursday
Mostly sunny, with a high near 59. West wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon.
Thursday Night
A 10 percent chance of showers after 5am. Partly cloudy, with a low around 35. West wind 11 to 16 mph.
Friday
A slight chance of rain and snow showers before 11am, then a slight chance of rain showers between 11am and 2pm, then a slight chance of snow showers after 2pm. Partly sunny, with a high near 54. West wind 10 to 20 mph becoming north northwest in the afternoon. Chance of precipitation is 20%.
Friday Night
Snow showers likely, mainly after 11pm. Mostly cloudy, with a low around 17. Northeast wind 8 to 15 mph. Chance of precipitation is 60%.
Saturday
A 40 percent chance of snow showers, mainly before 11am. Mostly cloudy, with a high near 32. East northeast wind around 8 mph.
Saturday Night
A 30 percent chance of snow showers. Mostly cloudy, with a low around 15. East northeast wind 5 to 8 mph becoming calm after midnight.
Sunday
A 20 percent chance of snow showers. Mostly sunny, with a high near 41. Calm wind becoming north northwest around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 21. East northeast wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 52. West northwest wind 3 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Pompeys Pillar MT
 45.97°N 108.06°W (Elev. 2986 ft)
Last Update:
5:59 pm MST Feb 23, 2026
Forecast Valid:
7pm MST Feb 23, 2026-6pm MST Mar 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation