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

32°F

0°C

Humidity 42%
Wind Speed SE 5 MPH
Barometer NA
Dewpoint 11°F (-12°C)
Visibility NA
Wind Chill27°F (-3°C)
Last update 22 Feb 05:45 PM MST
Extended Forecast for

4 Miles W Pompeys Pillar MT

  • Tonight

    Tonight: Mostly clear, with a low around 16. Calm wind becoming southwest 5 to 9 mph in the evening.

    Low: 16 °F

    Mostly Clear

  • Monday

    Monday: Mostly cloudy, with a high near 57. West southwest wind 10 to 13 mph.

    High: 57 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A chance of rain before 2am, then a chance of rain and snow. Mostly cloudy, with a low around 35. West wind 9 to 11 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 35 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Tuesday

    Tuesday: Rain likely, possibly mixed with snow before 2pm, then a chance of rain. Mostly cloudy, with a high near 50. West wind around 9 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 50 °F

    Rain/Snow
    Likely

  • Tuesday Night

    Tuesday Night: Rain showers likely before 5am, then rain likely, possibly mixed with snow showers. Mostly cloudy, with a low around 33. Light and variable wind becoming west southwest 5 to 7 mph after midnight. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 33 °F

    Showers
    Likely then
    Rain/Snow
    Likely

  • Wednesday

    Wednesday: A chance of rain and snow showers, mainly before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 52. West wind 9 to 14 mph increasing to 19 to 24 mph in the afternoon. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 52 °F

    Chance
    Rain/Snow
    then Slight
    Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 30. West wind 14 to 20 mph.

    Low: 30 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 59. West wind 13 to 18 mph increasing to 20 to 25 mph in the afternoon.

    High: 59 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 31. West wind 14 to 18 mph.

    Low: 31 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 16. Calm wind becoming southwest 5 to 9 mph in the evening.
Monday
Mostly cloudy, with a high near 57. West southwest wind 10 to 13 mph.
Monday Night
A chance of rain before 2am, then a chance of rain and snow. Mostly cloudy, with a low around 35. West wind 9 to 11 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Tuesday
Rain likely, possibly mixed with snow before 2pm, then a chance of rain. Mostly cloudy, with a high near 50. West wind around 9 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tuesday Night
Rain showers likely before 5am, then rain likely, possibly mixed with snow showers. Mostly cloudy, with a low around 33. Light and variable wind becoming west southwest 5 to 7 mph after midnight. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday
A chance of rain and snow showers, mainly before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 52. West wind 9 to 14 mph increasing to 19 to 24 mph in the afternoon. Chance of precipitation is 50%. Little or no snow accumulation expected.
Wednesday Night
Mostly clear, with a low around 30. West wind 14 to 20 mph.
Thursday
Mostly sunny, with a high near 59. West wind 13 to 18 mph increasing to 20 to 25 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 31. West wind 14 to 18 mph.
Friday
A 30 percent chance of snow showers, mainly after 11am. Partly sunny, with a high near 52. West wind 13 to 21 mph.
Friday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 16. North wind 13 to 18 mph decreasing to 6 to 11 mph after midnight.
Saturday
A 20 percent chance of snow showers. Partly sunny, with a high near 36. East northeast wind 5 to 7 mph.
Saturday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 15. East northeast wind 5 to 7 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 42. Calm wind becoming northwest 5 to 7 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Pompeys Pillar MT
 45.97°N 108.03°W (Elev. 2982 ft)
Last Update:
6:08 pm MST Feb 22, 2026
Forecast Valid:
6pm MST Feb 22, 2026-6pm MST Mar 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation