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

26°F

-3°C

Humidity 79%
Wind Speed NE 9 MPH
Barometer NA
Dewpoint 20°F (-7°C)
Visibility NA
Wind Chill17°F (-8°C)
Last update 09 Mar 09:15 AM MDT
Extended Forecast for

5 Miles W Pompeys Pillar MT

  • Today

    Today: A chance of snow after 10am, mixing with rain after noon. Mostly cloudy, with a high near 46. East wind 8 to 11 mph becoming north northwest in the afternoon. Chance of precipitation is 40%. Total daytime snow accumulation of less than a half inch possible.

    High: 46 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Tonight

    Tonight: A chance of snow between 4am and 5am, then a slight chance of snow showers after 5am. Cloudy, with a low around 28. North northwest wind 6 to 11 mph becoming light and variable after midnight. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Chance Snow

  • Tuesday

    Tuesday: A 50 percent chance of snow showers. Mostly cloudy, with a high near 43. Light and variable wind becoming west 6 to 11 mph in the morning. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Chance Snow
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow showers before midnight. Partly cloudy, with a low around 22. Northwest wind 5 to 13 mph. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Chance Snow
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 51. West southwest wind 6 to 14 mph.

    High: 51 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 37. Southwest wind around 10 mph.

    Low: 37 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 62. West southwest wind 11 to 21 mph increasing to 27 to 37 mph. Winds could gust as high as 50 mph.

    High: 62 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Rain showers before 9pm, then rain and snow showers. Low around 31. Northwest wind 19 to 24 mph becoming east 7 to 12 mph after midnight. Chance of precipitation is 80%.

    Low: 31 °F

    Rain/Snow

  • Friday

    Friday: Rain and snow showers likely, becoming all rain after noon. Cloudy, with a high near 45. East wind 5 to 14 mph. Chance of precipitation is 70%.

    High: 45 °F

    Rain/Snow
    Likely then
    Showers
    Likely

Detailed Forecast

Today
A chance of snow after 10am, mixing with rain after noon. Mostly cloudy, with a high near 46. East wind 8 to 11 mph becoming north northwest in the afternoon. Chance of precipitation is 40%. Total daytime snow accumulation of less than a half inch possible.
Tonight
A chance of snow between 4am and 5am, then a slight chance of snow showers after 5am. Cloudy, with a low around 28. North northwest wind 6 to 11 mph becoming light and variable after midnight. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Tuesday
A 50 percent chance of snow showers. Mostly cloudy, with a high near 43. Light and variable wind becoming west 6 to 11 mph in the morning. New snow accumulation of less than a half inch possible.
Tuesday Night
A 30 percent chance of snow showers before midnight. Partly cloudy, with a low around 22. Northwest wind 5 to 13 mph. New snow accumulation of less than a half inch possible.
Wednesday
Mostly sunny, with a high near 51. West southwest wind 6 to 14 mph.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 37. Southwest wind around 10 mph.
Thursday
A 40 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 62. West southwest wind 11 to 21 mph increasing to 27 to 37 mph. Winds could gust as high as 50 mph.
Thursday Night
Rain showers before 9pm, then rain and snow showers. Low around 31. Northwest wind 19 to 24 mph becoming east 7 to 12 mph after midnight. Chance of precipitation is 80%.
Friday
Rain and snow showers likely, becoming all rain after noon. Cloudy, with a high near 45. East wind 5 to 14 mph. Chance of precipitation is 70%.
Friday Night
Rain and snow showers likely. Cloudy, with a low around 30. Northeast wind 8 to 11 mph. Chance of precipitation is 60%.
Saturday
Rain and snow showers. High near 46. North northeast wind 8 to 16 mph. Chance of precipitation is 80%.
Saturday Night
Snow showers. Low around 19. North wind 9 to 15 mph. Chance of precipitation is 80%.
Sunday
A 40 percent chance of snow showers. Cloudy, with a high near 35. North northeast wind around 7 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:
8:58 am MDT Mar 9, 2026
Forecast Valid:
9am MDT Mar 9, 2026-6pm MDT Mar 15, 2026
 
Forecast Discussion
 
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Additional Resources

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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