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

55°F

13°C

Humidity 24%
Wind Speed WSW 18 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Last update 07 Mar 01:00 PM MST
Extended Forecast for

2 Miles W Pompeys Pillar MT

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 61. West wind 22 to 24 mph.

    High: 61 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 41. West southwest wind 10 to 16 mph.

    Low: 41 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 70. West southwest wind 11 to 16 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 39 mph.

    High: 70 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A slight chance of rain showers before 11pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 32. West wind 15 to 20 mph becoming northeast 5 to 10 mph in the evening. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 32 °F

    Chance
    Rain/Snow

  • Monday

    Monday: Rain likely, possibly mixed with snow showers, mainly after 11am. Mostly cloudy, with a high near 48. Light east northeast wind becoming north northeast 5 to 10 mph in the afternoon. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 48 °F

    Rain/Snow
    Likely

  • Monday Night

    Monday Night: Rain likely, possibly mixed with snow showers, becoming all snow after 8pm. Cloudy, with a low around 29. North northeast wind 5 to 9 mph becoming calm in the evening. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Rain/Snow
    Likely then
    Chance Snow
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of snow showers. Mostly cloudy, with a high near 43. Light west wind becoming west northwest 5 to 10 mph in the afternoon. 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 11pm. Mostly cloudy, with a low around 21. Northwest wind 8 to 13 mph becoming light and variable.

    Low: 21 °F

    Chance Snow
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 49. West wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon.

    High: 49 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 61. West wind 22 to 24 mph.
Tonight
Partly cloudy, with a low around 41. West southwest wind 10 to 16 mph.
Sunday
Partly sunny, with a high near 70. West southwest wind 11 to 16 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 39 mph.
Sunday Night
A slight chance of rain showers before 11pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 32. West wind 15 to 20 mph becoming northeast 5 to 10 mph in the evening. Chance of precipitation is 30%. Little or no snow accumulation expected.
Monday
Rain likely, possibly mixed with snow showers, mainly after 11am. Mostly cloudy, with a high near 48. Light east northeast wind becoming north northeast 5 to 10 mph in the afternoon. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday Night
Rain likely, possibly mixed with snow showers, becoming all snow after 8pm. Cloudy, with a low around 29. North northeast wind 5 to 9 mph becoming calm in the evening. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Tuesday
A 40 percent chance of snow showers. Mostly cloudy, with a high near 43. Light west wind becoming west northwest 5 to 10 mph in the afternoon. New snow accumulation of less than a half inch possible.
Tuesday Night
A 30 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 21. Northwest wind 8 to 13 mph becoming light and variable.
Wednesday
Partly sunny, with a high near 49. West wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon.
Wednesday Night
A 10 percent chance of snow showers after 5am. Mostly cloudy, with a low around 33. Southwest wind 7 to 10 mph.
Thursday
A chance of rain and snow showers. Mostly cloudy, with a high near 60. West southwest wind 10 to 15 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 43 mph. Chance of precipitation is 40%.
Thursday Night
Rain and snow showers likely. Mostly cloudy, with a low around 28. North northwest wind 15 to 20 mph decreasing to 7 to 12 mph after midnight. Chance of precipitation is 70%.
Friday
Snow showers likely. Mostly cloudy, with a high near 45. Northwest wind 6 to 10 mph. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Pompeys Pillar MT
 46°N 108°W (Elev. 2844 ft)
Last Update:
1:03 pm MST Mar 7, 2026
Forecast Valid:
1pm MST Mar 7, 2026-6pm MDT Mar 13, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation