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

33°F

1°C

Humidity 68%
Wind Speed NNE 10 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Wind Chill25°F (-4°C)
Last update 06 Apr 09:15 AM MDT
Extended Forecast for

5 Miles W Pompeys Pillar MT

  • Today

    Today: Mostly cloudy, with a high near 55. East northeast wind 9 to 11 mph.

    High: 55 °F

    Mostly Cloudy

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 34. East wind 5 to 9 mph becoming calm after midnight.

    Low: 34 °F

    Gradual
    Clearing

  • Tuesday

    Tuesday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 75. Light southwest wind becoming west southwest 12 to 17 mph in the morning. Chance of precipitation is 20%.

    High: 75 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Rain showers likely before midnight, then a chance of rain and snow showers. Mostly cloudy, with a low around 35. West wind 9 to 15 mph becoming north northwest in the evening. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 35 °F

    Showers
    Likely then
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 56. West wind 7 to 12 mph increasing to 16 to 21 mph in the afternoon.

    High: 56 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29. North wind 9 to 14 mph becoming light and variable after midnight.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 55. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 55 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 30. East northeast wind 5 to 7 mph becoming calm after midnight.

    Low: 30 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 67. Calm wind becoming east southeast around 6 mph in the afternoon.

    High: 67 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 55. East northeast wind 9 to 11 mph.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 34. East wind 5 to 9 mph becoming calm after midnight.
Tuesday
A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 75. Light southwest wind becoming west southwest 12 to 17 mph in the morning. Chance of precipitation is 20%.
Tuesday Night
Rain showers likely before midnight, then a chance of rain and snow showers. Mostly cloudy, with a low around 35. West wind 9 to 15 mph becoming north northwest in the evening. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday
Mostly sunny, with a high near 56. West wind 7 to 12 mph increasing to 16 to 21 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 29. North wind 9 to 14 mph becoming light and variable after midnight.
Thursday
Mostly sunny, with a high near 55. Calm wind becoming east northeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 30. East northeast wind 5 to 7 mph becoming calm after midnight.
Friday
Mostly sunny, with a high near 67. Calm wind becoming east southeast around 6 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 39. East southeast wind 5 to 7 mph becoming calm after midnight.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 77. Calm wind becoming west southwest around 6 mph in the afternoon.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 45. West wind 5 to 7 mph.
Sunday
A 50 percent chance of showers. Partly sunny, with a high near 68. Northwest wind 5 to 10 mph becoming north northeast in the afternoon.
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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:
12:33 am MDT Apr 6, 2026
Forecast Valid:
9am MDT Apr 6, 2026-6pm MDT Apr 12, 2026
 
Forecast Discussion
 
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Additional Resources

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