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.

unknown precip

45°F

7°C

Humidity 54%
Wind Speed W 13 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Wind Chill39°F (4°C)
Last update 13 Apr 10:30 AM MDT
Extended Forecast for

5 Miles W Pompeys Pillar MT

  • Today

    Today: A 50 percent chance of showers, mainly before 5pm. Mostly cloudy, with a high near 61. West wind 18 to 23 mph decreasing to 10 to 15 mph in the afternoon.

    High: 61 °F

    Chance
    Showers

  • Tonight

    Tonight: A 20 percent chance of showers before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 40. West southwest wind 7 to 10 mph.

    Low: 40 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 68. West southwest wind around 8 mph.

    High: 68 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 42. Southwest wind 3 to 6 mph.

    Low: 42 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 70. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 70 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 39. West southwest wind 6 to 10 mph becoming north northwest after midnight.

    Low: 39 °F

    Chance
    Showers

  • Thursday

    Thursday: Rain showers likely before 9am, then rain and snow showers. High near 48. North northwest wind 9 to 16 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 48 °F

    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of rain and snow showers before 9pm, then a chance of snow showers. Mostly cloudy, with a low around 26. North wind 9 to 18 mph. Chance of precipitation is 50%.

    Low: 26 °F

    Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Friday

    Friday: A 30 percent chance of snow showers. Partly sunny, with a high near 49. West northwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon.

    High: 49 °F

    Chance Snow
    Showers

Detailed Forecast

Today
A 50 percent chance of showers, mainly before 5pm. Mostly cloudy, with a high near 61. West wind 18 to 23 mph decreasing to 10 to 15 mph in the afternoon.
Tonight
A 20 percent chance of showers before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 40. West southwest wind 7 to 10 mph.
Tuesday
Mostly sunny, with a high near 68. West southwest wind around 8 mph.
Tuesday Night
Partly cloudy, with a low around 42. Southwest wind 3 to 6 mph.
Wednesday
Mostly cloudy, with a high near 70. Light southwest wind increasing to 5 to 10 mph in the morning.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 39. West southwest wind 6 to 10 mph becoming north northwest after midnight.
Thursday
Rain showers likely before 9am, then rain and snow showers. High near 48. North northwest wind 9 to 16 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
A chance of rain and snow showers before 9pm, then a chance of snow showers. Mostly cloudy, with a low around 26. North wind 9 to 18 mph. Chance of precipitation is 50%.
Friday
A 30 percent chance of snow showers. Partly sunny, with a high near 49. West northwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 27. North northwest wind 5 to 15 mph becoming west southwest after midnight.
Saturday
Mostly sunny, with a high near 60. West wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 34. Southwest wind 3 to 8 mph.
Sunday
Mostly sunny, with a high near 70. Light west southwest wind becoming southwest 5 to 9 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Pompeys Pillar MT
 45.97°N 108.06°W (Elev. 2986 ft)
Last Update:
10:33 am MDT Apr 13, 2026
Forecast Valid:
10am MDT Apr 13, 2026-6pm MDT Apr 19, 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