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

39°F

4°C

Humidity 35%
Wind Speed WNW 7 MPH
Barometer NA
Dewpoint 13°F (-11°C)
Visibility NA
Wind Chill34°F (1°C)
Last update 03 Feb 04:00 AM MST
Extended Forecast for

5 Miles SW Pompeys Pillar MT

  • Overnight

    Overnight: A 30 percent chance of rain, mainly before 5am. Cloudy, with a steady temperature around 39. West wind around 10 mph.

    Low: 39 °F

    Chance Rain

  • Tuesday

    Tuesday: A 20 percent chance of rain before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 55. West wind 13 to 20 mph becoming north northwest in the afternoon.

    High: 55 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 28. North northwest wind 5 to 7 mph becoming light and variable.

    Low: 28 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60. Southwest wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon.

    High: 60 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 40. West southwest wind 8 to 13 mph.

    Low: 40 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 67. West southwest wind 8 to 10 mph.

    High: 67 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 32. West wind around 6 mph becoming calm in the evening.

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 62. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 33. West wind around 6 mph.

    Low: 33 °F

    Mostly Clear

Detailed Forecast

Overnight
A 30 percent chance of rain, mainly before 5am. Cloudy, with a steady temperature around 39. West wind around 10 mph.
Tuesday
A 20 percent chance of rain before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 55. West wind 13 to 20 mph becoming north northwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 28. North northwest wind 5 to 7 mph becoming light and variable.
Wednesday
Mostly sunny, with a high near 60. Southwest wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 40. West southwest wind 8 to 13 mph.
Thursday
Sunny, with a high near 67. West southwest wind 8 to 10 mph.
Thursday Night
Mostly clear, with a low around 32. West wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 62. Calm wind becoming west southwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 33. West wind around 6 mph.
Saturday
Mostly sunny, with a high near 59. West southwest wind around 7 mph.
Saturday Night
Partly cloudy, with a low around 35. West southwest wind around 6 mph.
Sunday
Mostly sunny, with a high near 62. West southwest wind 6 to 9 mph.
Sunday Night
Mostly cloudy, with a low around 38. West wind 5 to 7 mph.
Monday
A 30 percent chance of rain. Mostly cloudy, with a high near 54. Northwest wind 5 to 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Pompeys Pillar MT
 45.95°N 108.03°W (Elev. 3081 ft)
Last Update:
4:11 am MST Feb 3, 2026
Forecast Valid:
4am MST Feb 3, 2026-6pm MST Feb 9, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation