Current conditions at

Arrow Creek Hill I-90 MP 468.6 (MTARC)

Lat: 45.78°NLon: 108.16341°WElev: 3924.0ft.

unknown precip

5°F

-15°C

Humidity 57%
Wind Speed WSW 0 MPH
Barometer NA
Dewpoint -7°F (-22°C)
Visibility NA
Last update 23 Jan 04:00 PM MST
Extended Forecast for

5 Miles W Pompeys Pillar MT

  • Tonight

    Tonight: Partly cloudy, with a low around -6. Calm wind.

    Low: -6 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow after 11am.  Mostly cloudy, with a high near 25. Wind chill values as low as -10. Light and variable wind becoming west 5 to 8 mph in the morning.

    High: 25 °F

    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: A 50 percent chance of snow.  Cloudy, with a low around 0. North northeast wind around 6 mph.  New snow accumulation of less than a half inch possible.

    Low: 0 °F

    Chance Snow

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny and cold, with a high near 15. Wind chill values as low as -10. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 15 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a temperature falling to near 7 by 9pm, then rising to around 16 during the remainder of the night. West southwest wind 7 to 13 mph.

    Low: 7 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 41. West wind 14 to 17 mph.

    High: 41 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25. West wind 7 to 10 mph.

    Low: 25 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 45. West southwest wind 6 to 8 mph.

    High: 45 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 24. West southwest wind around 6 mph.

    Low: 24 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around -6. Calm wind.
Saturday
A 20 percent chance of snow after 11am. Mostly cloudy, with a high near 25. Wind chill values as low as -10. Light and variable wind becoming west 5 to 8 mph in the morning.
Saturday Night
A 50 percent chance of snow. Cloudy, with a low around 0. North northeast wind around 6 mph. New snow accumulation of less than a half inch possible.
Sunday
Mostly cloudy, then gradually becoming sunny and cold, with a high near 15. Wind chill values as low as -10. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a temperature falling to near 7 by 9pm, then rising to around 16 during the remainder of the night. West southwest wind 7 to 13 mph.
Monday
Sunny, with a high near 41. West wind 14 to 17 mph.
Monday Night
Mostly cloudy, with a low around 25. West wind 7 to 10 mph.
Tuesday
Partly sunny, with a high near 45. West southwest wind 6 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 24. West southwest wind around 6 mph.
Wednesday
Mostly sunny, with a high near 47. West southwest wind around 7 mph.
Wednesday Night
Mostly cloudy, with a low around 25. West southwest wind 3 to 6 mph.
Thursday
Mostly sunny, with a high near 45. West southwest wind 3 to 6 mph.
Thursday Night
Mostly cloudy, with a low around 24. North wind around 5 mph becoming light and variable in the evening.
Friday
Partly sunny, with a high near 46. West southwest wind 3 to 6 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Pompeys Pillar MT
 45.97°N 108.06°W (Elev. 2986 ft)
1:13 pm MST Jan 23, 2026
4pm MST Jan 23, 2026-6pm MST Jan 30, 2026
 
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Additional Resources

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Hourly Weather Forecast

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