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

36°F

2°C

Humidity 65%
Wind Speed SW 3 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Last update 14 Oct 07:15 AM MDT
Extended Forecast for

2 Miles ESE Pompeys Pillar MT

  • Today

    Today: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 61. Southwest wind around 6 mph.

    High: 61 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 37. West wind 6 to 10 mph.

    Low: 37 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 58. West wind 9 to 11 mph becoming north in the afternoon.

    High: 58 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 30. North northeast wind around 7 mph becoming south southeast after midnight.

    Low: 30 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 70. South wind 6 to 8 mph.

    High: 70 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43. Calm wind becoming west southwest around 5 mph after midnight.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 75. West southwest wind 6 to 10 mph.

    High: 75 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 45. West southwest wind 3 to 6 mph.

    Low: 45 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 67. Calm wind becoming east around 6 mph in the afternoon.

    High: 67 °F

    Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 61. Southwest wind around 6 mph.
Tonight
Partly cloudy, with a low around 37. West wind 6 to 10 mph.
Thursday
Sunny, with a high near 58. West wind 9 to 11 mph becoming north in the afternoon.
Thursday Night
Mostly clear, with a low around 30. North northeast wind around 7 mph becoming south southeast after midnight.
Friday
Sunny, with a high near 70. South wind 6 to 8 mph.
Friday Night
Mostly clear, with a low around 43. Calm wind becoming west southwest around 5 mph after midnight.
Saturday
Sunny, with a high near 75. West southwest wind 6 to 10 mph.
Saturday Night
Partly cloudy, with a low around 45. West southwest wind 3 to 6 mph.
Sunday
Sunny, with a high near 67. Calm wind becoming east around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 41. Light and variable wind.
Monday
Sunny, with a high near 71. Light southwest wind.
Monday Night
Partly cloudy, with a low around 44. Light and variable wind.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 65. Light and variable wind becoming north 5 to 7 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Pompeys Pillar MT
 45.98°N 107.91°W (Elev. 3100 ft)
Last Update:
12:32 am MDT Oct 14, 2026
Forecast Valid:
7am MDT Oct 14, 2026-6pm MDT Oct 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation