Current conditions at

Arrow Creek Hill I-90 MP 468.6 (MTARC)

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

NA

49°F

9°C

Humidity 31%
Wind Speed E 0 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Last update 16 May 07:00 AM MDT
Extended Forecast for

4 Miles W Pompeys Pillar MT

  • Today

    Today: A 20 percent chance of showers after 3pm.  Mostly sunny, then becoming cloudy during the afternoon, with a high near 73. East wind 5 to 7 mph becoming west in the afternoon.

    High: 73 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: Showers likely, mainly between 1am and 5am.  Cloudy, with a low around 41. West northwest wind 10 to 15 mph increasing to 16 to 21 mph after midnight.  Chance of precipitation is 60%.

    Low: 41 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: A 20 percent chance of showers before 9am.  Cloudy, then gradually becoming mostly sunny, with a high near 57. West wind 14 to 18 mph.

    High: 57 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of rain showers after midnight, mixing with snow after 3am.  Mostly cloudy, with a low around 36. North wind 10 to 17 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 36 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Monday

    Monday: A chance of rain and snow showers before noon, then a chance of rain showers.  Cloudy, with a high near 49. North wind 9 to 13 mph.  Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 49 °F

    Chance
    Rain/Snow
    then Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers before midnight.  Mostly cloudy, with a low around 34. North wind 5 to 9 mph becoming calm  in the evening.

    Low: 34 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 63. Light and variable wind.

    High: 63 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39. Southeast wind around 5 mph becoming calm  after midnight.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 69. Light and variable wind becoming west northwest 5 to 10 mph in the morning.

    High: 69 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers after 3pm. Mostly sunny, then becoming cloudy during the afternoon, with a high near 73. East wind 5 to 7 mph becoming west in the afternoon.
Tonight
Showers likely, mainly between 1am and 5am. Cloudy, with a low around 41. West northwest wind 10 to 15 mph increasing to 16 to 21 mph after midnight. Chance of precipitation is 60%.
Sunday
A 20 percent chance of showers before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 57. West wind 14 to 18 mph.
Sunday Night
A chance of rain showers after midnight, mixing with snow after 3am. Mostly cloudy, with a low around 36. North wind 10 to 17 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Monday
A chance of rain and snow showers before noon, then a chance of rain showers. Cloudy, with a high near 49. North wind 9 to 13 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Monday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 34. North wind 5 to 9 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 63. Light and variable wind.
Tuesday Night
Mostly cloudy, with a low around 39. Southeast wind around 5 mph becoming calm after midnight.
Wednesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 69. Light and variable wind becoming west northwest 5 to 10 mph in the morning.
Wednesday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 42. North northwest wind 5 to 8 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 73. Calm wind becoming west 5 to 7 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 46. North wind around 6 mph becoming light and variable after midnight.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79. Calm wind becoming north northwest 5 to 9 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Pompeys Pillar MT
 45.97°N 108.03°W (Elev. 2982 ft)
6:03 am MDT May 16, 2026
7am MDT May 16, 2026-6pm MDT May 22, 2026
 
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Additional Resources

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