National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Arrow Creek Hill I-90 MP 468.6 (MTARC)

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

NA

57°F

14°C

Humidity 32%
Wind Speed SW 5 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Last update 24 May 01:30 AM MDT
Extended Forecast for

5 Miles W Pompeys Pillar MT

  • Overnight

    Overnight: Mostly clear, with a low around 49. West southwest wind 3 to 6 mph.

    Low: 49 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 88. West southwest wind 6 to 10 mph.

    High: 88 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 50. West wind 5 to 7 mph becoming calm in the evening.

    Low: 50 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Sunny and hot, with a high near 91. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 91 °F

    Hot

  • Monday Night

    Monday Night: Partly cloudy, with a low around 58. South southeast wind 5 to 8 mph becoming calm after midnight.

    Low: 58 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny and hot, with a high near 95. Light and variable wind becoming southeast 6 to 11 mph in the afternoon.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 60. Southeast wind 5 to 10 mph becoming light after midnight. Chance of precipitation is 20%.

    Low: 60 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86. Calm wind becoming east southeast 5 to 7 mph in the afternoon.

    High: 86 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 57. Southeast wind 5 to 9 mph becoming light and variable after midnight.

    Low: 57 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 49. West southwest wind 3 to 6 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 88. West southwest wind 6 to 10 mph.
Sunday Night
Mostly clear, with a low around 50. West wind 5 to 7 mph becoming calm in the evening.
Memorial Day
Sunny and hot, with a high near 91. Calm wind becoming southeast around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 58. South southeast wind 5 to 8 mph becoming calm after midnight.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny and hot, with a high near 95. Light and variable wind becoming southeast 6 to 11 mph in the afternoon.
Tuesday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 60. Southeast wind 5 to 10 mph becoming light after midnight. Chance of precipitation is 20%.
Wednesday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86. Calm wind becoming east southeast 5 to 7 mph in the afternoon.
Wednesday Night
A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 57. Southeast wind 5 to 9 mph becoming light and variable after midnight.
Thursday
Mostly sunny, with a high near 85. Calm wind becoming east 5 to 9 mph in the afternoon.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 58. East southeast wind 5 to 9 mph becoming light east after midnight.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. Calm wind becoming southeast 5 to 9 mph in the afternoon.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Southeast wind 6 to 11 mph becoming west northwest after midnight.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. West wind 5 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Pompeys Pillar MT
 45.97°N 108.06°W (Elev. 2986 ft)
Last Update:
12:32 am MDT May 24, 2026
Forecast Valid:
1am MDT May 24, 2026-6pm MDT May 30, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation