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.

unknown precip

28°F

-2°C

Humidity 82%
Wind Speed ENE 7 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Wind Chill21°F (-6°C)
Last update 12 Mar 11:15 PM MDT
Extended Forecast for

Pompeys Pillar MT

Winter Storm Warning March 12, 11:41pm until March 15, 06:00am
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning March 12, 11:41pm until March 15, 06:00am

    NOW until 6:00am Sun

    Winter Storm Warning

  • Tonight

    Low: 29 °F

    Snow

  • Friday

    Friday: Snow before 2pm, then snow, possibly mixed with rain between 2pm and 3pm, then snow likely after 3pm. High near 38. Calm wind becoming east northeast around 6 mph in the afternoon. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    High: 38 °F

    Snow then
    Rain/Snow

  • Friday Night

    Friday Night: Snow before midnight, then snow showers after midnight. Low around 27. East northeast wind 3 to 6 mph. Chance of precipitation is 90%. New snow accumulation of around 2 inches.

    Low: 27 °F

    Snow

  • Saturday

    Saturday: Snow showers. High near 39. Light east northeast wind becoming northeast 5 to 9 mph in the morning. Chance of precipitation is 100%. New snow accumulation of around 3 inches.

    High: 39 °F

    Snow Showers

  • Saturday Night

    Saturday Night: Snow showers, mainly before midnight. Low around 12. North wind 6 to 11 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    Low: 12 °F

    Snow Showers
    then Chance
    Snow Showers

  • Sunday

    Sunday: A 20 percent chance of snow showers before noon. Partly sunny, with a high near 30. Light and variable wind.

    High: 30 °F

    Slight Chance
    Snow Showers
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 12. Light south wind.

    Low: 12 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of snow showers before 3pm, then a slight chance of rain showers. Mostly cloudy, with a high near 44. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 20%.

    High: 44 °F

    Slight Chance
    Snow Showers
    then Slight
    Chance
    Rain/Snow

Detailed Forecast

Tonight
Snow. Low around 29. North wind around 6 mph becoming calm after midnight. Chance of precipitation is 90%. Total nighttime snow accumulation of around an inch possible.
Friday
Snow before 2pm, then snow, possibly mixed with rain between 2pm and 3pm, then snow likely after 3pm. High near 38. Calm wind becoming east northeast around 6 mph in the afternoon. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Friday Night
Snow before midnight, then snow showers after midnight. Low around 27. East northeast wind 3 to 6 mph. Chance of precipitation is 90%. New snow accumulation of around 2 inches.
Saturday
Snow showers. High near 39. Light east northeast wind becoming northeast 5 to 9 mph in the morning. Chance of precipitation is 100%. New snow accumulation of around 3 inches.
Saturday Night
Snow showers, mainly before midnight. Low around 12. North wind 6 to 11 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Sunday
A 20 percent chance of snow showers before noon. Partly sunny, with a high near 30. Light and variable wind.
Sunday Night
Mostly cloudy, with a low around 12. Light south wind.
Monday
A slight chance of snow showers before 3pm, then a slight chance of rain showers. Mostly cloudy, with a high near 44. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 20%.
Monday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 34. West southwest wind around 8 mph.
Tuesday
Partly sunny, with a high near 64. West wind 8 to 16 mph.
Tuesday Night
Mostly cloudy, with a low around 41. West wind 6 to 13 mph.
Wednesday
Partly sunny, with a high near 73. West southwest wind 6 to 14 mph.
Wednesday Night
Mostly cloudy, with a low around 44. West wind 5 to 9 mph.
Thursday
Partly sunny, with a high near 79. West southwest wind 5 to 11 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Pompeys Pillar MT
 46°N 107.94°W (Elev. 2884 ft)
Last Update:
11:08 pm MDT Mar 12, 2026
Forecast Valid:
11pm MDT Mar 12, 2026-6pm MDT Mar 19, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation