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

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Current conditions at

Arrow Creek Hill I-90 MP 468.6 (MTARC)

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

NA

70°F

21°C

Humidity 31%
Wind Speed NNE 5 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 20 Jun 04:00 PM MDT
Extended Forecast for

2 Miles W Pompeys Pillar MT

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Cloudy, with a high near 80. East northeast wind around 7 mph.

    High: 80 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. West wind 5 to 8 mph. Chance of precipitation is 50%.

    Low: 59 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before 8am. Cloudy through mid morning, then gradual clearing, with a high near 80. West wind 5 to 10 mph becoming north northeast in the afternoon.

    High: 80 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms after 9pm. Mostly cloudy, with a low around 55. North northeast wind 6 to 8 mph.

    Low: 55 °F

    Chance
    Showers

  • Monday

    Monday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 71. North northeast wind 8 to 13 mph. Chance of precipitation is 70%.

    High: 71 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 49. North wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 20%.

    Low: 49 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 76. Calm wind becoming north around 6 mph in the afternoon.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 50. Northeast wind 5 to 8 mph becoming calm after midnight.

    Low: 50 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81. Calm wind becoming east 5 to 8 mph in the afternoon.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Cloudy, with a high near 80. East northeast wind around 7 mph.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. West wind 5 to 8 mph. Chance of precipitation is 50%.
Sunday
A 20 percent chance of showers before 8am. Cloudy through mid morning, then gradual clearing, with a high near 80. West wind 5 to 10 mph becoming north northeast in the afternoon.
Sunday Night
A 50 percent chance of showers and thunderstorms after 9pm. Mostly cloudy, with a low around 55. North northeast wind 6 to 8 mph.
Monday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 71. North northeast wind 8 to 13 mph. Chance of precipitation is 70%.
Monday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 49. North wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 76. Calm wind becoming north around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 50. Northeast wind 5 to 8 mph becoming calm after midnight.
Wednesday
Mostly sunny, with a high near 81. Calm wind becoming east 5 to 8 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 54. East wind 5 to 10 mph becoming light east northeast after midnight.
Thursday
Mostly sunny, with a high near 86. Calm wind becoming east around 6 mph in the afternoon.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 58. East wind around 6 mph becoming calm after midnight.
Friday
Mostly sunny and hot, with a high near 92. Calm wind becoming east northeast around 6 mph in the afternoon.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60. East wind 5 to 8 mph.
Saturday
A chance of showers. Partly sunny, with a high near 86. Light north northwest wind becoming northwest 5 to 10 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Pompeys Pillar MT
 46°N 108°W (Elev. 2844 ft)
Last Update:
1:27 pm MDT Jun 20, 2026
Forecast Valid:
4pm MDT Jun 20, 2026-6pm MDT Jun 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation