Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Arrow Creek Hill I-90 MP 468.6 (MTARC)

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

unknown precip

59°F

15°C

Humidity 61%
Wind Speed W 28 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 27 Aug 05:15 PM MDT
Extended Forecast for

Pompeys Pillar MT

Severe T-storm Warning August 27, 05:44pm until August 27, 06:00pm
Click here for hazard details and duration
...
  •  
    Severe T-storm Warning August 27, 05:44pm until August 27, 06:00pm

    NOW until 6:00pm Thu

    Severe T-storm Warning

  • Tonight

    Low: 66 °F

    Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers between 4pm and 5pm.  Increasing clouds and hot, with a high near 91. Southwest wind around 6 mph becoming north in the morning.  Chance of precipitation is 20%.

    High: 91 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers before 9pm.  Mostly cloudy, with a low around 63. Southwest wind 3 to 5 mph.

    Low: 63 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 3pm.  Mostly cloudy, with a high near 85. West southwest wind 5 to 7 mph.  Chance of precipitation is 30%.

    High: 85 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers, mainly before midnight.  Partly cloudy, with a low around 57. North northwest wind around 6 mph becoming light and variable  in the evening.

    Low: 57 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after noon.  Partly sunny, with a high near 81. Light north northwest wind becoming west northwest 8 to 13 mph in the morning.  Chance of precipitation is 50%.

    High: 81 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51. West northwest wind 5 to 10 mph becoming light north northwest.

    Low: 51 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 85. West southwest wind 3 to 6 mph.

    High: 85 °F

    Sunny

Detailed Forecast

Tonight
A 40 percent chance of showers, mainly before 9pm. Mostly cloudy, with a low around 66. South southeast wind around 6 mph becoming west in the evening.
Friday
A slight chance of showers between 4pm and 5pm. Increasing clouds and hot, with a high near 91. Southwest wind around 6 mph becoming north in the morning. Chance of precipitation is 20%.
Friday Night
A 20 percent chance of showers before 9pm. Mostly cloudy, with a low around 63. Southwest wind 3 to 5 mph.
Saturday
A chance of showers, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 85. West southwest wind 5 to 7 mph. Chance of precipitation is 30%.
Saturday Night
A 30 percent chance of showers, mainly before midnight. Partly cloudy, with a low around 57. North northwest wind around 6 mph becoming light and variable in the evening.
Sunday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 81. Light north northwest wind becoming west northwest 8 to 13 mph in the morning. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 51. West northwest wind 5 to 10 mph becoming light north northwest.
Monday
Sunny, with a high near 85. West southwest wind 3 to 6 mph.
Monday Night
Mostly clear, with a low around 55. North northwest wind around 5 mph becoming calm after midnight.
Tuesday
Mostly sunny, with a high near 89. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 57. South southeast wind around 6 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 89. West wind 3 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 57. West northwest wind 3 to 7 mph.
Thursday
Mostly sunny, with a high near 85. Light west wind increasing to 5 to 9 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
Pompeys Pillar MT
 46°N 107.94°W (Elev. 2884 ft)
4:58 pm MDT Aug 27, 2026
5pm MDT Aug 27, 2026-6pm MDT Sep 3, 2026
 
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Additional Resources

Radar & Satellite Image

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