Severe Thunderstorms in the Ohio Valley and Mid-Atlantic; Heat Continuing in the Central U.S.

Widespread strong to severe thunderstorms are expected from the Upper Ohio Valley into the Mid-Atlantic through Friday, with damaging winds as the primary threat. Dangerous heat will continue from the South-Central U.S. to the Midwest, Ohio/Tennessee valleys, and Mid-Atlantic. Widespread Major to Extreme Heat Risk is forecast into the weekend and will confine to the South-Central U.S. by Labor Day Read More >

Current conditions at

HARLEM (HRLM)

Lat: 48.54333°NLon: 108.83472°WElev: 2358.0ft.

NA

51°F

11°C

Humidity 76%
Wind Speed ENE 1 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 04 Sep 01:00 AM MDT
Extended Forecast for

Chinook MT

  • Overnight

    Overnight: Partly cloudy, with a low around 51. East wind 5 to 9 mph.

    Low: 51 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 84. East wind 10 to 16 mph becoming west in the afternoon. Winds could gust as high as 24 mph.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 50. West wind 6 to 15 mph, with gusts as high as 23 mph.

    Low: 50 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 82. North northwest wind 6 to 9 mph.

    High: 82 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms between midnight and 3am, then a chance of showers after 3am.  Partly cloudy, with a low around 53. North wind 5 to 10 mph.  Chance of precipitation is 40%.

    Low: 53 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms before noon, then a slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm.  Partly sunny, with a high near 78. Light and variable wind becoming east 6 to 11 mph in the morning. Winds could gust as high as 20 mph.  Chance of precipitation is 40%.

    High: 78 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm.  Low around 53. East wind 9 to 17 mph, with gusts as high as 24 mph.  Chance of precipitation is 90%.

    Low: 53 °F

    Showers

  • Labor Day

    Labor Day: Showers and possibly a thunderstorm.  Mostly cloudy, with a high near 70. Northeast wind 10 to 14 mph becoming west in the morning. Winds could gust as high as 23 mph.

    High: 70 °F

    Showers

  • Monday Night

    Monday Night: Showers likely, mainly before midnight.  Mostly cloudy, with a low around 48. Breezy.

    Low: 48 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

Overnight
Partly cloudy, with a low around 51. East wind 5 to 9 mph.
Friday
Mostly sunny, with a high near 84. East wind 10 to 16 mph becoming west in the afternoon. Winds could gust as high as 24 mph.
Friday Night
Mostly clear, with a low around 50. West wind 6 to 15 mph, with gusts as high as 23 mph.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 82. North northwest wind 6 to 9 mph.
Saturday Night
A chance of showers and thunderstorms between midnight and 3am, then a chance of showers after 3am. Partly cloudy, with a low around 53. North wind 5 to 10 mph. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms before noon, then a slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 78. Light and variable wind becoming east 6 to 11 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Sunday Night
Showers and possibly a thunderstorm. Low around 53. East wind 9 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.
Labor Day
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 70. Northeast wind 10 to 14 mph becoming west in the morning. Winds could gust as high as 23 mph.
Monday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 48. Breezy.
Tuesday
A chance of showers, mainly before noon. Partly sunny, with a high near 68. Breezy.
Tuesday Night
Partly cloudy, with a low around 46. Breezy.
Wednesday
Mostly sunny, with a high near 73.
Wednesday Night
Partly cloudy, with a low around 47.
Thursday
Mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
Chinook MT
 48.6°N 109.23°W (Elev. 2408 ft)
12:31 am MDT Sep 4, 2026
2am MDT Sep 4, 2026-6pm MDT Sep 10, 2026
 
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Additional Resources

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