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

Heavy Rain in the Ohio and Tennessee Valleys; Watching for Tropical Cyclone Development in the Atlantic

Heavy to excessive rainfall may bring areas of flash and urban flooding over portions of the Ohio and Tennessee Valleys. Two tropical waves in the Atlantic are being monitored for tropical cyclone formation within the next few days. One tropical wave will bring periods of heavy rain, thunderstorms, flood risk, and landslides to Puerto Rico and the US Virgin Islands through Friday morning. Read More >

Hazardous Weather Conditions

Current conditions at

Grand Marais/Cook County Airport (KCKC)

Lat: 47.84°NLon: 90.39°WElev: 1784ft.

Partly Cloudy

63°F

17°C

Humidity 77%
Wind Speed S 5 mph
Barometer 30.10 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 24 Sep 5:15 pm CDT
Extended Forecast for

24 Miles NW Grand Marais/Cook County Airport MN

  • Tonight

    Tonight: Patchy fog between 8pm and 2am. Otherwise, mostly clear, with a low around 49. Calm wind becoming southwest around 5 mph.

    Low: 49 °F

    Patchy Fog

  • Thursday

    Thursday: Sunny, with a high near 77. Southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 42. Northwest wind around 5 mph becoming northeast after midnight. Winds could gust as high as 15 mph.

    Low: 42 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 7am. Otherwise, sunny, with a high near 66. Calm wind becoming south around 5 mph in the afternoon.

    High: 66 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 47. Southeast wind around 5 mph, with gusts as high as 15 mph.

    Low: 47 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 72. West wind around 5 mph, with gusts as high as 15 mph.

    High: 72 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 75. Calm wind becoming west around 5 mph.

    High: 75 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog between 8pm and 2am. Otherwise, mostly clear, with a low around 49. Calm wind becoming southwest around 5 mph.
Thursday
Sunny, with a high near 77. Southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 42. Northwest wind around 5 mph becoming northeast after midnight. Winds could gust as high as 15 mph.
Friday
Patchy fog before 7am. Otherwise, sunny, with a high near 66. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 47. Southeast wind around 5 mph, with gusts as high as 15 mph.
Saturday
Sunny, with a high near 72. West wind around 5 mph, with gusts as high as 15 mph.
Saturday Night
Mostly clear, with a low around 48. Calm wind.
Sunday
Sunny, with a high near 75. Calm wind becoming west around 5 mph.
Sunday Night
Mostly clear, with a low around 51. Calm wind.
Monday
Mostly sunny, with a high near 74. Calm wind becoming southeast around 5 mph.
Monday Night
Partly cloudy, with a low around 52. Calm wind.
Tuesday
Partly sunny, with a high near 71. Calm wind becoming southeast around 5 mph in the morning. Winds could gust as high as 15 mph.
Tuesday Night
Mostly cloudy, with a low around 53. Southeast wind around 5 mph, with gusts as high as 15 mph.
Wednesday
Partly sunny, with a high near 69. South wind around 5 mph, with gusts as high as 20 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
24 Miles NW Grand Marais/Cook County Airport MN
 48.09°N 90.75°W
Last Update:
4:26 pm CDT Sep 24, 2025
Forecast Valid:
5pm CDT Sep 24, 2025-6pm CDT Oct 1, 2025
 
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Additional Resources

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