Thunderstorms and Heavy Rains Across Portions of the Central and Eastern US; Heat Expands to Portions of the East

Widespread showers and thunderstorms, some severe, may produce heavy downpours and flash flooding across much of the eastern and central U.S. Dangerous heat will continue in the Pacific Northwest and expand across portions of the East. Deep tropical moisture and associated thunderstorms will bring heavy rainfall and localized flash flooding across portions of Florida into the central Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Grand Marais/Cook County Airport (KCKC)

Lat: 47.84°NLon: 90.39°WElev: 1784ft.

Overcast

55°F

13°C

Humidity 100%
Wind Speed NE 6 mph
Barometer 29.99 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Wind Chill54°F (12°C)
Last update 16 Jul 1:15 am CDT
Extended Forecast for

5 Miles WNW Grand Portage MN

  • Overnight

    Overnight: A 40 percent chance of showers, mainly before 5am.  Cloudy, with a low around 50. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 50 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly before 9am.  Mostly cloudy, with a high near 65. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 65 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers.  Mostly cloudy, with a low around 49. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 49 °F

    Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 73. Northwest wind around 5 mph becoming southwest in the afternoon.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 50. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 50 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers after 1pm.  Partly sunny, with a high near 73. Light west wind becoming southwest 5 to 10 mph in the morning.

    High: 73 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, with thunderstorms also possible after 1am.  Mostly cloudy, with a low around 53. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 53 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, mainly before 1pm.  Partly sunny, with a high near 72. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 72 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 52. Southwest wind around 5 mph becoming calm.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 40 percent chance of showers, mainly before 5am. Cloudy, with a low around 50. North wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
A 30 percent chance of showers, mainly before 9am. Mostly cloudy, with a high near 65. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 49. Northeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 73. Northwest wind around 5 mph becoming southwest in the afternoon.
Thursday Night
Mostly clear, with a low around 50. Southwest wind around 5 mph becoming calm in the evening.
Friday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 73. Light west wind becoming southwest 5 to 10 mph in the morning.
Friday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 53. Southwest wind around 5 mph becoming calm in the evening.
Saturday
A chance of showers, mainly before 1pm. Partly sunny, with a high near 72. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 52. Southwest wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 76. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 53. South wind around 5 mph becoming calm.
Monday
A slight chance of showers. Mostly sunny, with a high near 73. Calm wind becoming southeast around 5 mph in the morning.
Monday Night
A chance of showers. Mostly cloudy, with a low around 53. East wind around 5 mph becoming calm in the evening.
Tuesday
A chance of showers. Partly sunny, with a high near 76. South wind 5 to 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WNW Grand Portage MN
 48°N 89.79°W
12:40 am CDT Jul 16, 2025
1am CDT Jul 16, 2025-6pm CDT Jul 22, 2025
 
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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