Strong to Severe Thunderstorms in the East; Heat in the Central and Western U.S.

Strong to potentially severe thunderstorms with damaging wind gusts are forecast Thursday from parts of New England into the Mid Atlantic and Carolinas. Significant heat will expand across the West and Central Plains through Friday, potentially breaking daily high temperature records. Dangerous heat will then build into the Eastern U.S. this weekend through much of next week. Read More >

Hazardous Weather Conditions

Current conditions at

Grand Marais/Cook County Airport (KCKC)

Lat: 47.84°NLon: 90.39°WElev: 1784ft.

Partly Cloudy

57°F

14°C

Humidity 82%
Wind Speed N 6 mph
Barometer 29.82 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 18 Jun 11:35 pm CDT
Extended Forecast for

5 Miles ENE Grand Portage MN

  • Tonight

    Tonight: A 10 percent chance of showers after 5am.  Mostly cloudy, with a low around 49. Calm wind becoming north around 5 mph after midnight.

    Low: 49 °F

    Slight Chance
    Showers

  • Juneteenth

    Juneteenth: A 50 percent chance of showers, mainly after 7am.  Mostly cloudy, with a high near 63. North wind around 5 mph becoming south in the afternoon.

    High: 63 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers.  Mostly cloudy, with a low around 45. Southeast wind around 5 mph becoming calm.

    Low: 45 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 4pm. Some of the storms could be severe.  Partly sunny, with a high near 64. Calm wind becoming east around 5 mph in the morning.  Chance of precipitation is 50%.

    High: 64 °F

    Chance
    Showers then
    Severe
    Thunderstorms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 7pm, then a chance of showers between 7pm and 1am, then showers and possibly a thunderstorm after 1am. Some of the storms could be severe.  Low around 47. Northeast wind around 5 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Severe
    Thunderstorms

  • Saturday

    Saturday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm.  Partly sunny, with a high near 71. East wind 5 to 10 mph, with gusts as high as 15 mph.  Chance of precipitation is 40%.

    High: 71 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 51. Northeast wind around 5 mph, with gusts as high as 15 mph.

    Low: 51 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 1pm.  Partly sunny, with a high near 75. Northeast wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.

    High: 75 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 54. East wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 54 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Tonight
A 10 percent chance of showers after 5am. Mostly cloudy, with a low around 49. Calm wind becoming north around 5 mph after midnight.
Juneteenth
A 50 percent chance of showers, mainly after 7am. Mostly cloudy, with a high near 63. North wind around 5 mph becoming south in the afternoon.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 45. Southeast wind around 5 mph becoming calm.
Friday
A chance of showers, with thunderstorms also possible after 4pm. Some of the storms could be severe. Partly sunny, with a high near 64. Calm wind becoming east around 5 mph in the morning. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms before 7pm, then a chance of showers between 7pm and 1am, then showers and possibly a thunderstorm after 1am. Some of the storms could be severe. Low around 47. Northeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 71. East wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 51. Northeast wind around 5 mph, with gusts as high as 15 mph.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 75. Northeast wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 54. East wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.
Monday
A chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 73. West wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 51. West wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday
Mostly sunny, with a high near 67. North wind around 5 mph becoming south in the afternoon.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 47. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
A slight chance of showers. Partly sunny, with a high near 63. East wind 5 to 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ENE Grand Portage MN
 48°N 89.6°W
10:26 pm CDT Jun 18, 2025
11pm CDT Jun 18, 2025-6pm CDT Jun 25, 2025
 
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