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

Severe Storms and Heavy Rain the Mississippi Valley and Midwest; Widespread Heat in the Central US

Severe thunderstorms and showers have the potential for large hail, a few strong tornadoes, damaging winds with gusts over 75 mph, and localized flash flooding across parts of the Mid/Upper Mississippi Valley and Midwest. A widespread heat wave will continue across the Central U.S. and Midwest today. Fire weather concerns persist in the Southwest into the central Rockies and northern California. Read More >

Hazardous Weather Conditions

Current conditions at

Grand Marais, The Bay of Grand Marais (KGNA)

Lat: 47.75°NLon: 90.34°WElev: 610ft.

47°F

8°C

Humidity 97%
Wind Speed E 10 mph
Barometer 29.52 in (999.9 mb)
Dewpoint 46°F (8°C)
Visibility NA
Wind Chill42°F (6°C)
Last update 10 Jun 5:56 pm CDT
Extended Forecast for

Grand Marais MN

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before midnight. Some of the storms could be severe and produce heavy rainfall. Patchy dense fog after 9pm. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 51. East wind around 5 mph becoming calm. Winds could gust as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 51 °F

    Severe
    Thunderstorms
    and Patchy
    Dense Fog

  • Thursday

    Thursday: A 10 percent chance of showers after 5pm. Partly sunny, with a high near 67. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 67 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before midnight, then a slight chance of showers after 1am. Mostly cloudy, with a low around 48. West wind around 5 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 48 °F

    Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers. Mostly sunny, with a high near 66. Breezy, with a west wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 66 °F

    Slight Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 48. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 64. West wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 64 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 47. West wind 5 to 10 mph, with gusts as high as 25 mph.

    Low: 47 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 63. Breezy, with a west wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 63 °F

    Mostly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly before midnight. Some of the storms could be severe and produce heavy rainfall. Patchy dense fog after 9pm. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 51. East wind around 5 mph becoming calm. Winds could gust as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A 10 percent chance of showers after 5pm. Partly sunny, with a high near 67. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
A chance of showers before midnight, then a slight chance of showers after 1am. Mostly cloudy, with a low around 48. West wind around 5 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 66. Breezy, with a west wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 48. West wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 64. West wind 5 to 10 mph, with gusts as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 47. West wind 5 to 10 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 63. Breezy, with a west wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 47. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 62. West wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 47. West wind around 5 mph becoming calm in the evening.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 61. Northwest wind around 5 mph becoming southwest in the afternoon.
Tuesday Night
Partly cloudy, with a low around 46. Calm wind.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 61. Calm wind becoming southwest around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Marais MN
 47.76°N 90.33°W
Last Update:
6:16 pm CDT Jun 10, 2026
Forecast Valid:
6pm CDT Jun 10, 2026-6pm CDT Jun 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation