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

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, The Bay of Grand Marais (KGNA)

Lat: 47.75°NLon: 90.34°WElev: 610ft.

60°F

16°C

Humidity 96%
Wind Speed SE 3 mph
Barometer 29.96 in (1014.1 mb)
Dewpoint 59°F (15°C)
Visibility NA
Last update 15 Jul 10:56 pm CDT
Extended Forecast for

Grand Marais MN

  • Tonight

    Tonight: A 50 percent chance of showers. Cloudy, with a low around 49. Southeast wind 5 to 10 mph becoming northeast after midnight. Winds could gust as high as 20 mph.

    Low: 49 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers, mainly before 4pm. Cloudy, with a steady temperature around 52. East wind around 10 mph, with gusts as high as 20 mph.

    High: 52 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers, mainly before 1am. Mostly cloudy, with a steady temperature around 54. East wind around 5 mph becoming north after midnight.

    Low: 54 °F

    Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 62. North wind 5 to 10 mph becoming southwest in the afternoon.

    High: 62 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. West wind around 5 mph.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 62. Calm wind becoming southwest around 5 mph in the morning.

    High: 62 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Southwest wind around 5 mph becoming northeast after midnight.

    Low: 52 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, mainly before 1pm. Partly sunny, with a high near 61. East wind around 5 mph.

    High: 61 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 52. Northeast wind around 5 mph becoming calm in the evening.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 50 percent chance of showers. Cloudy, with a low around 49. Southeast wind 5 to 10 mph becoming northeast after midnight. Winds could gust as high as 20 mph.
Wednesday
A 40 percent chance of showers, mainly before 4pm. Cloudy, with a steady temperature around 52. East wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
A 50 percent chance of showers, mainly before 1am. Mostly cloudy, with a steady temperature around 54. East wind around 5 mph becoming north after midnight.
Thursday
Sunny, with a high near 62. North wind 5 to 10 mph becoming southwest in the afternoon.
Thursday Night
Mostly clear, with a low around 51. West wind around 5 mph.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 62. Calm wind becoming southwest around 5 mph in the morning.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Southwest wind around 5 mph becoming northeast after midnight.
Saturday
A chance of showers, mainly before 1pm. Partly sunny, with a high near 61. East wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 52. Northeast wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 64. North wind around 5 mph becoming south in the afternoon.
Sunday Night
Partly cloudy, with a low around 53. South wind around 5 mph becoming north after midnight.
Monday
A slight chance of showers. Partly sunny, with a high near 63. East wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
A chance of showers. Mostly cloudy, with a low around 53. East wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday
A chance of showers. Partly sunny, with a high near 64. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Marais MN
 47.74°N 90.33°W
Last Update:
11:28 pm CDT Jul 15, 2025
Forecast Valid:
11pm CDT Jul 15, 2025-6pm CDT Jul 22, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation