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

Hazardous Weather Conditions

Current conditions at

Grand Marais, The Bay of Grand Marais (KGNA)

Lat: 47.75°NLon: 90.34°WElev: 610ft.

31°F

-1°C

Humidity 76%
Wind Speed Calm
Barometer 29.96 in (1015.4 mb)
Dewpoint 24°F (-4°C)
Visibility NA
Last update 22 Apr 3:56 am CDT
Extended Forecast for

Grand Marais MN

  • Today

    Today: Sunny, with a high near 51. Light east wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 51 °F

    Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms before 4am, then a slight chance of showers. Increasing clouds, with a low around 40. Breezy, with a northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 40 °F

    Chance
    Showers and
    Breezy

  • Thursday

    Thursday: A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 50. Breezy, with an east wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 50 °F

    Breezy.
    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 42. East wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 42 °F

    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 50. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 50 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of showers, mainly before 1am. Partly cloudy, with a low around 37. Northwest wind around 5 mph, with gusts as high as 15 mph.

    Low: 37 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 50. Northwest wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 49. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 49 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 51. Light east wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Tonight
A chance of showers and thunderstorms before 4am, then a slight chance of showers. Increasing clouds, with a low around 40. Breezy, with a northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Thursday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 50. Breezy, with an east wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Showers and possibly a thunderstorm. Low around 42. East wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 50. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Friday Night
A 30 percent chance of showers, mainly before 1am. Partly cloudy, with a low around 37. Northwest wind around 5 mph, with gusts as high as 15 mph.
Saturday
Mostly sunny, with a high near 50. Northwest wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.
Saturday Night
Partly cloudy, with a low around 35. Calm wind.
Sunday
Mostly sunny, with a high near 49. Calm wind becoming southeast around 5 mph in the afternoon.
Sunday Night
A slight chance of rain after 1am. Mostly cloudy, with a low around 38. East wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
A chance of rain. Mostly cloudy, with a high near 47. Breezy, with an east wind 10 to 15 mph, with gusts as high as 30 mph.
Monday Night
A chance of rain. Mostly cloudy, with a low around 37. Breezy, with a northeast wind around 15 mph becoming north after midnight. Winds could gust as high as 35 mph.
Tuesday
A chance of rain. Mostly cloudy, with a high near 47. Breezy, with a northwest wind around 15 mph, with gusts as high as 35 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Marais MN
 47.74°N 90.36°W
Last Update:
2:51 am CDT Apr 22, 2026
Forecast Valid:
4am CDT Apr 22, 2026-6pm CDT Apr 28, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation