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.

40°F

4°C

Humidity 86%
Wind Speed E 14 G 23 mph
Barometer 29.79 in (1009.7 mb)
Dewpoint 36°F (2°C)
Visibility NA
Wind Chill32°F (0°C)
Last update 16 Apr 8:56 pm CDT
Extended Forecast for

Grand Marais MN

  • Tonight

    Tonight: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 39. Northeast wind around 10 mph, with gusts as high as 15 mph.

    Low: 39 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 52. East wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 52 °F

    Partly Sunny
    then Showers

  • Friday Night

    Friday Night: Rain showers likely before midnight, then a chance of snow showers between midnight and 1am. Some thunder is also possible. Mostly cloudy, with a low around 27. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 27 °F

    Blustery.
    Showers
    Likely then
    Chance Snow
    Showers

  • Saturday

    Saturday: A 20 percent chance of snow before 1pm. Partly sunny, with a high near 34. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 34 °F

    Slight Chance
    Snow and
    Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 24. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 24 °F

    Mostly Cloudy
    and Blustery

  • Sunday

    Sunday: Mostly sunny, with a high near 38. Northwest wind around 10 mph, with gusts as high as 20 mph.

    High: 38 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 27. Northwest wind around 5 mph becoming calm in the evening.

    Low: 27 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 43. Breezy, with a south wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 43 °F

    Sunny then
    Partly Sunny
    and Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 38. Breezy, with a south wind 10 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph.

    Low: 38 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

Detailed Forecast

Tonight
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 39. Northeast wind around 10 mph, with gusts as high as 15 mph.
Friday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 52. East wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Rain showers likely before midnight, then a chance of snow showers between midnight and 1am. Some thunder is also possible. Mostly cloudy, with a low around 27. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday
A 20 percent chance of snow before 1pm. Partly sunny, with a high near 34. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.
Saturday Night
Mostly cloudy, with a low around 24. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Mostly sunny, with a high near 38. Northwest wind around 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 27. Northwest wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 43. Breezy, with a south wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 38. Breezy, with a south wind 10 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph.
Tuesday
Sunny, with a high near 50. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 37. North wind around 5 mph, with gusts as high as 15 mph.
Wednesday
Sunny, with a high near 49. North wind 5 to 10 mph becoming southeast in the afternoon.
Wednesday Night
Partly cloudy, with a low around 38. East wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday
A slight chance of rain. Mostly sunny, with a high near 47. Breezy, with an east wind 10 to 15 mph, with gusts as high as 20 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Marais MN
 47.74°N 90.33°W
Last Update:
9:02 pm CDT Apr 16, 2026
Forecast Valid:
9pm CDT Apr 16, 2026-6pm CDT Apr 23, 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