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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 96%
Wind Speed Calm
Barometer 29.77 in (1009.1 mb)
Dewpoint 30°F (-1°C)
Visibility NA
Last update 16 Apr 5:56 am CDT
Extended Forecast for

Grand Marais MN

Dense Fog Advisory April 16, 06:09am until April 16, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory April 16, 06:09am until April 16, 10:00am

    NOW until 10:00am Thu

    Dense Fog Advisory

  • Today

    High: 43 °F

    Areas Dense
    Fog

  • Tonight

    Tonight: A 20 percent chance of rain after 3am. Patchy fog between 8pm and 9pm. Otherwise, mostly cloudy, with a low around 37. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 37 °F

    Patchy Fog
    then Slight
    Chance Rain

  • Friday

    Friday: Rain and possibly a thunderstorm, mainly after 4pm. High near 48. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 48 °F

    Partly Sunny
    then Rain

  • Friday Night

    Friday Night: A chance of rain and thunderstorms before 7pm, then a chance of rain between 7pm and 1am. Mostly cloudy, with a low around 27. Blustery, with a northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.

    Low: 27 °F

    Blustery.
    Chance
    T-storms then
    Chance Rain

  • Saturday

    Saturday: Partly sunny, with a high near 35. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 35 °F

    Partly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 23. Blustery, with a northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 23 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • 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 25. Northwest wind around 5 mph becoming calm in the evening.

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Today
Patchy dense fog between noon and 2pm. Otherwise, mostly sunny, with a high near 43. Calm wind becoming southwest around 5 mph.
Tonight
A 20 percent chance of rain after 3am. Patchy fog between 8pm and 9pm. Otherwise, mostly cloudy, with a low around 37. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
Rain and possibly a thunderstorm, mainly after 4pm. High near 48. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A chance of rain and thunderstorms before 7pm, then a chance of rain between 7pm and 1am. Mostly cloudy, with a low around 27. Blustery, with a northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Saturday
Partly sunny, with a high near 35. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Mostly cloudy, with a low around 23. Blustery, with a northwest wind 10 to 15 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 25. Northwest wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 43. South wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
Mostly cloudy, with a low around 35. Southeast wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 49. West wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
Mostly clear, with a low around 34. Northwest wind around 5 mph.
Wednesday
Sunny, with a high near 47. North wind 5 to 10 mph becoming east in the afternoon.
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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:
5:52 am CDT Apr 16, 2026
Forecast Valid:
6am CDT Apr 16, 2026-6pm CDT Apr 22, 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