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.

41°F

5°C

Humidity 82%
Wind Speed E 13 mph
Barometer 29.80 in (1009.8 mb)
Dewpoint 36°F (2°C)
Visibility NA
Wind Chill34°F (1°C)
Last update 14 Apr 7:56 am CDT
Extended Forecast for

Grand Marais MN

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly before 2pm. Patchy fog between 9am and 4pm. Otherwise, cloudy, with a high near 40. Northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 40 °F

    Chance
    T-storms and
    Patchy Fog

  • Tonight

    Tonight: Widespread dense fog, mainly after 3am. Otherwise, mostly cloudy, with a low around 36. Northeast wind around 5 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Cloudy
    then Dense
    Fog

  • Wednesday

    Wednesday: Widespread dense fog before 8am. Otherwise, mostly cloudy, with a high near 42. North wind around 5 mph becoming east in the afternoon.

    High: 42 °F

    Dense Fog
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 36. Northeast wind around 5 mph becoming north after midnight.

    Low: 36 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 48. North wind around 5 mph becoming south in the afternoon.

    High: 48 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 37. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Friday

    Friday: A chance of rain, mainly after 1pm. Mostly cloudy, with a high near 47. Breezy, with an east wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 47 °F

    Chance Rain
    and Breezy

  • Friday Night

    Friday Night: Rain and possibly a thunderstorm before 1am, then rain likely. Mostly cloudy, with a low around 34. Breezy, with an east wind around 15 mph becoming northwest after midnight. Winds could gust as high as 30 mph.

    Low: 34 °F

    Rain and
    Breezy

  • Saturday

    Saturday: A chance of rain and snow before 4pm, then a chance of snow. Mostly cloudy, with a high near 40. Breezy, with a northwest wind around 20 mph, with gusts as high as 30 mph.

    High: 40 °F

    Chance
    Rain/Snow and
    Breezy

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly before 2pm. Patchy fog between 9am and 4pm. Otherwise, cloudy, with a high near 40. Northeast wind around 10 mph, with gusts as high as 20 mph.
Tonight
Widespread dense fog, mainly after 3am. Otherwise, mostly cloudy, with a low around 36. Northeast wind around 5 mph becoming calm in the evening.
Wednesday
Widespread dense fog before 8am. Otherwise, mostly cloudy, with a high near 42. North wind around 5 mph becoming east in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 36. Northeast wind around 5 mph becoming north after midnight.
Thursday
Mostly sunny, with a high near 48. North wind around 5 mph becoming south in the afternoon.
Thursday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 37. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
A chance of rain, mainly after 1pm. Mostly cloudy, with a high near 47. Breezy, with an east wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Rain and possibly a thunderstorm before 1am, then rain likely. Mostly cloudy, with a low around 34. Breezy, with an east wind around 15 mph becoming northwest after midnight. Winds could gust as high as 30 mph.
Saturday
A chance of rain and snow before 4pm, then a chance of snow. Mostly cloudy, with a high near 40. Breezy, with a northwest wind around 20 mph, with gusts as high as 30 mph.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 26. Windy, with a northwest wind 20 to 25 mph, with gusts as high as 35 mph.
Sunday
Mostly sunny, with a high near 37. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 35 mph.
Sunday Night
Partly cloudy, with a low around 27. Breezy, with a west wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 40. Breezy, with a northwest wind 10 to 15 mph becoming southeast in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Marais MN
 47.74°N 90.33°W
Last Update:
6:27 am CDT Apr 14, 2026
Forecast Valid:
8am CDT Apr 14, 2026-6pm CDT Apr 20, 2026
 
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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