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 92%
Wind Speed Calm
Barometer 30.21 in (1023.9 mb)
Dewpoint 29°F (-2°C)
Visibility NA
Last update 20 May 2:56 am CDT
Extended Forecast for

Grand Marais MN

Freeze Warning until May 20, 08:00am
Click here for hazard details and duration
Freeze Warning
  •  
    Freeze Warning until May 20, 08:00am

    NOW until 8:00am Wed

    Freeze Warning

  • Overnight

    Low: 34 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 45. Northwest wind 5 to 10 mph becoming south in the afternoon.

    High: 45 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 35. Calm wind.

    Low: 35 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 48. Calm wind becoming southeast around 5 mph in the morning.

    High: 48 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37. Northeast wind around 5 mph.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 50. Breezy, with an east wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 50 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 39. Breezy, with a northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 39 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Saturday

    Saturday: A chance of showers. Mostly cloudy, with a high near 48. Breezy, with an east wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 48 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Overnight
Partly cloudy, with a low around 34. Calm wind.
Wednesday
Mostly sunny, with a high near 45. Northwest wind 5 to 10 mph becoming south in the afternoon.
Wednesday Night
Mostly clear, with a low around 35. Calm wind.
Thursday
Mostly sunny, with a high near 48. Calm wind becoming southeast around 5 mph in the morning.
Thursday Night
Partly cloudy, with a low around 37. Northeast wind around 5 mph.
Friday
Mostly sunny, with a high near 50. Breezy, with an east wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Friday Night
Mostly cloudy, with a low around 39. Breezy, with a northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
A chance of showers. Mostly cloudy, with a high near 48. Breezy, with an east wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 41. East wind 5 to 10 mph becoming light north after midnight. Winds could gust as high as 20 mph.
Sunday
Partly sunny, with a high near 57. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 44. Calm wind.
Memorial Day
Mostly sunny, with a high near 62. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 47. South wind around 5 mph becoming calm.
Tuesday
Mostly sunny, with a high near 63. Calm wind becoming southeast around 5 mph 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:
2:36 am CDT May 20, 2026
Forecast Valid:
4am CDT May 20, 2026-6pm CDT May 26, 2026
 
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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