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.

63°F

17°C

Humidity 90%
Wind Speed Calm
Barometer 30.13 in (1020.0 mb)
Dewpoint 60°F (16°C)
Visibility NA
Last update 3 Aug 7:56 pm CDT
Extended Forecast for

Grand Marais MN

  • Tonight

    Tonight: A chance of sprinkles before 9pm, then a chance of sprinkles after 4am. Areas of smoke. Partly cloudy, with a low around 63. Northwest wind around 5 mph.

    Low: 63 °F

    Chance
    Sprinkles

  • Monday

    Monday: A chance of sprinkles with a slight chance of showers before 10am, then a chance of sprinkles between 10am and 11am, then a slight chance of showers after 11am. Areas of smoke. Partly sunny, with a high near 74. North wind around 5 mph becoming south in the afternoon. Chance of precipitation is 20%.

    High: 74 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A chance of sprinkles before 7pm. Areas of smoke before 8pm. Mostly cloudy, with a low around 60. Northeast wind around 5 mph.

    Low: 60 °F

    Chance
    Sprinkles
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74. East wind around 5 mph.

    High: 74 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61. East wind around 5 mph.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 76. Southeast wind around 5 mph.

    High: 76 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. East wind around 5 mph becoming south after midnight.

    Low: 65 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms. Partly sunny, with a high near 77. Southwest wind around 5 mph.

    High: 77 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm.

    Low: 66 °F

    Slight Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
A chance of sprinkles before 9pm, then a chance of sprinkles after 4am. Areas of smoke. Partly cloudy, with a low around 63. Northwest wind around 5 mph.
Monday
A chance of sprinkles with a slight chance of showers before 10am, then a chance of sprinkles between 10am and 11am, then a slight chance of showers after 11am. Areas of smoke. Partly sunny, with a high near 74. North wind around 5 mph becoming south in the afternoon. Chance of precipitation is 20%.
Monday Night
A chance of sprinkles before 7pm. Areas of smoke before 8pm. Mostly cloudy, with a low around 60. Northeast wind around 5 mph.
Tuesday
Mostly sunny, with a high near 74. East wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 61. East wind around 5 mph.
Wednesday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 76. Southeast wind around 5 mph.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. East wind around 5 mph becoming south after midnight.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 77. Southwest wind around 5 mph.
Thursday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 80. South wind around 5 mph.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Southeast wind around 5 mph becoming west after midnight.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. Southeast wind around 5 mph.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Southeast wind around 5 mph becoming northwest after midnight.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 77. Southwest wind around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Marais MN
 47.76°N 90.33°W
Last Update:
6:11 pm CDT Aug 3, 2025
Forecast Valid:
8pm CDT Aug 3, 2025-6pm CDT Aug 10, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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