Hazardous Weather Conditions
Current conditions at
Grand Marais, The Bay of Grand Marais (KGNA)
Lat: 47.75°NLon: 90.34°WElev: 610ft.64°F
18°C
| Humidity | 96% |
| Wind Speed | E 17 G 25 mph |
| Barometer | 29.85 in (1010.2 mb) |
| Dewpoint | 63°F (17°C) |
| Visibility | NA |
| Last update | 31 Aug 2:56 am CDT |
Extended Forecast for
Grand Marais MN
Overnight

Low: 60 °F
Showers and
Patchy FogMonday
High: 68 °F
Showers
Likely and
Patchy Fog
then Patchy
FogMonday Night

Low: 57 °F
Partly Cloudy
Tuesday

High: 72 °F
Mostly Sunny
Tuesday Night

Low: 56 °F
Mostly Cloudy
Wednesday

High: 68 °F
Partly Sunny
Wednesday Night

Low: 54 °F
Partly Cloudy
Thursday

High: 64 °F
Mostly Sunny
Thursday Night
Low: 55 °F
Partly Cloudy
then Slight
Chance
Showers
Detailed Forecast
Overnight
Showers and possibly a thunderstorm. Patchy fog. Steady temperature around 60. Breezy, with an east wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Showers likely and possibly a thunderstorm before 9am, then a chance of showers and thunderstorms between 9am and 10am. Patchy fog before 1pm. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 68. East wind 5 to 10 mph becoming light and variable. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Partly cloudy, with a low around 57. West wind around 5 mph becoming calm.
Tuesday
Mostly sunny, with a high near 72. Light west wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 56. Northwest wind around 5 mph, with gusts as high as 15 mph.
Wednesday
Partly sunny, with a high near 68. Calm wind becoming southwest around 5 mph.
Wednesday Night
Partly cloudy, with a low around 54. Calm wind.
Thursday
Mostly sunny, with a high near 64. East wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday Night
A slight chance of showers after 1am. Mostly cloudy, with a low around 55. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 69. East wind 5 to 10 mph, with gusts as high as 15 mph.
Friday Night
Partly cloudy, with a low around 57. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
A slight chance of showers. Partly sunny, with a high near 71. East wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 59. East wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 15 mph.
Sunday
A slight chance of showers. Partly sunny, with a high near 71. Northwest wind around 5 mph becoming southeast in the afternoon.
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ABOUT THIS FORECAST
Point Forecast:
Grand Marais MN
47.74°N 90.33°W
47.74°N 90.33°W
2:51 am CDT Aug 31, 2026
3am CDT Aug 31, 2026-6pm CDT Sep 6, 2026



