Hazardous Weather Conditions
Current conditions at
Grand Marais, The Bay of Grand Marais (KGNA)
Lat: 47.75°NLon: 90.34°WElev: 610ft.54°F
12°C
| Humidity | 90% |
| Wind Speed | Calm |
| Barometer | 30.06 in (1017.8 mb) |
| Dewpoint | 51°F (11°C) |
| Visibility | NA |
| Last update | 24 Aug 11:56 pm CDT |
Extended Forecast for
Grand Marais MN
Overnight

Low: 50 °F
Mostly Cloudy
Tuesday

High: 62 °F
Showers
LikelyTuesday Night
Low: 54 °F
Showers
Likely then
Slight Chance
ShowersWednesday
High: 70 °F
Partly Sunny
then Chance
ShowersWednesday Night

Low: 53 °F
Partly Cloudy
Thursday

High: 62 °F
Mostly Sunny
Thursday Night

Low: 49 °F
Partly Cloudy
Friday

High: 63 °F
Mostly Sunny
Friday Night

Low: 51 °F
Partly Cloudy
Detailed Forecast
Overnight
Mostly cloudy, with a low around 50. Calm wind.
Tuesday
A chance of showers before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 62. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and thunderstorms likely before midnight, then a slight chance of showers between midnight and 1am. Mostly cloudy, with a low around 54. East wind around 5 mph becoming calm. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 70. Northwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 53. Northwest wind around 10 mph, with gusts as high as 15 mph.
Thursday
Mostly sunny, with a high near 62. Northwest wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 49. North wind around 5 mph becoming calm.
Friday
Mostly sunny, with a high near 63. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 51. South wind around 5 mph becoming calm.
Saturday
A chance of showers, mainly after 1pm. Partly sunny, with a high near 66. Calm wind becoming east around 5 mph in the morning.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 55. East wind around 5 mph becoming calm after midnight.
Sunday
A chance of showers. Partly sunny, with a high near 67. East wind 5 to 10 mph.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 55. Northeast wind around 5 mph.
Monday
A slight chance of showers. Partly sunny, with a high near 68. Breezy, with an east wind 10 to 15 mph, with gusts as high as 25 mph.
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ABOUT THIS FORECAST
Point Forecast:
Grand Marais MN
47.74°N 90.33°W
47.74°N 90.33°W
12:16 am CDT Aug 25, 2026
12am CDT Aug 25, 2026-6pm CDT Aug 31, 2026



