News Headlines
- Request for Comments: The National Weather Service is planning to modernize its Cooperative Observer Program (COOP) network by harnessing new technology, optimizing observation sites and leveraging high-quality commercial data.
- NOAA Weather Radio User Survey (Open until May 28, 2026)
- Skywarn Spotter Training - Miss our in-person training this spring? You can still watch the virtual recorded training anytime!
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 | 97% |
| Wind Speed | N 7 mph |
| Barometer | 29.81 in (1009.8 mb) |
| Dewpoint | 53°F (12°C) |
| Visibility | NA |
| Wind Chill | 52°F (11°C) |
| Last update | 25 May 8:56 pm CDT |
Extended Forecast for
Grand Marais MN
Tonight
Low: 52 °F
Chance
T-storms then
Mostly ClearTuesday

High: 70 °F
Sunny
Tuesday Night

Low: 48 °F
Mostly Clear
Wednesday

High: 63 °F
Mostly Sunny
Wednesday Night

Low: 46 °F
Clear
Thursday

High: 63 °F
Sunny
Thursday Night

Low: 47 °F
Clear
Friday

High: 67 °F
Mostly Sunny
Friday Night

Low: 47 °F
Mostly Clear
Detailed Forecast
Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Partly cloudy, with a low around 52. West wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.
Tuesday
Sunny, with a high near 70. North wind around 5 mph becoming calm in the afternoon.
Tuesday Night
Mostly clear, with a low around 48. Calm wind becoming northeast around 5 mph after midnight.
Wednesday
Mostly sunny, with a high near 63. East wind around 5 mph.
Wednesday Night
Clear, with a low around 46. Calm wind.
Thursday
Sunny, with a high near 63. Calm wind becoming southeast around 5 mph.
Thursday Night
Clear, with a low around 47. Calm wind.
Friday
Mostly sunny, with a high near 67. Northwest wind around 5 mph becoming southeast in the afternoon.
Friday Night
Mostly clear, with a low around 47. Calm wind becoming northeast around 5 mph after midnight.
Saturday
Sunny, with a high near 64. East wind around 5 mph, with gusts as high as 15 mph.
Saturday Night
Mostly clear, with a low around 47. East wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 67. Calm wind becoming south around 5 mph.
Sunday Night
Mostly clear, with a low around 49. Calm wind.
Monday
Sunny, with a high near 70. Northwest wind around 5 mph becoming southwest in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Grand Marais MN
47.76°N 90.33°W
47.76°N 90.33°W
9:12 pm CDT May 25, 2026
9pm CDT May 25, 2026-6pm CDT Jun 1, 2026



