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.41°F
5°C
| Humidity | 100% |
| Wind Speed | W 7 mph |
| Barometer | 29.96 in (1015.2 mb) |
| Dewpoint | 41°F (5°C) |
| Visibility | NA |
| Wind Chill | 36°F (2°C) |
| Last update | 24 May 4:56 am CDT |
Extended Forecast for
Grand Marais MN
Dense Fog Advisory until May 24, 10:00am
NOW until 10:00am Sun
Dense Fog Advisory
Overnight
Low: 41 °F
Areas Dense
FogSunday
High: 57 °F
Areas Dense
Fog then
Slight Chance
T-stormsSunday Night
Low: 43 °F
Partly Cloudy
Memorial Day
High: 58 °F
Slight Chance
Showers then
Slight Chance
T-stormsMonday Night
Low: 47 °F
Slight Chance
T-storms then
Slight Chance
ShowersTuesday
High: 63 °F
Mostly Sunny
Tuesday Night
Low: 46 °F
Partly Cloudy
Wednesday
High: 56 °F
Sunny and
Breezy
Detailed Forecast
Overnight
Areas of dense fog. Otherwise, mostly cloudy, with a steady temperature around 41. Calm wind.
Sunday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Areas of dense fog before 9am. Otherwise, mostly sunny, with a high near 57. Southwest wind around 5 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 43. Calm wind.
Memorial Day
A slight chance of showers before 11am, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 58. Calm wind becoming south around 5 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 47. Calm wind becoming west around 5 mph. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 63. West wind around 5 mph becoming south in the afternoon.
Tuesday Night
Partly cloudy, with a low around 46. Calm wind becoming northeast around 5 mph after midnight.
Wednesday
Sunny, with a high near 56. Breezy, with an east wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 45. Northeast wind around 5 mph.
Thursday
Sunny, with a high near 59. East wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 45. Calm wind.
Friday
Sunny, with a high near 60. Calm wind becoming east around 5 mph in the morning.
Friday Night
Mostly clear, with a low around 46. Calm wind.
Saturday
Sunny, with a high near 59. East wind 5 to 10 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Grand Marais MN
47.74°N 90.33°W
47.74°N 90.33°W
3:11 am CDT May 24, 2026
5am CDT May 24, 2026-6pm CDT May 30, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
