Hazardous Weather Conditions
Current conditions at
Grand Marais, The Bay of Grand Marais (KGNA)
Lat: 47.75°NLon: 90.34°WElev: 610ft.3°C
38°F
| Humidity | 76% |
| Wind Speed | NE 9 km/h |
| Barometer | 1019.6 mb (30.10 in) |
| Dewpoint | -1°C (31°F) |
| Visibility | NA |
| Wind Chill | 1°C (33°F) |
| Last update | 17 May 3:56 am CDT |
Extended Forecast for
Grand Marais MN
Frost Advisory May 17, 04:43am until May 17, 08:00am
NOW until 8:00am Sun
Frost Advisory
Today
High: 11 °C
Partly Sunny
then Slight
Chance
Showers and
BreezyTonight
Low: 5 °C
Breezy.
Chance
T-storms then
Heavy RainMonday

High: 14 °C
Chance
ShowersMonday Night
Low: 3 °C
Chance
Showers then
ShowersTuesday

High: 8 °C
Showers
Tuesday Night

Low: 1 °C
Mostly Cloudy
Wednesday

High: 11 °C
Mostly Sunny
Wednesday Night

Low: 3 °C
Mostly Clear
Detailed Forecast
Today
A slight chance of showers between 4pm and 5pm. Partly sunny, with a high near 11. Breezy, with an east wind 10 to 15 km/h increasing to 20 to 25 km/h in the afternoon. Winds could gust as high as 50 km/h. Chance of precipitation is 20%.
Tonight
Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then showers likely after 4am. Some of the storms could produce heavy rainfall. Low around 5. Breezy, with an east wind 20 to 25 km/h, with gusts as high as 60 km/h. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 cm possible.
Monday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 4pm, then a chance of showers after 4pm. Mostly cloudy, with a high near 14. Northeast wind around 10 km/h, with gusts as high as 25 km/h. Chance of precipitation is 30%.
Monday Night
A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers after 1am. Low around 3. Northeast wind 10 to 20 km/h, with gusts as high as 45 km/h. Chance of precipitation is 90%. New rainfall amounts between 7.5 mm and 1 cm possible.
Tuesday
Showers before 1pm. High near 8. North wind 15 to 20 km/h, with gusts as high as 45 km/h. Chance of precipitation is 80%. New precipitation amounts between 5 and 7.5 mm possible.
Tuesday Night
Mostly cloudy, with a low around 1. North wind 5 to 10 km/h, with gusts as high as 25 km/h.
Wednesday
Mostly sunny, with a high near 11. Northwest wind around 10 km/h becoming southwest in the afternoon. Winds could gust as high as 25 km/h.
Wednesday Night
Mostly clear, with a low around 3. Calm wind.
Thursday
Sunny, with a high near 13. Calm wind becoming south 5 to 10 km/h in the morning.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 4. Calm wind.
Friday
A slight chance of showers. Partly sunny, with a high near 14. Calm wind becoming southeast 5 to 10 km/h in the morning.
Friday Night
A slight chance of showers. Mostly cloudy, with a low around 6. Calm wind.
Saturday
A slight chance of showers. Partly sunny, with a high near 14. East wind 5 to 15 km/h, with gusts as high as 25 km/h.
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ABOUT THIS FORECAST
Point Forecast:
Grand Marais MN
47.76°N 90.33°W
47.76°N 90.33°W
2:36 am CDT May 17, 2026
4am CDT May 17, 2026-6pm CDT May 23, 2026



