National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Grand Marais, The Bay of Grand Marais (KGNA)

Lat: 47.75°NLon: 90.34°WElev: 610ft.

38°F

3°C

Humidity 51%
Wind Speed W 7 mph
Barometer 30.06 in (1018.8 mb)
Dewpoint 21°F (-6°C)
Visibility NA
Wind Chill33°F (1°C)
Last update 1 May 7:56 pm CDT
Extended Forecast for

4 Miles SW Grand Portage MN

  • Tonight

    Tonight: Partly cloudy, with a low around 33. Southwest wind around 5 mph becoming calm in the evening.

    Low: 33 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 42. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 42 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 37. Southwest wind around 5 mph.

    Low: 37 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 49. Breezy, with a west wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 49 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 39. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 39 °F

    Partly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A 50 percent chance of showers. Mostly cloudy, with a high near 48. Breezy, with a west wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 48 °F

    Chance
    Showers and
    Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 35. Breezy, with a northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 35 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 42. West wind around 10 mph, with gusts as high as 20 mph.

    High: 42 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 33 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 33. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 42. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Saturday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 37. Southwest wind around 5 mph.
Sunday
Mostly sunny, with a high near 49. Breezy, with a west wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 39. Southwest wind around 10 mph, with gusts as high as 20 mph.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 48. Breezy, with a west wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, with a low around 35. Breezy, with a northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Partly sunny, with a high near 42. West wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 33. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 42. West wind around 10 mph, with gusts as high as 15 mph.
Wednesday Night
Mostly cloudy, with a low around 34. Northwest wind around 5 mph.
Thursday
Partly sunny, with a high near 43. Northwest wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Mostly cloudy, with a low around 36. Northwest wind around 5 mph.
Friday
Partly sunny, with a high near 46. West wind 5 to 10 mph, with gusts as high as 15 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Grand Portage MN
 47.92°N 89.73°W
Last Update:
5:47 pm CDT May 1, 2026
Forecast Valid:
8pm CDT May 1, 2026-6pm CDT May 8, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation