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.

36°F

2°C

Humidity 97%
Wind Speed E 10 mph
Barometer 30.01 in (1017.1 mb)
Dewpoint 35°F (2°C)
Visibility NA
Wind Chill29°F (-2°C)
Last update 27 Apr 2:56 am CDT
Extended Forecast for

Grand Marais MN

Flood Watch April 27, 10:00am until April 28, 03:00am
Click here for hazard details and duration
Flood Watch

  • Overnight

    Overnight: A slight chance of rain between 4am and 5am. Cloudy, with a steady temperature around 37. Breezy, with a northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 37 °F

    Slight Chance
    Rain and
    Breezy

  • Monday

    Monday: Rain, mainly after 11am. High near 46. Breezy, with a northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 46 °F

    Breezy. Rain
    Likely then
    Rain

  • Monday Night

    Monday Night: Rain, mainly before 9pm. Patchy fog between 10pm and 11pm. Low around 39. Breezy, with a northeast wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 39 °F

    Rain and
    Patchy Fog
    then Chance
    Rain and
    Breezy

  • Tuesday

    Tuesday: A 10 percent chance of rain before 7am. Mostly sunny, with a high near 47. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 47 °F

    Breezy.
    Slight Chance
    Rain then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 35. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 35 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 44. West wind around 5 mph.

    High: 44 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 33. North wind around 5 mph.

    Low: 33 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 42. North wind around 5 mph becoming south in the afternoon.

    High: 42 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Partly Cloudy

Detailed Forecast

Overnight
A slight chance of rain between 4am and 5am. Cloudy, with a steady temperature around 37. Breezy, with a northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Monday
Rain, mainly after 11am. High near 46. Breezy, with a northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Monday Night
Rain, mainly before 9pm. Patchy fog between 10pm and 11pm. Low around 39. Breezy, with a northeast wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
A 10 percent chance of rain before 7am. Mostly sunny, with a high near 47. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 35 mph.
Tuesday Night
Partly cloudy, with a low around 35. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 44. West wind around 5 mph.
Wednesday Night
Partly cloudy, with a low around 33. North wind around 5 mph.
Thursday
Mostly sunny, with a high near 42. North wind around 5 mph becoming south in the afternoon.
Thursday Night
Partly cloudy, with a low around 33. Calm wind.
Friday
Mostly sunny, with a high near 43. North wind 5 to 10 mph becoming south in the afternoon.
Friday Night
Partly cloudy, with a low around 34. Southwest wind around 5 mph becoming calm.
Saturday
Sunny, with a high near 48. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 38. Calm wind.
Sunday
Mostly sunny, with a high near 49. Northwest wind around 5 mph becoming southwest in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Marais MN
 47.74°N 90.33°W
Last Update:
1:21 am CDT Apr 27, 2026
Forecast Valid:
3am CDT Apr 27, 2026-6pm CDT May 3, 2026
 
Forecast Discussion
 
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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