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

Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Hazardous Weather Conditions

Current conditions at

Grand Marais, The Bay of Grand Marais (KGNA)

Lat: 47.75°NLon: 90.34°WElev: 610ft.

57°F

14°C

Humidity 74%
Wind Speed E 12 mph
Barometer 29.79 in (1008.7 mb)
Dewpoint 49°F (9°C)
Visibility NA
Last update 10 Oct 10:56 am CDT
Extended Forecast for

24 Miles ESE Grand Portage MN

  • This Afternoon

    This Afternoon: Sunny, with a high near 71. South wind around 10 mph, with gusts as high as 20 mph.

    High: 71 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 56. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 66. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: A 50 percent chance of showers after 2am. Mostly cloudy, with a low around 44. Northeast wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 44 °F

    Mostly Cloudy
    then Chance
    Showers

  • Columbus Day

    Columbus Day: Showers likely, mainly between 8am and 2pm. Cloudy, with a high near 54. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

    High: 54 °F

    Showers
    Likely and
    Breezy

  • Monday Night

    Monday Night: A 50 percent chance of showers before 2am. Cloudy, with a low around 40.

    Low: 40 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 71. South wind around 10 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 56. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 66. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
A 50 percent chance of showers after 2am. Mostly cloudy, with a low around 44. Northeast wind 5 to 15 mph, with gusts as high as 25 mph.
Columbus Day
Showers likely, mainly between 8am and 2pm. Cloudy, with a high near 54. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Monday Night
A 50 percent chance of showers before 2am. Cloudy, with a low around 40.
Tuesday
Mostly cloudy, with a high near 53.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
Mostly sunny, with a high near 55.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
A chance of showers. Partly sunny, with a high near 55.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 41.
Friday
A chance of showers. Mostly cloudy, with a high near 53. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
24 Miles ESE Grand Portage MN
 47.9°N 89.17°W (Elev. 600 ft)
Last Update:
11:18 am EDT Oct 10, 2026
Forecast Valid:
12pm EDT Oct 10, 2026-6pm EDT Oct 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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