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

Heavy to Excessive Rainfall for the Southwest; Thunderstorms in Florida with Flooding Possible

Tropical moisture from Priscilla will bring a multi-day thunderstorm, widespread heavy rainfall and flash flooding event across the Southwest/Four Corners region. Flash flooding will be a concern in burn scars, slot canyons, and urban areas. Widespread storms are expected in central/South Florida with some isolated flash flooding possible. Read More >

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 89%
Wind Speed N 3 mph
Barometer 30.41 in (1030.4 mb)
Dewpoint 38°F (3°C)
Visibility NA
Last update 9 Oct 7:56 am CDT
Extended Forecast for

Grand Marais MN

  • Today

    Today: Sunny, with a high near 58. South wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 58 °F

    Sunny

  • Tonight

    Tonight: Showers likely, mainly after 10pm. Mostly cloudy, with a low around 50. Southwest wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Showers
    Likely

  • Friday

    Friday: A 50 percent chance of showers. Mostly sunny, with a high near 58. Breezy, with a northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 58 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46. North wind around 5 mph, with gusts as high as 20 mph.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 59. Northeast wind around 5 mph becoming east in the afternoon.

    High: 59 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 49. East wind around 5 mph, with gusts as high as 20 mph.

    Low: 49 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers after 1pm. Partly sunny, with a high near 60. Southeast wind around 10 mph, with gusts as high as 20 mph.

    High: 60 °F

    Partly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Showers. Mostly cloudy, with a low around 50. South wind around 10 mph, with gusts as high as 25 mph.

    Low: 50 °F

    Showers

  • Columbus Day

    Columbus Day: A chance of showers, mainly before 1pm. Mostly sunny, with a high near 61. Southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 61 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 58. South wind 5 to 10 mph, with gusts as high as 15 mph.
Tonight
Showers likely, mainly after 10pm. Mostly cloudy, with a low around 50. Southwest wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A 50 percent chance of showers. Mostly sunny, with a high near 58. Breezy, with a northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 46. North wind around 5 mph, with gusts as high as 20 mph.
Saturday
Partly sunny, with a high near 59. Northeast wind around 5 mph becoming east in the afternoon.
Saturday Night
Mostly cloudy, with a low around 49. East wind around 5 mph, with gusts as high as 20 mph.
Sunday
A chance of showers after 1pm. Partly sunny, with a high near 60. Southeast wind around 10 mph, with gusts as high as 20 mph.
Sunday Night
Showers. Mostly cloudy, with a low around 50. South wind around 10 mph, with gusts as high as 25 mph.
Columbus Day
A chance of showers, mainly before 1pm. Mostly sunny, with a high near 61. Southwest wind around 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 41. West wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 55. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 41. Northwest wind around 5 mph becoming northeast after midnight.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 54. East wind around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Marais MN
 47.76°N 90.33°W
Last Update:
6:10 am CDT Oct 9, 2025
Forecast Valid:
8am CDT Oct 9, 2025-6pm CDT Oct 15, 2025
 
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