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Heavy Rain and Thunderstorms in the Plains; Snow in the Northern Rockies

A storm system moving eastward will bring widespread showers and thunderstorms over parts of the Northern Plains to the Southern Plains and Upper Great Lakes through Friday. Heavy snow will continue over parts of the Northern Rockies. Read More >

Hazardous Weather Conditions

Current conditions at

Grand Marais/Cook County Airport (KCKC)

Lat: 47.84°NLon: 90.39°WElev: 1784ft.

Mostly Cloudy

45°F

7°C

Humidity 93%
Wind Speed E 5 mph
Barometer 30.22 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 16 Oct 5:35 am CDT
Extended Forecast for

Grand Portage MN

  • Today

    Today: Showers, mainly after 1pm. Patchy fog after 5pm. High near 54. Light and variable wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 54 °F

    Partly Sunny
    then Showers
    and Patchy
    Fog

  • Tonight

    Tonight: Showers, mainly before 4am. Patchy fog before 7pm. Steady temperature around 50. South wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Showers and
    Patchy Fog

  • Friday

    Friday: A 40 percent chance of showers. Mostly cloudy, with a high near 61. South wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 61 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 48. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 59. West wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 59 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 43. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 43 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 54. Northwest wind around 10 mph, with gusts as high as 25 mph.

    High: 54 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 41. West wind around 5 mph, with gusts as high as 15 mph.

    Low: 41 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 54. West wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 15 mph.

    High: 54 °F

    Mostly Sunny

Detailed Forecast

Today
Showers, mainly after 1pm. Patchy fog after 5pm. High near 54. Light and variable wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Showers, mainly before 4am. Patchy fog before 7pm. Steady temperature around 50. South wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 61. South wind 5 to 10 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 48. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.
Saturday
Mostly sunny, with a high near 59. West wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday Night
Mostly cloudy, with a low around 43. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 54. Northwest wind around 10 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 41. West wind around 5 mph, with gusts as high as 15 mph.
Monday
Mostly sunny, with a high near 54. West wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 15 mph.
Monday Night
A chance of showers, mainly after 1am. Mostly cloudy, with a low around 42. Southeast wind around 5 mph becoming northeast after midnight. Winds could gust as high as 20 mph.
Tuesday
A chance of showers. Partly sunny, with a high near 52. North wind around 10 mph, with gusts as high as 25 mph.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 39. Northwest wind around 10 mph, with gusts as high as 25 mph.
Wednesday
A chance of showers. Partly sunny, with a high near 49. Northwest wind around 10 mph, with gusts as high as 25 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Portage MN
 47.96°N 89.69°W
Last Update:
4:25 am CDT Oct 16, 2025
Forecast Valid:
5am CDT Oct 16, 2025-6pm CDT Oct 22, 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