Station Name: 9099090 - Grand Marais, MN
Station Type: Fixed
Data Source: National Data Buoy Center

Elevation Above Sea Level: 617 feet

Nearest Address:
391 MN-61
Grand Marais, MN 55604
Cook County

GPS Coordinates: 47.749, -90.341

Nearby Water Temperatures

Extreme Cold Warning issued January 21 at 1:04PM CST until January 23 at 11:00AM CST by NWS Duluth MN

Effective: Wed January 21, 2026, 1:04 PM
Expires: Thu January 22, 2026, 7:15 AM

* WHAT...For the Cold Weather Advisory, very cold wind chills as low as 40 degrees below zero expected. For the Extreme Cold Warning, dangerously cold wind chills 40 to 55 degrees below zero expected. For the Extreme Cold Watch, dangerously cold wind chills as low as 45 degrees below zero possible. * WHERE...Crow Wing, Aitkin, Cass, Itasca, Carlton, South and Central St. Louis, Southern Cook and Southern Lake Counties. This includes the Tribal Lands of the Grand Portage Reservation, the Fond du Lac Band, the Mille Lacs Band, Big Sandy Lake and, East Lake areas and the Bois Forte Band, Deer Creek and, Lake Vermilion areas. * WHEN...For the Cold Weather Advisory, from midnight tonight to 3 PM CST Thursday. For the Extreme Cold Warning, from 3 PM Thursday to 11 AM CST Friday. For the Extreme Cold Watch, from Friday morning through Saturday morning. * IMPACTS...The dangerously cold wind chills colder than 50 below zero could cause frostbite on exposed skin in as little as 5 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.

Cold Weather Advisory issued January 21 at 1:04PM CST until January 22 at 3:00PM CST by NWS Duluth MN

Effective: Wed January 21, 2026, 1:04 PM
Expires: Thu January 22, 2026, 7:15 AM

* WHAT...For the Cold Weather Advisory, very cold wind chills as low as 40 degrees below zero expected. For the Extreme Cold Warning, dangerously cold wind chills 40 to 55 degrees below zero expected. For the Extreme Cold Watch, dangerously cold wind chills as low as 45 degrees below zero possible. * WHERE...Crow Wing, Aitkin, Cass, Itasca, Carlton, South and Central St. Louis, Southern Cook and Southern Lake Counties. This includes the Tribal Lands of the Grand Portage Reservation, the Fond du Lac Band, the Mille Lacs Band, Big Sandy Lake and, East Lake areas and the Bois Forte Band, Deer Creek and, Lake Vermilion areas. * WHEN...For the Cold Weather Advisory, from midnight tonight to 3 PM CST Thursday. For the Extreme Cold Warning, from 3 PM Thursday to 11 AM CST Friday. For the Extreme Cold Watch, from Friday morning through Saturday morning. * IMPACTS...The dangerously cold wind chills colder than 50 below zero could cause frostbite on exposed skin in as little as 5 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.

Extreme Cold Watch issued January 21 at 1:04PM CST until January 24 at 12:00PM CST by NWS Duluth MN

Effective: Wed January 21, 2026, 1:04 PM
Expires: Thu January 22, 2026, 7:15 AM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills 40 to 55 degrees below zero expected. For the Extreme Cold Watch, dangerously cold wind chills as low as 45 degrees below zero possible. * WHERE...Koochiching, North St. Louis, and Northern Cook and Lake Counties. This includes the Tribal Lands of the Bois Forte Band, Nett Lake area. Other locations including Voyageurs National Park. The entire Boundary Waters is also included. * WHEN...For the Extreme Cold Warning, from midnight tonight to 11 AM CST Friday. For the Extreme Cold Watch, from Friday morning through Saturday morning. * IMPACTS...The dangerously cold wind chills colder than 50 degrees below zero could cause frostbite on exposed skin in as little as 5 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.

Extreme Cold Watch issued January 21 at 1:04PM CST until January 24 at 12:00PM CST by NWS Duluth MN

Effective: Wed January 21, 2026, 1:04 PM
Expires: Thu January 22, 2026, 7:15 AM

* WHAT...For the Cold Weather Advisory, very cold wind chills as low as 40 degrees below zero expected. For the Extreme Cold Warning, dangerously cold wind chills 40 to 55 degrees below zero expected. For the Extreme Cold Watch, dangerously cold wind chills as low as 45 degrees below zero possible. * WHERE...Crow Wing, Aitkin, Cass, Itasca, Carlton, South and Central St. Louis, Southern Cook and Southern Lake Counties. This includes the Tribal Lands of the Grand Portage Reservation, the Fond du Lac Band, the Mille Lacs Band, Big Sandy Lake and, East Lake areas and the Bois Forte Band, Deer Creek and, Lake Vermilion areas. * WHEN...For the Cold Weather Advisory, from midnight tonight to 3 PM CST Thursday. For the Extreme Cold Warning, from 3 PM Thursday to 11 AM CST Friday. For the Extreme Cold Watch, from Friday morning through Saturday morning. * IMPACTS...The dangerously cold wind chills colder than 50 below zero could cause frostbite on exposed skin in as little as 5 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.

Extreme Cold Warning issued January 21 at 1:04PM CST until January 23 at 11:00AM CST by NWS Duluth MN

Effective: Wed January 21, 2026, 1:04 PM
Expires: Thu January 22, 2026, 7:15 AM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills 40 to 55 degrees below zero expected. For the Extreme Cold Watch, dangerously cold wind chills as low as 45 degrees below zero possible. * WHERE...Koochiching, North St. Louis, and Northern Cook and Lake Counties. This includes the Tribal Lands of the Bois Forte Band, Nett Lake area. Other locations including Voyageurs National Park. The entire Boundary Waters is also included. * WHEN...For the Extreme Cold Warning, from midnight tonight to 11 AM CST Friday. For the Extreme Cold Watch, from Friday morning through Saturday morning. * IMPACTS...The dangerously cold wind chills colder than 50 degrees below zero could cause frostbite on exposed skin in as little as 5 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.