Station Name: Grand Marais
Data Source: USGS

Elevation Above Sea Level: 607 feet / 185 meters

Nearest Address:
2nd Street
Grand Marais, MN 55604
Cook County

GPS Coordinates: 47.7517, -90.3283

Nearby Water Temperatures

Heat Advisory issued June 21 at 12:28AM CDT until June 22 at 9:00PM CDT by NWS Duluth MN

Effective: Sat June 21, 2025, 12:28 AM
Expires: Sat June 21, 2025, 5:00 PM

* WHAT...Hot conditions with heat index values up to between 95 and 99 expected expected during the afternoon into early evening both today and Sunday. * WHERE...Koochiching, North Itasca, Carlton, St. Louis, and Northern Cook and Lake Counties. This includes the Tribal Lands of the Fond du Lac Band and the Bois Forte Band, Nett Lake, Deer Creek and, Lake Vermilion areas. Other locations including Voyageurs National Park. The entire Boundary Waters is also included. * WHEN...From noon today to 9 PM CDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

Heat Advisory issued June 21 at 12:28AM CDT until June 22 at 9:00PM CDT by NWS Duluth MN

Effective: Sat June 21, 2025, 12:28 AM
Expires: Sat June 21, 2025, 5:00 PM

* WHAT...Hot conditions with heat index values up to between 95 and 99 expected expected during the afternoon into early evening both today and Sunday. * WHERE...Koochiching, North Itasca, Carlton, St. Louis, and Northern Cook and Lake Counties. This includes the Tribal Lands of the Fond du Lac Band and the Bois Forte Band, Nett Lake, Deer Creek and, Lake Vermilion areas. Other locations including Voyageurs National Park. The entire Boundary Waters is also included. * WHEN...From noon today to 9 PM CDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

Flood Advisory issued June 21 at 4:57AM CDT until June 21 at 1:30PM CDT by NWS Duluth MN

Effective: Sat June 21, 2025, 4:57 AM
Expires: Sat June 21, 2025, 1:30 PM

* WHAT...Small stream flooding continues that was caused by excessive rainfall that fell Friday night. * WHERE...Southwest Cook, central and southern Lake and east-central St. Louis Counties. * WHEN...Until 130 PM CDT Saturday. * IMPACTS...River or stream flows are elevated. Flooding is occurring on area rivers that are popular for waterfall viewing. * ADDITIONAL DETAILS... - At 455 AM CDT Saturday, Doppler radar and automated rain gauges show heavy rain that fell Friday night into early Saturday morning. This will cause small stream flooding. Rapid river rises will cause minor flooding in the advisory area. Between 2 and 4 inches of rain fell Friday night into early Saturday morning. - Flooding impacts will continue, but no additional rainfall is expected. - Some locations that will experience flooding include... Silver Bay, Babbitt, Clear Lake, Lutsen, Tofte, Dumbbell Lake, Forest Center, Isabella, Finland, George Manitou State Park, Snowbank Lake, Little Marais, southeastern Boundary Waters Canoe Area Wilderness, Tettegouche State Park, Sugar Loaf Cove, Illgen City, Whyte, Taconite Harbor and Temperance River State Park. - Flood safety information can be found at www.weather.gov/safety/flood.

Be especially cautious at night when it is harder to recognize the dangers of flooding. Visitors to area waterfalls should be careful around rivers that will have slippery rocks, cliffs, and strong currents.

avertissement de grains changé

Service Notice – April 2025: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2025, changes are expected to include... 1) ECCC's initiative to upgrade the presentation of alerts into Colour-Coded Weather Alerts is planned for deployment for later in 2025. Data changes will appear in CAP-CP upon this deployment, and 2) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – avril 2025: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2025, il y aura des changements incluant... 1) l'initiative d'ECCC visant à améliorer la présentation des alertes sous forme d'alertes météorologiques codées par couleur est prévue d’être déployée plus tard en 2025. Des changements aux données apparaîtront dans le PC-PAC lors de ce déploiement, et 2) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/

Effective: Sat June 21, 2025, 4:23 AM
Expires: Sat June 21, 2025, 4:23 AM

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avertissement de grains en vigueur

Service Notice – April 2025: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2025, changes are expected to include... 1) ECCC's initiative to upgrade the presentation of alerts into Colour-Coded Weather Alerts is planned for deployment for later in 2025. Data changes will appear in CAP-CP upon this deployment, and 2) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – avril 2025: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2025, il y aura des changements incluant... 1) l'initiative d'ECCC visant à améliorer la présentation des alertes sous forme d'alertes météorologiques codées par couleur est prévue d’être déployée plus tard en 2025. Des changements aux données apparaîtront dans le PC-PAC lors de ce déploiement, et 2) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/

Effective: Sat June 21, 2025, 3:05 AM
Expires: Sat June 21, 2025, 7:03 AM

Squalls with wind gusts up to 40 knots, frequent lightning and hail of 1 to 2 centimetres are expected or occurring in the area. As of 3:50 a.m. EDT, this line of thunderstorms is located from 15 nautical miles southwest of Suomi to 27 nautical miles south of Pigeon River, moving northeast at 40 knots. ### Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

Mariners are advised to prepare for squalls. If underway, seek safe harbour immediately.