Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Hazardous Weather Conditions

For More Weather Information:

Marquette, MI Local Forecast Office

8NM E Copper Harbor MI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 20 °F
NW 15kt
2ft
Tonight
Low: 8 °F
NW 25kt
7ft

Small Craft Advisory
Thursday
High: 11 °F
WNW 25kt
7ft

Small Craft Advisory
Thursday Night
Low: -5 °F
NW 25kt
8-9ft
Friday
High: 3 °F
NW 25kt
9ft
Friday Night
Low: 1 °F
NW 20kt
6ft
Saturday
High: 8 °F
WNW 10kt
1-3ft
Saturday Night
Low: 6 °F
WSW 10kt
1ft
Sunday
High: 13 °F
W 10kt
1-2ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:13 pm CST Jan 21, 2026
Forecast Valid: 5pm CST Jan 21, 2026-6pm CST Jan 28, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

NW wind around 15 kt. Snow showers. Waves around 2 ft.

Tonight

NW wind 20 to 25 kt, with gusts as high as 30 kt. Snow showers likely, mainly after 1am. Widespread freezing spray after 9pm. Waves 3 ft building to 7 ft.

Thursday

WNW wind 20 to 25 kt, with gusts as high as 35 kt. Snow showers likely. Widespread freezing spray. Waves around 7 ft.

Thursday Night

NW wind around 25 kt, with gusts as high as 35 kt. Snow showers. Areas of dense fog before 9pm. Areas of dense freezing fog between 9pm and 10pm. Widespread freezing spray. Waves 8 to 9 ft.

Friday

NW wind 20 to 25 kt, with gusts as high as 35 kt. Snow showers likely. Widespread freezing spray. Waves 9 ft subsiding to 6 ft.

Friday Night

NW wind 15 to 20 kt, with gusts as high as 25 kt. Snow showers likely, mainly before midnight. Widespread freezing spray before 11pm. Waves 6 ft subsiding to 3 ft.

Saturday

WNW wind around 10 kt becoming WSW in the afternoon. Winds could gust as high as 20 kt. A chance of snow showers. Waves 1 to 3 ft.

Saturday Night

WSW wind around 10 kt. A chance of snow showers. Waves around 1 ft.

Sunday

W wind around 10 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 1 to 2 ft.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.