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Western Lake Superior

Forecast

Marine Forecast

Issued 06:30 PM EDT 08 July 2026

Tonight and Thursday.

Wind light tonight and Thursday.

Fog patches.

Waves

Issued 06:30 PM EDT 08 July 2026
Tonight and Thursday. Waves 0.5 metres or less.

Extended Forecast

Issued 06:30 PM EDT 08 July 2026
Friday Wind light.
Saturday Wind light.
Sunday Wind light becoming southwest 15 knots.

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Map of Great Lakes - Lake Superior marine weather areas Kenora Airport Pukaskwa National Park Royal Island Armstrong Airport Caribou Island Marathon Airport Thunder Bay Airport Welcome Island Little Flatland Island Sault Ste. Marie Airport Wawa Airport Slate Island - 45136 Lake Of the Woods - 45148
Legend:
buoy Buoy
land station Land Station
Ice Conditions

*Ice Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 8 July 2026 Tonight and Thursday At 6:30 p.m. EDT tonight cold front located on a line east-west
over Lake Nipissing.
By 6:30 p.m. EDT Thursday cold front located on a line east-west
over Lake Ontario.

At 6:30 p.m. EDT tonight ridge located on a line north-south
over Manitoba.
By 6:30 p.m. EDT Thursday ridge located on a line north-south over
northwestern Ontario.

Great Lakes - Lake Superior Area

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