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Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday

Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >

Coastal Waters Forecast for Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park (LSZ263) (Text-Only)
NWS Forecast for: Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park (LSZ263)
Issued by: National Weather Service Marquette, MI
Last Update: 1000 AM EST Mon Jan 12 2026		Print



Rest Of Today: West winds 15 to 25 knots diminishing to 10 to 20 knots by mid afternoon. Waves 3 to 6 feet occasionally to 8 feet subsiding to 2 to 4 feet.

Tonight: Southwest winds 5 to 15 knots increasing to 10 to 20 knots by midnight. A chance of rain showers, possibly mixed with snow after midnight. Waves subsiding to 1 to 3 feet, then building to 2 to 4 feet.

Tuesday: Southwest winds 15 to 25 knots veering west. A chance of rain showers, possibly mixed with snow. Waves building to 3 to 6 feet occasionally to 8 feet.

Tuesday Night: North gales to 45 knots. Heavy freezing spray. Rain showers likely in the evening. A chance of snow showers. Waves building to 12 to 17 feet occasionally to 21 feet.

Wednesday: North gales to 45 knots diminishing to 20 to 30 knots in the afternoon. A slight chance of snow showers in the morning. Heavy freezing spray. Waves subsiding to 5 to 8 feet occasionally to 10 feet.

Wednesday Night: North winds 15 to 25 knots diminishing to 10 to 20 knots after midnight. Freezing spray in the evening. Waves subsiding to 1 to 3 feet.

Thursday: Southwest winds 20 to 30 knots. A chance of snow showers. Waves subsiding to calm to 2 feet, then building to 3 to 6 feet occasionally to 8 feet.

Friday: Northwest winds 20 to 30 knots veering north. A chance of snow showers. Waves subsiding to 1 to 3 feet, then building to 3 to 6 feet occasionally to 8 feet.

note, wave height forecasts are for ice free areas.






Zone Forecast: Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park (LSZ263)

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