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3NM SE Isle Royale National Park MI

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 4:26 pm CDT Aug 4, 2025
Forecast Valid: 7pm CDT Aug 4, 2025-6pm CDT Aug 11, 2025

Tonight

Variable winds 5 kt or less. Mostly cloudy. Waves 1 ft or less.

Tuesday

E wind 5 to 10 kt. Widespread haze before noon, then Widespread haze after 3pm. Areas of smoke between noon and 3pm. Waves 1 ft or less.

Tuesday Night

E wind around 10 kt becoming SE after midnight. Widespread haze before 5am. Areas of smoke after 5am. Waves around 1 ft.

Wednesday

SE wind around 10 kt. Widespread haze before 7am. Waves 1 to 2 ft.

Wednesday Night

SE wind 10 to 15 kt becoming S after midnight. A chance of showers and thunderstorms after 1am. Waves around 2 ft.

Thursday

S wind around 10 kt. Partly sunny. Waves 1 to 2 ft.

Thursday Night

SSW wind 5 to 10 kt. Mostly cloudy. Waves around 1 ft.

Friday

SSW wind 5 to 10 kt. A chance of showers and thunderstorms before 1pm. Waves around 1 ft.

Friday Night

S wind around 10 kt. A chance of showers and thunderstorms. Waves around 1 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.