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13NM SSW Isle Royale National Park MI

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 12:42 am CDT Jul 21, 2025
Forecast Valid: 1am CDT Jul 21, 2025-6pm CDT Jul 27, 2025

Monday

SSE wind 5 to 10 kt becoming E in the afternoon. Mostly sunny. Waves 1 ft or less.

Monday Night

E wind around 10 kt becoming S after midnight. Mostly cloudy. Waves 1 ft or less.

Tuesday

S wind 5 to 10 kt becoming SE in the afternoon. A slight chance of showers after 1pm. Waves 1 ft or less.

Tuesday Night

ESE wind around 10 kt becoming SSW after midnight. Showers and possibly a thunderstorm. Waves 1 ft or less.

Wednesday

WSW wind 5 to 10 kt. A chance of showers, with thunderstorms also possible after 1pm. Waves 1 ft or less.

Wednesday Night

Variable winds 5 kt or less. A chance of showers before 1am. Waves 1 ft or less.

Thursday

Variable winds 5 kt or less. A chance of showers after 1pm. Waves 1 ft or less.

Thursday Night

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

Friday

Variable winds 5 kt or less. Partly sunny. Waves 1 ft or less.

*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.