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13NM WSW Ontonagon MI

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 3:18 am CDT Sep 19, 2026
Forecast Valid: 5am CDT Sep 19, 2026-6pm CDT Sep 25, 2026

Today

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

Tonight

Variable winds less than 5 kt becoming NNE 5 to 10 kt after midnight. A slight chance of showers after 3am. Waves 1 ft or less.

Sunday

NE wind around 15 kt, with gusts as high as 25 kt. A chance of showers, mainly between 8am and 10am. Waves 2 ft building to 5 ft.

Sunday Night

E wind 5 to 10 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 1 to 3 ft.

Monday

E wind 5 to 10 kt becoming NE in the afternoon. Winds could gust as high as 20 kt. Mostly sunny. Waves around 1 ft.

Monday Night

ENE wind 5 to 10 kt becoming SE after midnight. Winds could gust as high as 15 kt. Mostly clear. Waves 1 ft or less.

Tuesday

SE wind 5 to 10 kt becoming NE in the afternoon. Sunny. Waves 1 ft or less.

Tuesday Night

ENE wind 5 to 10 kt becoming SSE after midnight. Mostly clear. Waves 1 ft or less.

Wednesday

SSE wind 5 to 10 kt becoming NE in the afternoon. 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.