For More Weather Information:

25NM WSW Ontonagon MI

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 10:08 am CDT Aug 17, 2026
Forecast Valid: 12pm CDT Aug 17, 2026-6pm CDT Aug 23, 2026

This Afternoon

Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

Tonight

SSW wind 5 to 10 kt becoming W after midnight. A chance of showers and thunderstorms before 1am, then a slight chance of showers. Waves 1 ft or less.

Tuesday

W wind 5 to 10 kt. Mostly cloudy, then gradually becoming sunny. Waves 1 ft or less.

Tuesday Night

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

Wednesday

Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

Wednesday Night

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

Thursday

Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

Thursday Night

SE wind 5 to 10 kt becoming SW after midnight. A chance of showers. Waves 1 ft or less.

Friday

WSW wind 5 to 10 kt, with gusts as high as 20 kt. A chance of showers. 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.