For More Weather Information:

22NM W Ontonagon MI

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 3:18 am CDT Aug 18, 2026
Forecast Valid: 3am CDT Aug 18, 2026-6pm CDT Aug 24, 2026

Tuesday

W wind 5 to 10 kt becoming NW in the morning. 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

W wind 5 to 10 kt. 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. A chance of showers, mainly after 1pm. Waves 1 ft or less.

Thursday Night

Variable winds 5 kt or less. Showers likely, mainly before 1am. Waves 1 ft or less.

Friday

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

Friday Night

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

Saturday

NW wind 5 to 10 kt. Mostly 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.