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Marquette, MI Local Forecast Office

24NM W Ontonagon MI

Marine Point Forecast

[NOTICE]

Sunday
High: 52 °F
S 15kt
< 1ft
Sunday Night
Low: 38 °F
SSW 15kt
1-2ft
Monday
High: 45 °F
Light Wind
< 1ft
Monday Night
Low: 38 °F
ENE 10kt
1-2ft
Tuesday
High: 42 °F
N 10kt
1-2ft
Tuesday Night
Low: 37 °F
Light Wind
2ft
Wednesday
High: 45 °F
ENE 10kt
2ft
Wednesday Night
Low: 39 °F
Light Wind
1-2ft
Thursday
High: 50 °F
Light Wind
< 1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:12 am CDT Apr 12, 2026
Forecast Valid: 4am CDT Apr 12, 2026-6pm CDT Apr 18, 2026

View Nearby Observations

Detailed Forecast

Sunday

SSE wind 10 to 15 kt becoming SSW in the afternoon. A chance of showers and thunderstorms, mainly after 1pm. Waves 1 ft or less.

Sunday Night

SSW wind 10 to 15 kt becoming W after midnight. A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 1am. Waves 1 to 2 ft.

Monday

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

Monday Night

ENE wind around 10 kt. Showers and possibly a thunderstorm before 1am, then a chance of showers. Waves 1 to 2 ft.

Tuesday

ENE wind 5 to 10 kt becoming NNW in the afternoon. Mostly cloudy. Waves 1 to 2 ft.

Tuesday Night

Variable winds 5 kt or less. Mostly cloudy. Waves around 2 ft.

Wednesday

ENE wind 5 to 10 kt. A chance of showers after 1pm. Waves around 2 ft.

Wednesday Night

Variable winds 5 kt or less. A chance of showers. Waves 1 to 2 ft.

Thursday

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.