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Marquette, MI Local Forecast Office

21NM W Ontonagon MI

Marine Point Forecast

[NOTICE]

Tonight
Low: 49 °F
Light Wind
< 1ft
Juneteenth
High: 60 °F
NE 10kt
< 1ft
Thursday Night
Low: 50 °F
ENE 10kt
1ft
Friday
High: 66 °F
Light Wind
< 1ft
Friday Night
Low: 61 °F
SSE 10kt
< 1ft
Saturday
High: 70 °F
S 10kt
< 1ft
Saturday Night
Low: 60 °F
ENE 10kt
< 1ft
Sunday
High: 77 °F
S 10kt
< 1ft
Sunday Night
Low: 60 °F
SSW 10kt
1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 6:10 pm CDT Jun 18, 2025
Forecast Valid: 8pm CDT Jun 18, 2025-6pm CDT Jun 25, 2025

View Nearby Observations

Detailed Forecast

Tonight

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

Juneteenth

NE wind 5 to 10 kt. A chance of showers, mainly between 1pm and 3pm. Waves 1 ft or less.

Thursday Night

ENE wind 5 to 10 kt becoming SE after midnight. Showers and thunderstorms likely before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Waves around 1 ft.

Friday

Variable winds 5 kt or less. A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am. Waves 1 ft or less.

Friday Night

E wind 5 to 10 kt becoming SSE after midnight. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Waves 1 ft or less.

Saturday

S wind 5 to 10 kt becoming ENE in the afternoon. A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Waves 1 ft or less.

Saturday Night

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

Sunday

S wind around 10 kt, with gusts as high as 20 kt. Mostly sunny. Waves 1 ft or less.

Sunday Night

SSW wind around 10 kt, with gusts as high as 20 kt. A chance of showers. Waves around 1 ft.

*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.