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Marquette, MI Local Forecast Office

28NM W Ontonagon MI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 54 °F
WSW 15kt
2ft
Tonight
Low: 43 °F
SW 15kt
2-3ft
Saturday
High: 50 °F
WSW 15kt
1-2ft
Saturday Night
Low: 38 °F
ENE 10kt
< 1ft
Sunday
High: 50 °F
⇑ENE 20kt
6ft
Sunday Night
Low: 40 °F
ENE 20kt
6ft
Monday
High: 50 °F
NE 15kt
2-4ft
Monday Night
Low: 38 °F
ENE 20kt
9ft
Tuesday
High: 47 °F
N 20kt
11ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 5:19 pm CDT May 15, 2026
Forecast Valid: 5pm CDT May 15, 2026-6pm CDT May 22, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

WSW wind around 15 kt, with gusts as high as 20 kt. Sunny. Waves around 2 ft.

Tonight

SW wind 10 to 15 kt, with gusts as high as 20 kt. Mostly clear. Waves 2 to 3 ft.

Saturday

WSW wind 10 to 15 kt. Sunny. Waves 1 to 2 ft.

Saturday Night

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

Sunday

ENE wind 10 to 15 kt increasing to 15 to 20 kt in the afternoon. Winds could gust as high as 25 kt. Showers likely and possibly a thunderstorm, mainly after 4pm. Waves 1 ft building to 6 ft.

Sunday Night

ENE wind 10 to 20 kt becoming SE after midnight. Showers before 7pm, then showers and possibly a thunderstorm between 7pm and 1am, then showers after 1am. Waves 6 ft subsiding to 3 ft.

Monday

S wind 10 to 15 kt becoming NE in the afternoon. Winds could gust as high as 25 kt. Showers. Waves 2 to 4 ft.

Monday Night

ENE wind 15 to 20 kt, with gusts as high as 25 kt. Showers and possibly a thunderstorm. Waves 5 ft building to 9 ft.

Tuesday

N wind around 20 kt becoming W in the afternoon. Winds could gust as high as 25 kt. A chance of showers. Waves 11 ft subsiding to 6 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.