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Marquette, MI Local Forecast Office

25NM WSW Ontonagon MI

Marine Point Forecast

[NOTICE]

Overnight
Low: 32 °F
Light Wind
1ft
Monday
High: 38 °F
ENE 15kt
1-3ft

Small Craft Advisory
Monday Night
Low: 33 °F
ENE 15kt
2-4ft

Small Craft Advisory
Tuesday
High: 35 °F
NNE 15kt
2-4ft
Tuesday Night
Low: 25 °F
N 15kt
3-4ft
Wednesday
High: 32 °F
N 10kt
2-3ft
Wednesday Night
Low: 26 °F
E 10kt
1-2ft
Thursday
High: 36 °F
ENE 20kt
2-4ft
Thursday Night
Low: 30 °F
E 20kt
4ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 10:08 pm CDT Mar 29, 2026
Forecast Valid: 11pm CDT Mar 29, 2026-6pm CDT Apr 5, 2026

View Nearby Observations

Detailed Forecast

Overnight

Variable winds 5 kt or less. Partly cloudy. Waves around 1 ft.

Monday

ENE wind 10 to 15 kt. Mostly cloudy. Waves 1 to 3 ft.

Monday Night

ENE wind 10 to 15 kt. A chance of showers after 1am. Waves 2 to 4 ft.

Tuesday

ENE wind 10 to 15 kt becoming N in the afternoon. A chance of rain showers before 10am, then a chance of rain and snow showers between 10am and 4pm, then a slight chance of snow showers after 4pm. Waves 2 to 4 ft.

Tuesday Night

N wind 10 to 15 kt. Mostly cloudy. Waves 3 to 4 ft.

Wednesday

N wind around 10 kt becoming ENE in the afternoon. Partly sunny. Waves 2 to 3 ft.

Wednesday Night

E wind around 10 kt, with gusts as high as 15 kt. Mostly cloudy. Waves 1 to 2 ft.

Thursday

ENE wind 15 to 20 kt. A chance of snow showers. Waves 2 to 4 ft.

Thursday Night

E wind 15 to 20 kt. A chance of snow showers. Waves around 4 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.