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Marquette, MI Local Forecast Office

5NM NE Ontonagon MI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 51 °F
Light Wind
1ft
Tonight
Low: 45 °F
SSE 10kt
< 1ft
Tuesday
High: 64 °F
S 15kt
1ft

Small Craft Advisory
Tuesday Night
Low: 53 °F
W 15kt
2ft

Small Craft Advisory
Wednesday
High: 58 °F
W 15kt
2-3ft
Wednesday Night
Low: 49 °F
W 15kt
3ft
Thursday
High: 55 °F
WNW 15kt
2-3ft
Thursday Night
Low: 45 °F
W 10kt
1-2ft
Friday
High: 55 °F
W 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: 1:04 pm CDT Oct 5, 2026
Forecast Valid: 1pm CDT Oct 5, 2026-6pm CDT Oct 11, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

Variable winds 5 kt or less. Sunny. Waves around 1 ft.

Tonight

E wind 5 to 10 kt becoming S after midnight. Winds could gust as high as 20 kt. A chance of showers, mainly between midnight and 3am. Waves 1 ft or less.

Tuesday

S wind 10 to 15 kt becoming W in the afternoon. Winds could gust as high as 20 kt. Partly sunny. Waves around 1 ft.

Tuesday Night

W wind 10 to 15 kt. Partly cloudy. Waves around 2 ft.

Wednesday

W wind around 15 kt, with gusts as high as 25 kt. Sunny. Waves 2 to 3 ft.

Wednesday Night

W wind around 15 kt. Mostly clear. Waves around 3 ft.

Thursday

WNW wind 10 to 15 kt, with gusts as high as 25 kt. Sunny. Waves 2 to 3 ft.

Thursday Night

W wind around 10 kt. Partly cloudy. Waves 1 to 2 ft.

Friday

W wind 5 to 10 kt, with gusts as high as 15 kt. Mostly sunny. 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.