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Marquette, MI Local Forecast Office

21NM E Grand Marais MI

Marine Point Forecast

[NOTICE]

Wednesday
High: 60 °F
N 10kt
1-2ft
Wednesday Night
Low: 54 °F
NNE 20kt
2-3ft
Thursday
High: 62 °F
NNE 20kt
3ft
Thursday Night
Low: 52 °F
WNW 10kt
1-2ft
Friday
High: 69 °F
Light Wind
< 1ft
Friday Night
Low: 56 °F
Light Wind
< 1ft
Saturday
High: 67 °F
NNW 10kt
< 1ft
Saturday Night
Low: 53 °F
NW 10kt
< 1ft
Sunday
High: 66 °F
NNW 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: 2:10 am CDT Jul 16, 2025
Forecast Valid: 2am CDT Jul 16, 2025-6pm CDT Jul 22, 2025

View Nearby Observations

Detailed Forecast

Wednesday

WNW wind 5 to 10 kt becoming N in the afternoon. A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms after 4pm. Waves 1 to 2 ft.

Wednesday Night

NNE wind 15 to 20 kt. A chance of showers and thunderstorms, then showers likely after 1am. Waves 2 to 3 ft.

Thursday

NNE wind 15 to 20 kt becoming NW in the afternoon. A chance of showers, mainly before 7am. Waves around 3 ft.

Thursday Night

WNW wind 5 to 10 kt becoming SW after midnight. Mostly clear. Waves 1 to 2 ft.

Friday

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

Friday Night

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

Saturday

S wind 5 to 10 kt becoming NNW in the afternoon. Mostly sunny. Waves 1 ft or less.

Saturday Night

NW wind 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.

Sunday

NNW wind 5 to 10 kt. Mostly 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.