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Detroit/Pontiac, MI Local Forecast Office

3NM SSW Algonac MI

Marine Point Forecast

[NOTICE]

Tonight
Low: 51 °F
SSE 13kt
< 1ft
Wednesday
High: 59 °F
W 13kt
< 1ft
Wednesday Night
Low: 44 °F
NW 13kt
< 1ft
Thursday
High: 62 °F
N 11kt
< 1ft
Thursday Night
Low: 45 °F
NNE 6kt⇓
< 1ft
Friday
High: 68 °F
⇑SSW 10kt
< 1ft
Friday Night
Low: 54 °F
S 11kt
< 1ft
Saturday
High: 81 °F
SSW 12kt
< 1ft
Saturday Night
Low: 53 °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: 4:24 pm EDT May 12, 2026
Forecast Valid: 6pm EDT May 12, 2026-6pm EDT May 19, 2026

View Nearby Observations

Detailed Forecast

Tonight

SSE wind 10 to 13 kt becoming SW after midnight. Winds could gust as high as 24 kt. Showers and thunderstorms before 2am, then showers likely. Waves 1 ft or less.

Wednesday

W wind 10 to 13 kt, with gusts as high as 22 kt. Increasing clouds. Waves 1 ft or less.

Wednesday Night

NW wind 10 to 13 kt, with gusts as high as 20 kt. Cloudy. Waves 1 ft or less.

Thursday

N wind around 11 kt, with gusts as high as 19 kt. Mostly cloudy, then gradually becoming sunny. Waves 1 ft or less.

Thursday Night

NNE wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly clear. Waves 1 ft or less.

Friday

Variable winds less than 5 kt becoming SSW 5 to 10 kt in the afternoon. Partly sunny. Waves 1 ft or less.

Friday Night

S wind around 11 kt. Mostly cloudy. Waves 1 ft or less.

Saturday

SSW wind 8 to 12 kt, with gusts as high as 18 kt. Mostly sunny. Waves 1 ft or less.

Saturday Night

W wind 5 to 10 kt becoming N after midnight. Partly cloudy. 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.