Areas of Severe Thunderstorms and Heat

Scattered severe thunderstorms and excessive rainfall are possible today in the Mid Atlantic, posing a risk for damaging winds and isolated flash flooding. Extreme Heat Warnings are in effect today for northeast Texas into southern Oklahoma and Arkansas. Extreme Heat Warnings are also in effect for the Desert Southwest today into Sunday. Read More >

For More Weather Information:

Grand Rapids, MI Local Forecast Office

3NM SSW South Haven MI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 79 °F
N 8kt
< 1ft
Tonight
Low: 58 °F
Light Wind
< 1ft
Friday
High: 79 °F
SSW 7kt
< 1ft
Friday Night
Low: 64 °F
Light Wind
< 1ft
Saturday
High: 75 °F
NW 12kt
< 1ft
Saturday Night
Low: 59 °F
N 8kt
< 1ft
Sunday
High: 73 °F
NNW 14kt
< 1ft
Sunday Night
Low: 56 °F
NNW 8kt⇓
< 1ft
Monday
High: 74 °F
⇑NW 6kt
< 1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 12:03 pm CDT Aug 20, 2026
Forecast Valid: 1pm CDT Aug 20, 2026-6pm CDT Aug 26, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

N wind 6 to 8 kt. Sunny. Waves 1 ft or less.

Tonight

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

Friday

SSE wind 5 to 7 kt becoming SW in the afternoon. Mostly sunny. Waves 1 ft or less.

Friday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Waves 1 ft or less.

Saturday

W wind 7 to 12 kt becoming NW in the morning. Winds could gust as high as 21 kt. A slight chance of showers before 1pm. Waves 1 ft or less.

Saturday Night

N wind 6 to 8 kt. Mostly clear. Waves 1 ft or less.

Sunday

NNW wind 7 to 14 kt, with gusts as high as 23 kt. Sunny. Waves 1 ft or less.

Sunday Night

NNW wind 5 to 8 kt becoming variable and less than 5 kt in the evening. Mostly clear. Waves 1 ft or less.

Monday

Variable winds less than 5 kt becoming NW around 6 kt in the afternoon. 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.