Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

For More Weather Information:

Grand Rapids, MI Local Forecast Office

6NM W Grand Haven MI

Marine Point Forecast

[NOTICE]

Thursday
High: 75 °F
NW 10kt
< 1ft
Thursday Night
Low: 69 °F
NW 9kt
< 1ft
Friday
High: 75 °F
SSW 12kt
1ft
Friday Night
Low: 68 °F
SSW 11kt
1ft
Saturday
High: 72 °F
NW 20kt
5ft
Saturday Night
Low: 65 °F
N 16kt
2-3ft
Sunday
High: 70 °F
NNW 23kt
3-5ft
Sunday Night
Low: 63 °F
NNW 16kt
3ft
Monday
High: 72 °F
WNW 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: 2:36 am CDT Aug 20, 2026
Forecast Valid: 4am CDT Aug 20, 2026-6pm CDT Aug 26, 2026

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Detailed Forecast

Thursday

ENE wind 5 to 10 kt becoming NW in the afternoon. Sunny. Waves 1 ft or less.

Thursday Night

NW wind 5 to 9 kt becoming SE after midnight. Mostly clear. Waves 1 ft or less.

Friday

SSW wind around 12 kt. Partly sunny. Waves around 1 ft.

Friday Night

SSW wind around 11 kt becoming WSW after midnight. A slight chance of showers and thunderstorms before 10pm, then showers likely and possibly a thunderstorm between 10pm and 4am, then showers likely after 4am. Waves around 1 ft.

Saturday

NW wind 15 to 20 kt, with gusts as high as 26 kt. Mostly sunny. Waves 2 ft building to 5 ft.

Saturday Night

N wind 13 to 16 kt. Mostly clear. Waves 2 to 3 ft.

Sunday

NNW wind 16 to 23 kt, with gusts as high as 29 kt. Sunny. Waves 3 to 5 ft.

Sunday Night

NNW wind 7 to 16 kt becoming NE after midnight. Mostly clear. Waves 3 ft subsiding to 1 ft or less.

Monday

NE wind 7 to 10 kt becoming WNW 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.