Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

For More Weather Information:

Grand Rapids, MI Local Forecast Office

South Haven MI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 67 °F
SSW 10kt
< 1ft
Tonight
Low: 52 °F
S 7kt
< 1ft
Thursday
High: 61 °F
WSW 9kt
< 1ft
Thursday Night
Low: 44 °F
Light Wind
< 1ft
Friday
High: 70 °F
⇑S 7kt
< 1ft
Friday Night
Low: 49 °F
SSE 12kt
< 1ft
Saturday
High: 62 °F
S 13kt
< 1ft
Saturday Night
Low: 36 °F
W 13kt
< 1ft
Sunday
High: 46 °F
WNW 14kt
< 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 Apr 15, 2026
Forecast Valid: 12pm CDT Apr 15, 2026-6pm CDT Apr 21, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

SSW wind around 10 kt, with gusts as high as 18 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Waves 1 ft or less.

Tonight

S wind around 7 kt. Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers after 4am. Waves 1 ft or less.

Thursday

SSW wind 6 to 9 kt becoming W in the afternoon. A chance of showers before 7am, then showers likely and possibly a thunderstorm between 7am and 4pm, then showers likely after 4pm. Waves 1 ft or less.

Thursday Night

Variable winds 5 kt or less. A slight chance of showers before 1am. Waves 1 ft or less.

Friday

Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. Partly sunny. Waves 1 ft or less.

Friday Night

SSE wind 8 to 12 kt, with gusts as high as 20 kt. A chance of showers, then showers and possibly a thunderstorm after 1am. Waves 1 ft or less.

Saturday

S wind around 13 kt becoming W in the afternoon. Winds could gust as high as 23 kt. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Waves 1 ft or less.

Saturday Night

W wind 11 to 13 kt, with gusts as high as 23 kt. A chance of showers. Waves 1 ft or less.

Sunday

WNW wind 12 to 14 kt, with gusts as high as 25 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.