Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather from the Southern Plains to the Great Lakes

Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over CNMI and tropical storm conditions over Guam. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes today. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

For More Weather Information:

Grand Rapids, MI Local Forecast Office

18NM WSW Grand Haven MI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 48 °F
S 9kt
2ft
Tonight
Low: 45 °F
S 13kt
2ft
Wednesday
High: 49 °F
SW 12kt
2ft
Wednesday Night
Low: 43 °F
S 10kt
1-2ft
Thursday
High: 49 °F
SW 12kt
1-2ft
Thursday Night
Low: 41 °F
NW 9kt
1ft
Friday
High: 54 °F
SSE 10kt
1ft
Friday Night
Low: 45 °F
SE 22kt
5ft
Saturday
High: 52 °F
S 23kt
6ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:33 pm CDT Apr 14, 2026
Forecast Valid: 4pm CDT Apr 14, 2026-6pm CDT Apr 20, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

S wind around 9 kt, with gusts as high as 18 kt. Partly sunny. Waves around 2 ft.

Tonight

S wind 10 to 13 kt, with gusts as high as 22 kt. Showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 2am, then a chance of showers and thunderstorms after 2am. Some of the storms could be severe. Patchy dense fog after 9pm. Waves around 2 ft.

Wednesday

SW wind 8 to 12 kt. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. Areas of dense fog before noon, then Patchy dense fog between 2pm and 3pm, then Patchy dense fog after 5pm. Waves around 2 ft.

Wednesday Night

S wind 8 to 10 kt. Showers and possibly a thunderstorm. Patchy dense fog before 11pm. Waves 1 to 2 ft.

Thursday

S wind 10 to 12 kt becoming WNW in the afternoon. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Waves 1 to 2 ft.

Thursday Night

NW wind around 9 kt. Mostly cloudy. Waves around 1 ft.

Friday

SSE wind 8 to 10 kt. Partly sunny. Waves around 1 ft.

Friday Night

SE wind 14 to 22 kt. A chance of showers, then showers and possibly a thunderstorm after 1am. Waves 1 ft building to 5 ft.

Saturday

S wind 20 to 23 kt becoming W in the afternoon. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Waves around 6 ft.

*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.