Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Hazardous Weather Conditions

For More Weather Information:

Grand Rapids, MI Local Forecast Office

South Haven MI

Marine Point Forecast

[NOTICE]

Sunday
High: 68 °F
SSW 14kt
< 1ft
Sunday Night
Low: 53 °F
SSW 15kt
< 1ft
Monday
High: 68 °F
SW 12kt
< 1ft
Monday Night
Low: 55 °F
S 13kt
< 1ft
Tuesday
High: 68 °F
SW 13kt
< 1ft
Tuesday Night
Low: 52 °F
SSW 8kt
< 1ft
Wednesday
High: 66 °F
SW 10kt
< 1ft
Wednesday Night
Low: 52 °F
SSW 9kt
< 1ft
Thursday
High: 63 °F
SSW 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: 3:03 am CDT Apr 12, 2026
Forecast Valid: 3am CDT Apr 12, 2026-6pm CDT Apr 18, 2026

View Nearby Observations

Detailed Forecast

Sunday

SSE wind 12 to 14 kt becoming SSW in the afternoon. Winds could gust as high as 25 kt. A chance of showers and thunderstorms, mainly after 4pm. Waves 1 ft or less.

Sunday Night

SSW wind 13 to 15 kt, with gusts as high as 25 kt. Showers and thunderstorms before 1am, then showers likely. Waves 1 ft or less.

Monday

SW wind 9 to 12 kt, with gusts as high as 19 kt. A slight chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Waves 1 ft or less.

Monday Night

S wind 7 to 13 kt, with gusts as high as 21 kt. Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Waves 1 ft or less.

Tuesday

SW wind 10 to 13 kt, with gusts as high as 21 kt. A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Waves 1 ft or less.

Tuesday Night

SSW wind around 8 kt. Showers and possibly a thunderstorm before 1am, then showers likely. Waves 1 ft or less.

Wednesday

SW wind around 10 kt. Showers likely, mainly after 1pm. Waves 1 ft or less.

Wednesday Night

SSW wind around 9 kt. Showers and possibly a thunderstorm before 1am, then showers likely. Waves 1 ft or less.

Thursday

SSW wind 8 to 10 kt. A chance of showers. 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.