Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

For More Weather Information:

Grand Rapids, MI Local Forecast Office

29NM W South Haven MI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 48 °F
S 15kt
1-2ft
Tonight
Low: 39 °F
SSW 15kt
2-3ft
Sunday
High: 42 °F
N 25kt
9ft
Sunday Night
Low: 31 °F
N 25kt
10ft
Monday
High: 37 °F
N 15kt
5ft
Monday Night
Low: 35 °F
S 10kt
1-2ft
Tuesday
High: 45 °F
S 14kt
1ft
Tuesday Night
Low: 39 °F
SE 16kt
1-3ft
Wednesday
High: 47 °F
SE 18kt
2-3ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 2:32 pm CDT Mar 21, 2026
Forecast Valid: 3pm CDT Mar 21, 2026-6pm CDT Mar 27, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

S wind around 15 kt, with gusts as high as 21 kt. Mostly sunny. Waves 1 to 2 ft.

Tonight

SSW wind 10 to 15 kt becoming N after midnight. Winds could gust as high as 22 kt. Mostly cloudy. Waves 2 to 3 ft.

Sunday

N wind 17 to 25 kt, with gusts as high as 32 kt. A slight chance of rain between 8am and 2pm. Waves 3 ft building to 9 ft.

Sunday Night

N wind 17 to 25 kt. Mostly cloudy. Waves 10 ft subsiding to 6 ft.

Monday

N wind 8 to 15 kt. Mostly sunny. Waves 5 ft subsiding to 2 ft.

Monday Night

NNE wind 6 to 10 kt becoming S after midnight. Partly cloudy. Waves 1 to 2 ft.

Tuesday

S wind 8 to 14 kt. Mostly cloudy. Waves around 1 ft.

Tuesday Night

SE wind 8 to 16 kt. Mostly cloudy. Waves 1 to 3 ft.

Wednesday

SE wind 12 to 18 kt. Mostly cloudy. Waves 2 to 3 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.