Early Heat Wave in the West; Fire Concerns in the Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

For More Weather Information:

Grand Rapids, MI Local Forecast Office

29NM W South Haven MI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 25 °F
W 13kt
4-5ft
Tonight
Low: 25 °F
S 20kt
2-4ft
Wednesday
High: 40 °F
S 22kt
6ft
Wednesday Night
Low: 38 °F
SSW 11kt
1ft
Thursday
High: 41 °F
SSW 9kt
< 1ft
Thursday Night
Low: 38 °F
N 9kt
< 1ft
Friday
High: 44 °F
SSW 11kt
1ft
Friday Night
Low: 39 °F
N 12kt
1-3ft
Saturday
High: 49 °F
SSE 12kt
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: 2:27 pm CDT Mar 17, 2026
Forecast Valid: 2pm CDT Mar 17, 2026-6pm CDT Mar 23, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

W wind 11 to 13 kt. Mostly cloudy. Waves 4 to 5 ft.

Tonight

S wind 11 to 20 kt. Snow, mainly after 3am. Waves 2 to 4 ft.

Wednesday

S wind 12 to 22 kt. Snow likely, mainly before 8am. Waves 6 ft subsiding to 3 ft.

Wednesday Night

SSW wind around 11 kt. A chance of showers after 1am. Waves around 1 ft.

Thursday

SSW wind around 9 kt becoming N in the afternoon. A chance of showers before 1pm. Waves 1 ft or less.

Thursday Night

N wind 7 to 9 kt becoming S after midnight. Mostly cloudy. Waves 1 ft or less.

Friday

SSW wind 9 to 11 kt. Mostly cloudy. Waves around 1 ft.

Friday Night

WSW wind 10 to 12 kt becoming E after midnight. Mostly cloudy. Waves 1 to 3 ft.

Saturday

SSE wind around 12 kt becoming SSW in the afternoon. Partly sunny. 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.