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Northern Indiana Local Forecast Office

9NM WSW Saint Joseph MI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 41 °F
Light Wind
2ft

Small Craft Advisory
Tonight
Low: 39 °F
E 20kt
1-2ft
Sunday
High: 58 °F
S 25kt
5ft
Sunday Night
Low: 26 °F
WSW 25kt
10ft
Monday
High: 29 °F
WNW 30kt
15ft
Monday Night
Low: 20 °F
WNW 35kt
14ft
Tuesday
High: 27 °F
WNW 25kt⇓
10ft
Tuesday Night
Low: 24 °F
⇑S 20kt
2-3ft
Wednesday
High: 41 °F
S 20kt⇓
1-3ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 1:30 pm CDT Mar 14, 2026
Forecast Valid: 2pm CDT Mar 14, 2026-6pm CDT Mar 20, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

Variable winds 5 kt or less. Cloudy. Waves around 2 ft.

Tonight

E wind 10 to 20 kt, with gusts as high as 30 kt. A slight chance of rain and snow showers between 10pm and 11pm, then a slight chance of rain showers after 11pm. Waves 1 to 2 ft.

Sunday

SE wind 20 to 25 kt becoming S in the afternoon. Winds could gust as high as 35 kt. A chance of showers, mainly after noon. Waves 2 ft building to 5 ft.

Sunday Night

S wind 20 to 25 kt becoming W after midnight. Winds could gust as high as 35 kt. Snow showers, possibly mixed with rain, becoming all snow after 4am. Some thunder is also possible. Waves 3 ft building to 10 ft.

Monday

WNW wind around 30 kt, with gusts as high as 35 kt. Snow showers. Waves 12 ft building to 15 ft.

Monday Night

WNW wind 30 to 35 kt. A chance of snow showers. Waves 14 ft subsiding to 11 ft.

Tuesday

WNW wind 20 to 25 kt decreasing to 10 to 15 kt in the afternoon. A slight chance of snow showers before 1pm. Waves 10 ft subsiding to 4 ft.

Tuesday Night

SW wind 10 to 15 kt becoming S 15 to 20 kt after midnight. A chance of snow showers. Waves 2 to 3 ft.

Wednesday

S wind 15 to 20 kt decreasing to 10 to 15 kt in the afternoon. A chance of snow showers. Waves 1 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.