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Northern Indiana Local Forecast Office

9NM WSW Saint Joseph MI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 69 °F
S 15kt
1ft
Tonight
Low: 43 °F
SSW 20kt
1-2ft

Small Craft Advisory
Saturday
High: 50 °F
WNW 20kt
3-4ft

Small Craft Advisory
Saturday Night
Low: 41 °F
WNW 15kt
3ft

Small Craft Advisory
Sunday
High: 47 °F
W 15kt
2ft
Sunday Night
Low: 36 °F
NNW 10kt
1-2ft
Monday
High: 50 °F
Light Wind
< 1ft
Monday Night
Low: 45 °F
⇑S 20kt
1-2ft
Tuesday
High: 61 °F
SSW 20kt
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: 2:00 pm CDT Apr 17, 2026
Forecast Valid: 3pm CDT Apr 17, 2026-6pm CDT Apr 23, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

S wind 10 to 15 kt. Mostly sunny. Waves around 1 ft.

Tonight

S wind 15 to 20 kt becoming SW after midnight. Showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers and thunderstorms after 4am. Waves 1 to 2 ft.

Saturday

WNW wind 15 to 20 kt. A chance of showers and thunderstorms, mainly before 10am. Waves 3 to 4 ft.

Saturday Night

WNW wind around 15 kt, with gusts as high as 20 kt. Partly cloudy. Waves around 3 ft.

Sunday

W wind 10 to 15 kt becoming NNW in the afternoon. A slight chance of showers and thunderstorms after 1pm. Waves around 2 ft.

Sunday Night

NNW wind 5 to 10 kt becoming NE after midnight. Mostly clear. Waves 1 to 2 ft.

Monday

Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

Monday Night

ESE wind 5 to 10 kt becoming S 15 to 20 kt after midnight. Partly cloudy. Waves 1 to 2 ft.

Tuesday

SSW wind 10 to 20 kt. Mostly 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.