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Northern Indiana Local Forecast Office

9NM WSW Saint Joseph MI

Marine Point Forecast

[NOTICE]

Tonight
Low: 54 °F
SSW 15kt
1-2ft
Wednesday
High: 63 °F
SSW 15kt
1ft
Wednesday Night
Low: 54 °F
SSW 10kt
1ft
Thursday
High: 60 °F
SSW 10kt
1ft
Thursday Night
Low: 47 °F
WNW 10kt
1ft
Friday
High: 67 °F
SSE 10kt
< 1ft
Friday Night
Low: 54 °F
SE 20kt
1-2ft
Saturday
High: 63 °F
S 20kt
3ft
Saturday Night
Low: 39 °F
W 25kt
7ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 8:46 pm CDT Apr 14, 2026
Forecast Valid: 9pm CDT Apr 14, 2026-6pm CDT Apr 21, 2026

View Nearby Observations

Detailed Forecast

Tonight

SSW wind around 15 kt becoming W after midnight. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Some of the storms could be severe. Waves 1 to 2 ft.

Wednesday

SSW wind 10 to 15 kt. Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 4pm, then showers likely and possibly a thunderstorm after 4pm. Waves around 1 ft.

Wednesday Night

SSW wind around 10 kt. Showers and possibly a thunderstorm. Waves around 1 ft.

Thursday

SSW wind around 10 kt becoming W in the afternoon. Showers likely and possibly a thunderstorm. Waves around 1 ft.

Thursday Night

WNW wind 5 to 10 kt. A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 1am. Waves around 1 ft.

Friday

SSE wind 5 to 10 kt. Partly sunny. Waves 1 ft or less.

Friday Night

SE wind 10 to 20 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Waves 1 to 2 ft.

Saturday

S wind 15 to 20 kt becoming W in the afternoon. Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Waves around 3 ft.

Saturday Night

W wind 20 to 25 kt. A chance of showers, mainly before 1am. Waves 3 ft building to 7 ft.

Winds and waves higher in and near thunderstorms.

The water temperature at St. Joseph is 48 degrees and at Michigan
City is 46 degrees.

*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.