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Northern Indiana Local Forecast Office

9NM WSW Saint Joseph MI

Marine Point Forecast

[NOTICE]

Today
High: 63 °F
SSW 10kt
1ft
Tonight
Low: 53 °F
S 10kt
1ft
Thursday
High: 59 °F
SSW 10kt
< 1ft
Thursday Night
Low: 46 °F
WNW 10kt
1ft
Friday
High: 67 °F
S 10kt
< 1ft
Friday Night
Low: 50 °F
SSE 15kt
1-2ft
Saturday
High: 61 °F
SW 20kt
2-3ft
Saturday Night
Low: 39 °F
W 25kt
6ft
Sunday
High: 46 °F
WNW 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: 7:45 am CDT Apr 15, 2026
Forecast Valid: 10am CDT Apr 15, 2026-6pm CDT Apr 21, 2026

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Detailed Forecast

Today

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

Tonight

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

Thursday

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

Thursday Night

WNW wind 5 to 10 kt becoming N after midnight. A slight chance of showers before 1am. Waves around 1 ft.

Friday

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

Friday Night

SSE wind around 15 kt, with gusts as high as 25 kt. A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, 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 likely and possibly a thunderstorm before 1pm, then a chance of showers. Waves 2 to 3 ft.

Saturday Night

W wind 15 to 25 kt. A chance of rain showers before 4am, then a slight chance of rain and snow showers. Waves 3 ft building to 6 ft.

Sunday

WNW wind 20 to 25 kt decreasing to 15 to 20 kt in the afternoon. A slight chance of snow showers before 1pm. Waves 7 ft subsiding to 4 ft.

Winds and waves higher in and near thunderstorms.

The water temperature at St. Joseph is 48 degrees and at Michigan
City is 45 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.