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Northern Indiana Local Forecast Office

9NM WSW Saint Joseph MI

Marine Point Forecast

[NOTICE]

Wednesday
High: 76 °F
Light Wind
< 1ft
Wednesday Night
Low: 71 °F
Light Wind
< 1ft
Thursday
High: 76 °F
Light Wind
< 1ft
Thursday Night
Low: 71 °F
Light Wind
< 1ft
Friday
High: 77 °F
NNE 10kt
< 1ft
Friday Night
Low: 70 °F
ESE 10kt
< 1ft
Saturday
High: 79 °F
SE 10kt
< 1ft
Saturday Night
Low: 73 °F
SSE 10kt
< 1ft
Sunday
High: 75 °F
WSW 10kt
< 1ft

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 am CDT Aug 12, 2026
Forecast Valid: 1am CDT Aug 12, 2026-6pm CDT Aug 18, 2026

View Nearby Observations

Detailed Forecast

Wednesday

Variable winds 5 kt or less. A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 4pm. Patchy fog before 8am. Waves 1 ft or less.

Wednesday Night

Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.

Thursday

Variable winds 5 kt or less. A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Waves 1 ft or less.

Thursday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms. Waves 1 ft or less.

Friday

NNE wind 5 to 10 kt. Mostly sunny. Waves 1 ft or less.

Friday Night

NNE wind 5 to 10 kt becoming ESE after midnight. A chance of showers after 1am. Waves 1 ft or less.

Saturday

SE wind around 10 kt. A chance of showers and thunderstorms. Waves 1 ft or less.

Saturday Night

SSE wind around 10 kt becoming SSW after midnight. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Waves 1 ft or less.

Sunday

WSW wind around 10 kt becoming NNW in the afternoon. A chance of showers and thunderstorms, mainly before 1pm. Waves 1 ft or less.

Winds and waves higher in and near thunderstorms.

The water temperature at St. Joseph is 72 degrees and at Michigan
City is 67 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.