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Northern Indiana Local Forecast Office

9NM WSW Saint Joseph MI

Marine Point Forecast

[NOTICE]

Overnight
Low: 70 °F
Light Wind
< 1ft
Thursday
High: 72 °F
Light Wind
< 1ft
Thursday Night
Low: 68 °F
Light Wind
< 1ft
Friday
High: 77 °F
Light Wind
< 1ft
Friday Night
Low: 72 °F
⇑SW 10kt
< 1ft
Saturday
High: 76 °F
WSW 10kt
1ft
Saturday Night
Low: 70 °F
Light Wind
< 1ft
Sunday
High: 78 °F
SW 10kt
< 1ft
Sunday Night
Low: 71 °F
Light Wind
< 1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 12:16 am CDT Aug 6, 2026
Forecast Valid: 12am CDT Aug 6, 2026-6pm CDT Aug 12, 2026

View Nearby Observations

Detailed Forecast

Overnight

Variable winds 5 kt or less. A chance of showers, with thunderstorms also possible after 1am. Waves 1 ft or less.

Thursday

Variable winds 5 kt or less. Showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms after 3pm. Waves 1 ft or less.

Thursday Night

Variable winds 5 kt or less. A slight chance of showers and thunderstorms before 7pm. Waves 1 ft or less.

Friday

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

Friday Night

Variable winds less than 5 kt becoming SW 5 to 10 kt in the evening. A chance of showers, with thunderstorms also possible after 4am. Waves 1 ft or less.

Saturday

WSW wind 5 to 10 kt becoming NW in the afternoon. A slight chance of thunderstorms before 7am. Waves around 1 ft.

Saturday Night

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

Sunday

SW wind 5 to 10 kt. A chance of showers and thunderstorms, mainly before 1pm. Waves 1 ft or less.

Sunday Night

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

Winds and waves higher in and near thunderstorms.

The water temperature at St. Joseph is 67 degrees and at Michigan
City is 66 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.