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Northern Indiana Local Forecast Office

9NM WSW Saint Joseph MI

Marine Point Forecast

[NOTICE]

Tonight
Low: 70 °F
S 10kt
< 1ft
Wednesday
High: 76 °F
SSW 10kt
< 1ft
Wednesday Night
Low: 69 °F
Light Wind
< 1ft
Thursday
High: 73 °F
Light Wind
< 1ft
Thursday Night
Low: 68 °F
Light Wind
< 1ft
Friday
High: 77 °F
Light Wind
< 1ft
Friday Night
Low: 71 °F
⇑SW 10kt
< 1ft
Saturday
High: 78 °F
SW 10kt
< 1ft
Saturday Night
Low: 71 °F
S 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: 6:45 pm CDT Aug 4, 2026
Forecast Valid: 8pm CDT Aug 4, 2026-6pm CDT Aug 11, 2026

View Nearby Observations

Detailed Forecast

Tonight

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

Wednesday

SSW wind 5 to 10 kt becoming W in the afternoon. A slight chance of showers before 1pm, then a chance of showers and thunderstorms after 4pm. Waves 1 ft or less.

Wednesday Night

Variable winds 5 kt or less. Showers and thunderstorms, mainly before 2am, then showers likely and possibly a thunderstorm after 3am. Waves 1 ft or less.

Thursday

Variable winds 5 kt or less. A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Waves 1 ft or less.

Thursday Night

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

Friday

Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.

Friday Night

Variable winds less than 5 kt becoming SW 5 to 10 kt after midnight. A slight chance of showers and thunderstorms. Waves 1 ft or less.

Saturday

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

Saturday Night

NNE wind 5 to 10 kt becoming S in the evening. A slight chance of showers and thunderstorms, then a chance of showers after 1am. Waves 1 ft or less.

Winds and waves higher in and near thunderstorms.

The water temperature 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.