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Northern Indiana Local Forecast Office

9NM WSW Saint Joseph MI

Marine Point Forecast

[NOTICE]

Tonight
Low: 69 °F
Light Wind
< 1ft
Monday
High: 83 °F
S 10kt
< 1ft
Monday Night
Low: 75 °F
SW 20kt
4ft
Tuesday
High: 81 °F
W 20kt
3-4ft
Tuesday Night
Low: 66 °F
N 25kt
7ft
Wednesday
High: 71 °F
N 20kt
6-7ft
Wednesday Night
Low: 63 °F
N 15kt⇓
6ft
Thursday
High: 75 °F
Light Wind
< 1ft
Thursday Night
Low: 68 °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: 6:45 pm CDT Jul 19, 2026
Forecast Valid: 8pm CDT Jul 19, 2026-6pm CDT Jul 26, 2026

View Nearby Observations

Detailed Forecast

Tonight

Variable winds 5 kt or less. Patchy smoke. Waves 1 ft or less.

Monday

S wind 5 to 10 kt. Patchy smoke. Waves 1 ft or less.

Monday Night

SW wind 15 to 20 kt becoming W in the evening. Winds could gust as high as 25 kt. Showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then a chance of showers and thunderstorms after 5am. Waves 1 ft building to 4 ft.

Tuesday

W wind 15 to 20 kt becoming NNW in the afternoon. Winds could gust as high as 25 kt. A chance of showers, mainly before 7am. Waves 3 to 4 ft.

Tuesday Night

N wind 20 to 25 kt, with gusts as high as 35 kt. Partly cloudy. Waves 4 ft building to 7 ft.

Wednesday

N wind around 20 kt, with gusts as high as 30 kt. Mostly sunny. Waves 6 to 7 ft.

Wednesday Night

N wind 10 to 15 kt becoming NE 5 to 10 kt after midnight. Winds could gust as high as 25 kt. Mostly clear. Waves 6 ft subsiding to 2 ft.

Thursday

Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

Thursday Night

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

Winds and waves higher in and near thunderstorms.

The water temperature at St. Joseph is 53 degrees and at Michigan
City is 53 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.