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Northern Indiana Local Forecast Office

9NM WSW Saint Joseph MI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 73 °F
NE 15kt
1ft

Small Craft Advisory
Tonight
Low: 68 °F
NNE 15kt
2-3ft

Small Craft Advisory
Sunday
High: 73 °F
NNE 20kt
2-4ft

Small Craft Advisory
Sunday Night
Low: 65 °F
N 20kt
5ft

Small Craft Advisory
Monday
High: 74 °F
N 10kt
1-2ft
Monday Night
Low: 66 °F
N 10kt
1ft
Tuesday
High: 77 °F
Light Wind
< 1ft
Tuesday Night
Low: 70 °F
Light Wind
< 1ft
Wednesday
High: 75 °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: 3:16 pm CDT Aug 1, 2026
Forecast Valid: 3pm CDT Aug 1, 2026-6pm CDT Aug 7, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

NE wind around 15 kt, with gusts as high as 20 kt. Showers likely and possibly a thunderstorm. Waves around 1 ft.

Tonight

NNE wind around 15 kt, with gusts as high as 25 kt. Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers after 1am. Waves 2 to 3 ft.

Sunday

NNE wind 15 to 20 kt. A slight chance of showers before 8am. Waves 2 to 4 ft.

Sunday Night

N wind 10 to 20 kt becoming ENE after midnight. Mostly clear. Waves 5 ft subsiding to 2 ft.

Monday

NE wind 5 to 10 kt becoming N in the afternoon. Sunny. Waves 1 to 2 ft.

Monday Night

N wind 5 to 10 kt becoming SE after midnight. Mostly clear. Waves around 1 ft.

Tuesday

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

Tuesday Night

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

Wednesday

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

Winds and waves higher in and near thunderstorms.

The water temperature at St. Joseph is 54 degrees and at Michigan
City is 62 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.