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Northern Indiana Local Forecast Office

9NM WSW Saint Joseph MI

Marine Point Forecast

[NOTICE]

Today
High: 81 °F
S 10kt
< 1ft
Tonight
Low: 65 °F
S 15kt
1-2ft
Monday
High: 80 °F
SSW 15kt
2-3ft
Monday Night
Low: 66 °F
S 15kt
2ft
Tuesday
High: 78 °F
S 20kt
3ft
Tuesday Night
Low: 49 °F
W 15kt
2-3ft
Wednesday
High: 56 °F
NNW 15kt
3ft
Wednesday Night
Low: 48 °F
N 15kt
2-3ft
Thursday
High: 62 °F
NNE 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: 4:45 am CDT May 17, 2026
Forecast Valid: 7am CDT May 17, 2026-6pm CDT May 23, 2026

View Nearby Observations

Detailed Forecast

Today

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

Tonight

S wind around 15 kt, with gusts as high as 20 kt. Partly cloudy. Waves 1 to 2 ft.

Monday

SSW wind around 15 kt, with gusts as high as 25 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Waves 2 to 3 ft.

Monday Night

S wind around 15 kt, with gusts as high as 25 kt. A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Waves around 2 ft.

Tuesday

S wind 15 to 20 kt becoming WSW in the afternoon. Winds could gust as high as 30 kt. A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Waves around 3 ft.

Tuesday Night

W wind around 15 kt becoming NNW after midnight. A chance of showers before 1am. Waves 2 to 3 ft.

Wednesday

NNW wind around 15 kt. Mostly sunny. Waves around 3 ft.

Wednesday Night

N wind 10 to 15 kt. Partly cloudy. Waves 2 to 3 ft.

Thursday

NNE wind around 10 kt. Mostly sunny. Waves around 1 ft.

Winds and waves higher in and near thunderstorms.

The water temperature at St. Joseph is 53 degrees and at Michigan
City is 51 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.