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9NM WSW Saint Joseph MI

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 5:30 am CDT Aug 18, 2026
Forecast Valid: 5am CDT Aug 18, 2026-6pm CDT Aug 24, 2026

Today

SW wind around 10 kt. A slight chance of showers and thunderstorms after 5pm. Waves around 1 ft.

Tonight

SW wind 10 to 15 kt becoming NW after midnight. Showers and thunderstorms likely before 4am, then a chance of showers. Waves 1 to 2 ft.

Wednesday

N wind 5 to 10 kt. Mostly sunny. Waves around 1 ft.

Wednesday Night

N wind 5 to 10 kt becoming E after midnight. Mostly clear. Waves 1 ft or less.

Thursday

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

Thursday Night

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

Friday

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

Friday Night

SSW wind 5 to 10 kt becoming WSW after midnight. A chance of showers and thunderstorms. Waves 1 ft or less.

Saturday

W wind around 10 kt becoming NW in the afternoon. A slight chance of showers, with thunderstorms also possible after 1pm. Waves 1 to 2 ft.

Winds and waves higher in and near thunderstorms.

The water temperature at St. Joseph is 70 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.