Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

For More Weather Information:

Northern Indiana Local Forecast Office

5NM NNW Saint Joseph MI

Marine Point Forecast

[NOTICE]

Today
High: 82 °F
WSW 10kt
< 1ft
Tonight
Low: 72 °F
Light Wind
< 1ft
Sunday
High: 80 °F
Light Wind
< 1ft
Sunday Night
Low: 71 °F
E 10kt
< 1ft
Monday
High: 85 °F
SE 10kt
< 1ft
Monday Night
Low: 74 °F
S 10kt
< 1ft
Tuesday
High: 81 °F
NNW 10kt
< 1ft
Tuesday Night
Low: 70 °F
N 10kt
1-2ft
Wednesday
High: 77 °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: 6:29 am CDT Aug 16, 2025
Forecast Valid: 7am CDT Aug 16, 2025-6pm CDT Aug 22, 2025

View Nearby Observations

Detailed Forecast

Today

S wind 5 to 10 kt becoming WSW in the afternoon. A slight chance of showers, then a chance of showers and thunderstorms after 8am. Waves 1 ft or less.

Tonight

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

Sunday

Variable winds 5 kt or less. A slight chance of showers and thunderstorms before 1pm. Waves 1 ft or less.

Sunday Night

NNE wind 5 to 10 kt becoming ESE after midnight. A slight chance of showers and thunderstorms after 1am. Waves 1 ft or less.

Monday

SE wind 5 to 10 kt becoming S in the afternoon. A chance of showers and thunderstorms. Waves 1 ft or less.

Monday Night

S wind 5 to 10 kt. A chance of showers and thunderstorms. Waves 1 ft or less.

Tuesday

WSW wind around 10 kt becoming NNW in the afternoon. A chance of showers and thunderstorms. Waves 1 ft or less.

Tuesday Night

N wind around 10 kt. A slight chance of showers and thunderstorms before 1am. Waves 1 to 2 ft.

Wednesday

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

Winds and waves higher in and near thunderstorms.

The water temperature at St. Joseph is 57 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.