Hazardous Weather Conditions

For More Weather Information:

Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Late Afternoon
High: 21 °C
N 25km/h
1m

Small Craft Advisory
Tonight
Low: 19 °C
N 25km/h
1m

Small Craft Advisory
Monday
High: 24 °C
N 25km/h
1m

Small Craft Advisory
Monday Night
Low: 21 °C
NNE 15km/h
< 1m
Tuesday
High: 28 °C
ESE 15km/h
< 1m
Tuesday Night
Low: 23 °C
SSE 10km/h
< 1m
Wednesday
High: 26 °C
ENE 15km/h
< 1m
Wednesday Night
Low: 22 °C
NNE 15km/h
< 1m
Thursday
High: 25 °C
NE 15km/h
< 1m

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 5:07 pm CDT Jul 6, 2025
Forecast Valid: 5pm CDT Jul 6, 2025-6pm CDT Jul 13, 2025

View Nearby Observations

Detailed Forecast

Late Afternoon

N wind around 25 km/h, with gusts as high as 40 km/h. Showers likely and possibly a thunderstorm. Waves around 1 m.

Tonight

N wind around 25 km/h, with gusts as high as 40 km/h. A chance of showers and thunderstorms, mainly before 8pm. Waves around 1 m.

Monday

N wind 20 to 25 km/h, with gusts as high as 30 km/h. Mostly cloudy, then gradually becoming sunny. Waves around 1 m.

Monday Night

NNE wind 10 to 15 km/h, with gusts as high as 25 km/h. Mostly clear. Waves 1 m or less.

Tuesday

WSW wind 5 to 15 km/h becoming ESE in the afternoon. A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Waves 1 m or less.

Tuesday Night

SSE wind around 10 km/h becoming WSW after midnight. A chance of showers and thunderstorms, mainly after 1am. Waves 1 m or less.

Wednesday

WSW wind 10 to 15 km/h becoming ENE in the afternoon. A chance of showers and thunderstorms, mainly before 1pm. Waves 1 m or less.

Wednesday Night

NNE wind 10 to 15 km/h. Partly cloudy. Waves 1 m or less.

Thursday

NE wind 10 to 15 km/h, with gusts as high as 20 km/h. Mostly sunny. Waves 1 m or less.

*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.