Areas of Showers and Thunderstorms to Start the Work Week

Areas of rain and thunderstorms are forecast Monday across the central and eastern states. Some mixed rain and snow is possible in the high Sierra Mountains. Heavy to excessive rain may bring flooding in the central Appalachians. Read More >

Hazardous Weather Conditions

For More Weather Information:

Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 64 °F
ENE 20kt
5-6ft

Small Craft Advisory
Tonight
Low: 62 °F
ENE 20kt
5ft

Small Craft Advisory
Tuesday
High: 64 °F
NE 15kt
4-5ft

Small Craft Advisory
Tuesday Night
Low: 59 °F
ENE 20kt
4-5ft

Small Craft Advisory
Wednesday
High: 63 °F
NE 15kt
4ft

Small Craft Advisory
Wednesday Night
Low: 59 °F
ENE 15kt
2-3ft
Thursday
High: 64 °F
ENE 15kt
1-2ft
Thursday Night
Low: 58 °F
ENE 10kt
1ft
Friday
High: 66 °F
E 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: 3:46 am CDT Sep 21, 2026
Forecast Valid: 5am CDT Sep 21, 2026-6pm CDT Sep 27, 2026

View Nearby Observations

Detailed Forecast

Today

ENE wind 15 to 20 kt. Areas of showers, mainly before 10am. Waves 5 to 6 ft. occasionally to 8ft.

Tonight

ENE wind 15 to 20 kt. Mostly cloudy. Waves around 5 ft.

Tuesday

NE wind around 15 kt, with gusts as high as 20 kt. Partly sunny. Waves 4 to 5 ft.

Tuesday Night

ENE wind 15 to 20 kt. Partly cloudy. Waves 4 to 5 ft.

Wednesday

NE wind around 15 kt. Partly sunny. Waves around 4 ft.

Wednesday Night

ENE wind around 15 kt. Partly cloudy. Waves 2 to 3 ft.

Thursday

ENE wind 10 to 15 kt. Mostly sunny. Waves 1 to 2 ft.

Thursday Night

NE wind around 10 kt becoming E in the evening. Partly cloudy. Waves around 1 ft.

Friday

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