Extreme Heat and Excessive Rainfall This Week

A significant heat wave is underway for the Intermountain West, Northern Plains, and Upper Great Lakes, peaking in intensity through midweek and lingering across parts of the Northern Plains and Midwest until this weekend. In southwest Texas, excessive rainfall may bring a risk for potentially life-threatening flash and arroyo flooding through Thursday. Read More >

For More Weather Information:

Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 84 °F
Light Wind
< 1ft
Tonight
Low: 77 °F
Light Wind
< 1ft
Wednesday
High: 89 °F
Light Wind
< 1ft
Wednesday Night
Low: 76 °F
Light Wind
< 1ft
Thursday
High: 86 °F
Light Wind
< 1ft
Thursday Night
Low: 76 °F
Light Wind
< 1ft
Friday
High: 84 °F
Light Wind
< 1ft
Friday Night
Low: 76 °F
Light Wind
< 1ft
Saturday
High: 90 °F
WSW 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: 11:11 am CDT Jul 14, 2026
Forecast Valid: 11am CDT Jul 14, 2026-6pm CDT Jul 20, 2026

View Nearby Observations

Detailed Forecast

Today

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

Tonight

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

Wednesday

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

Wednesday Night

Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.

Thursday

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

Thursday Night

Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.

Friday

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

Friday Night

Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.

Saturday

WSW wind 5 to 10 kt. A chance of showers and thunderstorms after 1pm. 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.