Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

For More Weather Information:

Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 79 °F
E 10kt
< 1ft
Tonight
Low: 67 °F
SE 10kt
< 1ft
Saturday
High: 80 °F
S 10kt
< 1ft
Saturday Night
Low: 70 °F
S 10kt
< 1ft
Sunday
High: 85 °F
SSW 15kt
1ft
Sunday Night
Low: 74 °F
SSW 10kt
1ft
Monday
High: 88 °F
SSW 10kt
< 1ft
Monday Night
Low: 76 °F
SSW 10kt
< 1ft
Tuesday
High: 88 °F
SW 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: 1:21 am CDT Aug 28, 2026
Forecast Valid: 8am CDT Aug 28, 2026-6pm CDT Sep 3, 2026

View Nearby Observations

Detailed Forecast

Today

S wind 5 to 10 kt becoming E in the afternoon. Sunny. Waves 1 ft or less.

Tonight

SE wind 5 to 10 kt becoming SSW after midnight. Partly cloudy. Waves 1 ft or less.

Saturday

S wind 5 to 10 kt. Increasing clouds. Waves 1 ft or less.

Saturday Night

S wind around 10 kt, with gusts as high as 15 kt. Mostly cloudy. Waves 1 ft or less.

Sunday

SSW wind 10 to 15 kt, with gusts as high as 20 kt. Mostly sunny. Waves around 1 ft.

Sunday Night

SSW wind around 10 kt, with gusts as high as 15 kt. A slight chance of showers and thunderstorms. Waves around 1 ft.

Monday

SSW wind around 10 kt, with gusts as high as 15 kt. Mostly sunny. Waves 1 ft or less.

Monday Night

SSW wind around 10 kt. Partly cloudy. Waves 1 ft or less.

Tuesday

SW wind 5 to 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.