Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

For More Weather Information:

Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

This Afternoon
High: 74 °F
N 10kt
1ft
Tonight
Low: 68 °F
Light Wind
1ft
Friday
High: 75 °F
Light Wind
1ft
Friday Night
Low: 68 °F
Light Wind
< 1ft
Saturday
High: 77 °F
SSW 10kt
< 1ft
Saturday Night
Low: 71 °F
S 10kt
1ft
Sunday
High: 82 °F
SSW 15kt
1ft
Sunday Night
Low: 75 °F
S 10kt
1ft
Monday
High: 86 °F
SSW 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: 9:31 am CDT Aug 27, 2026
Forecast Valid: 12pm CDT Aug 27, 2026-6pm CDT Sep 2, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

N wind 5 to 10 kt becoming ENE. Mostly sunny. Waves around 1 ft.

Tonight

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

Friday

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

Friday Night

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

Saturday

SSW wind 5 to 10 kt. Partly sunny. Waves 1 ft or less.

Saturday Night

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

Sunday

SSW wind 10 to 15 kt, with gusts as high as 20 kt. A slight chance of showers and thunderstorms before 1pm. Waves around 1 ft.

Sunday Night

S wind around 10 kt, with gusts as high as 15 kt. A chance of showers. Waves around 1 ft.

Monday

SSW wind around 10 kt. Partly 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.