Areas of Dangerous Heat and Severe Thunderstorms

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 before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

For More Weather Information:

Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Thursday
High: 74 °F
Light Wind
1ft
Thursday Night
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: 68 °F
S 10kt
< 1ft
Sunday
High: 82 °F
SSW 15kt
1ft
Sunday Night
Low: 71 °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: 1:21 am CDT Aug 27, 2026
Forecast Valid: 1am CDT Aug 27, 2026-6pm CDT Sep 2, 2026

View Nearby Observations

Detailed Forecast

Thursday

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

Thursday Night

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 1 ft or less.

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.