Severe Thunderstorms; Excessive Rainfall; Dangerous Heat; Air Quality Concerns and the Tropics

Wildfire smoke will push into the Midwest, worsening air quality. A frontal system brings severe storms from the Northern Plains to the Mid‑Atlantic the next few days. Heavy Gulf Coast rain is possible as Tropical Depression Two has formed, while monsoonal storms persist in the Southwest with heavy rainfall. Hazardous heat expands from the Plains into the Lower Mississippi Valley. Read More >

For More Weather Information:

Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

This Afternoon
High: 74 °F
NE 10kt
1ft
Tonight
Low: 70 °F
Light Wind
< 1ft
Monday
High: 86 °F
S 10kt
< 1ft
Monday Night
Low: 75 °F
SSW 15kt
1ft
Tuesday
High: 84 °F
NNW 15kt
1-2ft
Tuesday Night
Low: 67 °F
N 20kt
7ft
Wednesday
High: 71 °F
N 20kt
5-7ft
Wednesday Night
Low: 65 °F
NNE 15kt
2-4ft
Thursday
High: 78 °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: 3:31 pm CDT Jul 19, 2026
Forecast Valid: 3pm CDT Jul 19, 2026-6pm CDT Jul 25, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

NE wind around 10 kt. Widespread smoke. Waves around 1 ft.

Tonight

Variable winds 5 kt or less. Widespread smoke. Waves 1 ft or less.

Monday

S wind 5 to 10 kt, with gusts as high as 20 kt. Widespread smoke before 1pm. Waves 1 ft or less.

Monday Night

SSW wind 10 to 15 kt. Showers and thunderstorms likely, mainly between 1am and 4am. Waves around 1 ft.

Tuesday

WSW wind 10 to 15 kt becoming NNW in the afternoon. Winds could gust as high as 20 kt. A chance of showers and thunderstorms before 7am. Waves 1 to 2 ft.

Tuesday Night

N wind around 20 kt, with gusts as high as 25 kt. A slight chance of showers and thunderstorms before 1am. Waves 3 ft building to 7 ft.

Wednesday

N wind 15 to 20 kt. Mostly sunny. Waves 5 to 7 ft. occasionally to 9ft.

Wednesday Night

NNE wind 5 to 15 kt becoming NW after midnight. Mostly clear. Waves 2 to 4 ft.

Thursday

WNW wind 5 to 10 kt becoming E in the afternoon. 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.