Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

For More Weather Information:

Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Sunday
High: 88 °F
Light Wind
< 1ft
Sunday Night
Low: 76 °F
Light Wind
< 1ft
Monday
High: 90 °F
SSW 10kt
< 1ft
Monday Night
Low: 73 °F
NNW 15kt
1ft
Tuesday
High: 74 °F
N 20kt
6ft
Tuesday Night
Low: 69 °F
N 20kt
7ft
Wednesday
High: 74 °F
NNE 10kt
2-3ft
Wednesday Night
Low: 69 °F
NNE 10kt
1-2ft
Thursday
High: 81 °F
Light Wind
1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:21 am CDT Jul 26, 2026
Forecast Valid: 4am CDT Jul 26, 2026-6pm CDT Aug 1, 2026

View Nearby Observations

Detailed Forecast

Sunday

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

Sunday Night

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

Monday

SW wind around 10 kt becoming NW in the morning. Winds could gust as high as 20 kt. A chance of showers and thunderstorms, mainly after 4pm. Waves 1 ft or less.

Monday Night

WSW wind 10 to 15 kt becoming NNW after midnight. A chance of showers and thunderstorms before 1am. Waves around 1 ft.

Tuesday

N wind 15 to 20 kt. Mostly sunny. Waves 3 ft building to 6 ft.

Tuesday Night

N wind 10 to 20 kt. Mostly clear. Waves 7 ft subsiding to 4 ft.

Wednesday

NNE wind around 10 kt, with gusts as high as 15 kt. Sunny. Waves 2 to 3 ft.

Wednesday Night

NNE wind 5 to 10 kt. Mostly clear. Waves 1 to 2 ft.

Thursday

Variable winds 5 kt or less. Winds could gust as high as 10 kt. Sunny. Waves around 1 ft.

Winds and waves higher in and near thunderstorms.

*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.