Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Hazardous Weather Conditions

For More Weather Information:

Chicago, IL Local Forecast Office

15NM NNW Evanston IL

Marine Point Forecast

[NOTICE]

Friday
High: 67 °F
ENE 15kt
3ft

Small Craft Advisory
Friday Night
Low: 61 °F
ESE 15kt
3-5ft
Saturday
High: 68 °F
SE 15kt
5ft
Saturday Night
Low: 62 °F
NE 15kt
2-3ft
Sunday
High: 64 °F
NE 20kt
4-6ft
Sunday Night
Low: 57 °F
ENE 25kt
7ft
Monday
High: 60 °F
ENE 25kt
7-8ft
Monday Night
Low: 54 °F
ENE 25kt
7-8ft
Tuesday
High: 60 °F
ENE 20kt
6-7ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 2:41 am CDT Sep 18, 2026
Forecast Valid: 4am CDT Sep 18, 2026-6pm CDT Sep 24, 2026

View Nearby Observations

Detailed Forecast

Friday

ENE wind 10 to 15 kt. Partly sunny. Waves around 3 ft.

Friday Night

ENE wind around 15 kt becoming ESE after midnight. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5am. Some of the storms could produce heavy rainfall. Waves 3 to 5 ft.

Saturday

SE wind 10 to 15 kt. Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms between 1pm and 2pm, then showers likely and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. Waves 5 ft subsiding to 2 ft.

Saturday Night

NE wind 10 to 15 kt. Showers and possibly a thunderstorm. Waves 2 to 3 ft.

Sunday

NE wind 15 to 20 kt, with gusts as high as 25 kt. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Waves 4 to 6 ft. occasionally to 8ft.

Sunday Night

ENE wind 20 to 25 kt. A chance of showers. Waves around 7 ft.

Monday

ENE wind 20 to 25 kt. A chance of showers. Waves 7 to 8 ft. occasionally to 10ft.

Monday Night

ENE wind 20 to 25 kt. A chance of showers. Waves 7 to 8 ft. occasionally to 10ft.

Tuesday

ENE wind around 20 kt. Mostly cloudy. Waves 6 to 7 ft. occasionally to 9ft.

*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.