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Chicago, IL Local Forecast Office

4NM ENE Gary IN

Marine Point Forecast

[NOTICE]

Today
High: 41 °F
⇑N 20kt
5-7ft

Small Craft Advisory
Tonight
Low: 36 °F
N 20kt⇓
6-8ft

Small Craft Advisory
Saturday
High: 46 °F
NW 20kt
6ft

Small Craft Advisory
Saturday Night
Low: 35 °F
WNW 10kt
2-3ft
Sunday
High: 48 °F
Light Wind
1-2ft
Sunday Night
Low: 33 °F
Light Wind
< 1ft
Monday
High: 49 °F
Light Wind
< 1ft
Monday Night
Low: 34 °F
Light Wind
< 1ft
Tuesday
High: 51 °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: 8:36 am CST Nov 13, 2026
Forecast Valid: 9am CST Nov 13, 2026-6pm CST Nov 19, 2026

View Nearby Observations

Detailed Forecast

Today

E wind 5 to 10 kt becoming N 15 to 20 kt in the afternoon. Rain, possibly mixed with snow showers before 11am, then rain. A slight chance of waterspouts. Waves 5 to 7 ft. occasionally to 9ft.

Tonight

N wind 15 to 20 kt becoming SE 5 to 10 kt after midnight. Rain before 10pm, then rain and snow. A slight chance of waterspouts before midnight. Waves 6 to 8 ft. occasionally to 10ft.

Saturday

NW wind 10 to 20 kt. A chance of rain before noon. Waves 6 ft subsiding to 3 ft.

Saturday Night

WNW wind 5 to 10 kt. Partly cloudy. Waves 2 to 3 ft.

Sunday

Variable winds 5 kt or less. Mostly sunny. Waves 1 to 2 ft.

Sunday Night

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

Monday

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

Monday Night

Variable winds 5 kt or less. Clear. Waves 1 ft or less.

Tuesday

Variable winds 5 kt or less. 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.