Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

For More Weather Information:

Chicago, IL Local Forecast Office

10NM NW Gary IN

Marine Point Forecast

[NOTICE]

Tonight
Low: 63 °F
ESE 10kt
2ft
Saturday
High: 75 °F
ESE 10kt
1-2ft
Saturday Night
Low: 65 °F
Light Wind
< 1ft
Sunday
High: 68 °F
NE 20kt
7ft
Sunday Night
Low: 58 °F
ENE 20kt
5-7ft
Monday
High: 65 °F
ENE 20kt
5-6ft
Monday Night
Low: 56 °F
ENE 20kt
5-7ft
Tuesday
High: 63 °F
NE 15kt
5-6ft
Tuesday Night
Low: 57 °F
NE 15kt
6ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:51 pm CDT Sep 18, 2026
Forecast Valid: 10pm CDT Sep 18, 2026-6pm CDT Sep 25, 2026

View Nearby Observations

Detailed Forecast

Tonight

ESE wind around 10 kt, with gusts as high as 15 kt. A slight chance of showers, then a chance of showers and thunderstorms after 1am. Waves around 2 ft.

Saturday

ESE wind 5 to 10 kt becoming S in the afternoon. Winds could gust as high as 15 kt. Showers and thunderstorms, mainly before 1pm. Some of the storms could produce heavy rainfall. Waves 1 to 2 ft.

Saturday Night

Variable winds 5 kt or less. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm. Waves 1 ft or less.

Sunday

NE wind 10 to 20 kt. Showers likely and possibly a thunderstorm. Waves 2 ft building to 7 ft.

Sunday Night

ENE wind 15 to 20 kt. A chance of showers. Waves 5 to 7 ft. occasionally to 9ft.

Monday

ENE wind 15 to 20 kt. Showers likely, mainly before 1pm. Waves 5 to 6 ft. occasionally to 8ft.

Monday Night

ENE wind 15 to 20 kt. A slight chance of showers after 1am. Waves 5 to 7 ft. occasionally to 9ft.

Tuesday

NE wind around 15 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 5 to 6 ft. occasionally to 8ft.

Tuesday Night

NE wind 10 to 15 kt. Mostly cloudy. Waves 6 ft subsiding to 3 ft.

*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.