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

5NM NW Gary IN

Marine Point Forecast

[NOTICE]

Overnight
Low: 63 °F
ESE 10kt
1ft
Saturday
High: 75 °F
ESE 15kt
< 1ft
Saturday Night
Low: 66 °F
N 10kt
< 1ft
Sunday
High: 69 °F
NNE 20kt
5ft
Sunday Night
Low: 60 °F
ENE 25kt
4-6ft
Monday
High: 64 °F
ENE 20kt
3-4ft
Monday Night
Low: 56 °F
ENE 20kt
4-5ft
Tuesday
High: 64 °F
NE 20kt
3-4ft
Tuesday Night
Low: 56 °F
NE 20kt
3-4ft

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: 12am CDT Sep 19, 2026-6pm CDT Sep 25, 2026

View Nearby Observations

Detailed Forecast

Overnight

ESE wind around 10 kt, with gusts as high as 20 kt. A slight chance of showers, then a chance of showers and thunderstorms after 1am. Waves around 1 ft.

Saturday

ESE wind 5 to 15 kt becoming S in the afternoon. Showers and thunderstorms, mainly before 1pm. Waves 1 ft or less.

Saturday Night

SE wind 5 to 10 kt becoming N after midnight. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm. Waves 1 ft or less.

Sunday

NNE wind 15 to 20 kt. Showers likely and possibly a thunderstorm. Waves 1 ft building to 5 ft.

Sunday Night

ENE wind 15 to 25 kt. A chance of showers. Waves 4 to 6 ft. occasionally to 8ft.

Monday

ENE wind 15 to 20 kt. Showers likely, mainly before 1pm. Waves 3 to 4 ft.

Monday Night

ENE wind 15 to 20 kt, with gusts as high as 25 kt. A slight chance of showers after 1am. Waves 4 to 5 ft.

Tuesday

NE wind 15 to 20 kt. Mostly cloudy. Waves 3 to 4 ft.

Tuesday Night

NE wind 15 to 20 kt. Mostly cloudy. Waves 3 to 4 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.