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]

Today
High: 71 °F
ESE 10kt
< 1ft
Tonight
Low: 70 °F
NNE 10kt
< 1ft
Sunday
High: 68 °F
NNE 20kt
5ft
Sunday Night
Low: 59 °F
ENE 20kt
5ft
Monday
High: 64 °F
ENE 20kt
3-5ft
Monday Night
Low: 56 °F
ENE 20kt
4-5ft
Tuesday
High: 62 °F
ENE 20kt
4-5ft
Tuesday Night
Low: 56 °F
NE 20kt
4-5ft
Wednesday
High: 65 °F
NE 15kt
3ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:46 am CDT Sep 19, 2026
Forecast Valid: 5am CDT Sep 19, 2026-6pm CDT Sep 25, 2026

View Nearby Observations

Detailed Forecast

Today

ESE wind 5 to 10 kt becoming SSE in the afternoon. Showers and possibly a thunderstorm before noon, then showers and thunderstorms likely, mainly between noon and 1pm. Some of the storms could produce heavy rainfall. Waves 1 ft or less.

Tonight

E wind 5 to 10 kt becoming NNW after midnight. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 9pm. Waves 1 ft or less.

Sunday

NNE wind 15 to 20 kt. Showers likely and possibly a thunderstorm. Waves 2 ft building to 5 ft.

Sunday Night

ENE wind 15 to 20 kt. A chance of showers. Waves around 5 ft.

Monday

ENE wind 15 to 20 kt. A chance of showers, mainly before 1pm. Waves 3 to 5 ft.

Monday Night

ENE wind 15 to 20 kt. Mostly cloudy. Waves 4 to 5 ft.

Tuesday

ENE wind 15 to 20 kt. A slight chance of showers. Waves 4 to 5 ft.

Tuesday Night

NE wind 15 to 20 kt. Mostly cloudy. Waves 4 to 5 ft.

Wednesday

NE wind around 15 kt. Partly sunny. Waves around 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.