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

For More Weather Information:

Chicago, IL Local Forecast Office

9NM WSW Michigan City IN

Marine Point Forecast

[NOTICE]
    • Today

      Today:ESE wind 5 to 10 kt becoming SSE in the afternoon. Winds could gust as high as 15 kt. 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.

      High: 74 °F

      ESE 10kt
      < 1ft

    • Tonight

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

      Low: 65 °F

      Light Wind
      < 1ft

    • Sunday

      Sunday:NNE wind 10 to 15 kt, with gusts as high as 20 kt. Showers and thunderstorms likely.   Waves 1 ft building to 4 ft.

      High: 69 °F

      NNE 15kt
      Waves Building4ft

    • Sunday Night

      Sunday Night:ENE wind 10 to 15 kt. A chance of showers.   Waves around 4 ft.

      Low: 57 °F

      ENE 15kt
      4ft

    • Monday

      Monday:ENE wind 10 to 15 kt. A slight chance of showers.   Waves 2 to 3 ft.

      High: 65 °F

      ENE 15kt
      2-3ft

    • Monday Night

      Monday Night:ENE wind 10 to 15 kt. Mostly cloudy. Waves 3 to 4 ft.

      Low: 54 °F

      ENE 15kt
      3-4ft

    • Tuesday

      Tuesday:ENE wind 10 to 15 kt. A slight chance of showers after 1pm.   Waves 3 to 4 ft.

      High: 64 °F

      ENE 15kt
      3-4ft

    • Tuesday Night

      Tuesday Night:NE wind around 10 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 2 to 4 ft.

      Low: 55 °F

      NE 10kt
      2-4ft

    • Wednesday

      Wednesday:NNE wind around 10 kt, with gusts as high as 15 kt. Partly sunny. Waves around 2 ft.

      High: 64 °F

      NNE 10kt
      2ft


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: 6am 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. Winds could gust as high as 15 kt. 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
Variable winds 5 kt or less. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm. Waves 1 ft or less.
Sunday
NNE wind 10 to 15 kt, with gusts as high as 20 kt. Showers and thunderstorms likely. Waves 1 ft building to 4 ft.
Sunday Night
ENE wind 10 to 15 kt. A chance of showers. Waves around 4 ft.
Monday
ENE wind 10 to 15 kt. A slight chance of showers. Waves 2 to 3 ft.
Monday Night
ENE wind 10 to 15 kt. Mostly cloudy. Waves 3 to 4 ft.
Tuesday
ENE wind 10 to 15 kt. A slight chance of showers after 1pm. Waves 3 to 4 ft.
Tuesday Night
NE wind around 10 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 2 to 4 ft.
Wednesday
NNE wind around 10 kt, with gusts as high as 15 kt. Partly sunny. Waves around 2 ft.

*Notices:

  1. 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.
  2. 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.
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ABOUT THIS FORECAST

Point Forecast: 41.66°N 87.08°W
Last Update: 3:46 am CDT Sep 19, 2026
Forecast Valid: 6am CDT Sep 19, 2026-6pm CDT Sep 25, 2026
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