Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Severe thunderstorms are expected across parts of the central and southern High Plains, central Great Lakes, and Ozarks Wednesday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

For More Weather Information:

Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Wednesday
High: 84 °F
SW 15kt
1ft
Wednesday Night
Low: 68 °F
NW 10kt
< 1ft
Thursday
High: 75 °F
NE 10kt
< 1ft
Thursday Night
Low: 68 °F
NNE 10kt
1ft
Friday
High: 75 °F
Light Wind
1ft
Friday Night
Low: 67 °F
E 10kt
< 1ft
Saturday
High: 80 °F
S 10kt
< 1ft
Saturday Night
Low: 71 °F
S 10kt
< 1ft
Sunday
High: 86 °F
SSW 15kt
1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:56 am CDT Aug 26, 2026
Forecast Valid: 4am CDT Aug 26, 2026-6pm CDT Sep 1, 2026

View Nearby Observations

Detailed Forecast

Wednesday

SSW wind 10 to 15 kt becoming W in the afternoon. A chance of showers and thunderstorms, mainly after 5pm. Waves around 1 ft.

Wednesday Night

NW wind 5 to 10 kt. A slight chance of showers before 7pm. Waves 1 ft or less.

Thursday

NW wind 5 to 10 kt becoming NE in the afternoon. Sunny. Waves 1 ft or less.

Thursday Night

NNE wind 5 to 10 kt. Mostly clear. Waves around 1 ft.

Friday

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

Friday Night

E wind 5 to 10 kt becoming S after midnight. Partly cloudy. Waves 1 ft or less.

Saturday

S wind 5 to 10 kt. Mostly sunny. Waves 1 ft or less.

Saturday Night

S wind around 10 kt. Mostly cloudy. Waves 1 ft or less.

Sunday

SSW wind 10 to 15 kt. Mostly sunny. Waves around 1 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.