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
Last Update: 921 AM CDT Sat Sep 19 2026
For More Weather Information:
8NM ESE Chicago IL
Marine Zone Forecast
Rest Of Today
Southeast winds 15 to 20 kt diminishing to around 10 kt in the afternoon. Showers and a chance of thunderstorms. Waves 2 to 4 ft subsiding to 1 to 2 ft.
Tonight
Southeast winds 10 to 15 kt becoming northeast 15 to 20 kt overnight. Showers with thunderstorms likely. Waves 1 to 3 ft.
Sunday
Northeast winds 15 to 25 kt increasing to 30 kt. Showers likely and a chance of thunderstorms in the morning, then chance of showers in the afternoon. Waves building to 5 to 8 ft occasionally to 10 ft. A small craft advisory will likely be needed.
Sunday Night
Northeast winds to 30 kt becoming east 20 to 25 kt. Chance of showers in the evening, then slight chance of showers overnight. Waves 6 to 9 ft occasionally to 12 ft.
Additional Forecasts and Information
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