Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from June 21, 04:00 PM CDT until June 23, 01:00 AM CDT

Last Update: 300 PM CDT Sat Jun 20 2026

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Chicago, IL Local Forecast Office

8NM ESE Chicago IL

Marine Zone Forecast

Tonight

North winds 10 to 15 kt becoming east around 5 kt overnight. Partly cloudy. Waves 1 ft or less.

Sunday

Northeast winds around 10 kt becoming east and increasing to 20 to 25 kt late in the afternoon. Showers in the afternoon. Waves 1 ft or less building to 2 to 4 ft.

Sunday Night

Northeast winds to 30 kt diminishing to 20 to 25 kt after midnight. Showers and slight chance of thunderstorms in the evening, then showers likely overnight. Waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.

Monday

North winds 20 to 25 kt. Slight chance of showers in the morning. Waves 4 to 6 ft occasionally to 8 ft.