Severe Thunderstorms Tonight in the Mid-Atlantic; Tropical Storm Bertha in the Gulf

Scattered thunderstorms with severe gusts, hail and a tornado risk are possible near a cold front from the Ohio Valley to the Mid-Atlantic tonight. Tropical Storm Bertha is expected to bring tropical storm conditions to portions of the Gulf Coast from the panhandle of Florida into Louisiana through Wednesday. Read More >

Last Update: 240 PM CDT Tue Jul 21 2026

View Nearby Observations

For More Weather Information:

Chicago, IL Local Forecast Office

6NM SE Evanston IL

Marine Zone Forecast

Tonight
North to northeast winds 20 to 25 kt diminishing to 15 to 20 kt. Scattered showers in the evening, then isolated showers after midnight. Waves 3 to 5 ft building to 6 to 9 ft occasionally to 12 ft.
Wednesday
North winds 15 to 25 kt. Partly cloudy in the morning then clearing. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft occasionally to 8 ft.
Wednesday Night
Northeast winds 10 to 15 kt becoming north around 5 kt overnight. Mostly clear. Waves 3 to 5 ft subsiding to 2 to 4 ft.
Thursday
West winds around 5 kt becoming southeast 10 to 15 kt in the afternoon. Mostly sunny. Waves 1 to 2 ft.



Basemap Options
Click map to change the forecast location
Loading map...
240 PM CDT Tue Jul 21 2026
 
 

RADAR & SATELLITE IMAGES

Link to Local Radar Data Link to Satellite Data