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Aug 16-17, 2025: Severe Weather and Flash Flooding

Hazardous Weather Conditions

Current conditions at

Chicago, Chicago-O'Hare International Airport (KORD)

Lat: 41.98°NLon: 87.9°WElev: 666ft.

Light Rain

72°F

22°C

Humidity	97%
Wind Speed	SE 7 mph
Barometer	29.98 in (1014.6 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Last update	18 Aug 10:51 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Evanston IL

Flood Watch August 18, 11:29pm until August 19, 04:00am

Click here for hazard details and duration

Flood Watch

Flood Watch August 18, 11:29pm until August 19, 04:00am
NOW until 4:00am Tue
Flood Watch
Tonight
Low: 74 °F
T-storms
Likely
Tuesday
High: 84 °F
Chance
T-storms
Tuesday Night
Low: 71 °F
Mostly Cloudy
Wednesday
High: 77 °F
Mostly Sunny
Wednesday Night
Low: 70 °F
Mostly Clear
Thursday
High: 78 °F
Sunny
Thursday Night
Low: 68 °F
Mostly Clear
Friday
High: 83 °F
Sunny

Detailed Forecast

Tonight

Showers and thunderstorms likely, mainly before 1am. Cloudy, with a low around 74. South southwest wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Tuesday

A chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. West wind around 10 mph becoming north in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 30%.

Tuesday Night

Mostly cloudy, with a low around 71. North wind around 10 mph, with gusts as high as 15 mph.

Wednesday

Mostly sunny, with a high near 77. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

Wednesday Night

Mostly clear, with a low around 70. North wind 5 to 10 mph, with gusts as high as 20 mph.

Thursday

Sunny, with a high near 78.

Thursday Night

Mostly clear, with a low around 68.

Friday

Sunny, with a high near 83.