Flood Watch: 6/11/26: Severe Flood Watch: Unruly Skies Unleash Potential Deluge as Chicago Awaits Overnight Downpour

by Weather Write | Jun 11, 2026 | Weather | 0 comments

Flood Watch

* WHAT…Flash flooding caused by excessive rainfall continues to be possible.

* WHERE…Portions of northeast Illinois, including the following areas, Central Cook, DuPage, Eastern Will, Kankakee, Lake IL, Northern Cook, Northern Will, Southern Cook and Southern Will and northwest Indiana, including the following areas, Lake IN and Porter.

* WHEN…Until 11 PM CDT this evening.

* IMPACTS…Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Underpasses may be flooded. Roads and streets may be flooded.

* ADDITIONAL DETAILS… – Heavy rain producing showers and storms will continue this evening, with rain rates briefly up to 1 per hour. The most likely areas for flooding include urban areas and locations and received heavy rainfall over the last few days. – http://www.weather.gov/safety/flood

From 2026-06-12T01:43:00+00:00 · until 2026-06-12T04:00:00+00:00 · Source: NWS Chicago IL

Moderate Flood Watch is in effect until 11 PM CDT this evening, warning of potential flash flooding due to excessive rainfall.

Current conditions in Chicago are 73.2°F with a light wind from the south at 7.8 mph. The skies above are overcast, contributing to a humid atmosphere as the city braces for the continuing effects of today’s weather. Earlier today, temperatures reached a high of 81.5°F, while the low dipped to 66.2°F. Despite the warm day, the city experienced significant winds approaching 18.3 mph and an 88% chance of precipitation, resulting in a total of 0.79 inches of rain.

As night falls, the temperature is expected to drop slightly, with a low of 71.1°F. The wind will persist, continuing to gust up to 18.3 mph. The chance of precipitation remains high at 88%, and the overcast conditions will likely persist throughout the night.

Residents should remain cautious, especially in areas prone to flooding, as creeks and low-lying paths may overflow due to the heavy rainfall earlier today and the ongoing flood watch alert.

Today's Details

High
82°F
Low
66°F
Wind
18 mph
Humidity
90%
UV Index
7.6 (High)
Precip
88% chance · 0.79 in
Now
73°F · feels 78°F
Sunrise
5:14am
Sunset
8:25pm

7-Day Forecast

Day High Low Conditions
Thursday 82°F 66°F Rain: heavy
Friday 77°F 60°F Overcast
Saturday 83°F 61°F Drizzle: moderate
Sunday 71°F 60°F Drizzle: light
Monday 75°F 59°F Overcast
Tuesday 76°F 61°F Drizzle: light
Wednesday 73°F 63°F Rain showers: moderate

Next 24 Hours