Station Name: DES PLAINES RIVER IN LOCK CHANNEL AT ROCKDALE, IL
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 512 feet

Nearest Address:
Channahon Road
Rockdale, IL 60436
Will County

GPS Coordinates: 41.5, -88.1069444

Nearby Water Temperatures

Flood Warning issued June 17 at 8:06PM CDT until June 18 at 10:36PM CDT by NWS Chicago IL

Effective: Thu June 18, 2026, 1:06 AM
Expires: Thu June 18, 2026, 7:15 PM

...The Flood Warning continues for the following rivers in Illinois... Thorn Creek at Thornton affecting Cook County. For the Thorn Creek...including Thornton...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...Thorn Creek from Near Glenwood downstream to confluence with Little Calumet River, including the Thornton gauge. * WHEN...Until late tomorrow evening. * IMPACTS...At 11.5 feet, Glenwood Thornton Road threatened north of Glenwood. * ADDITIONAL DETAILS... - At 7:45 PM CDT Wednesday the stage was 8.4 feet. - Forecast...The river is expected to crest near 12 feet just after midnight tonight, then begin a slow fall. - Flood stage is 9.0 feet. - http://www.weather.gov/safety/flood

A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. Additional information is available at www.weather.gov. The next statement will be issued by Thursday afternoon.

Flood Warning issued June 17 at 8:03PM CDT until June 18 at 7:00PM CDT by NWS Chicago IL

Effective: Thu June 18, 2026, 1:03 AM
Expires: Thu June 18, 2026, 7:15 PM

...The Flood Warning is extended for the following rivers in Illinois...Indiana... Little Calumet River at Munster (Hohman Avenue) affecting Cook and Lake IN Counties. For the Little Calumet River...including Munster (Hohman Avenue)... Minor flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Little Calumet River from IN-912 in Hammond downstream to confluence with Thorn Creek in South Holland, including the Munster (Hohman Avenue) gauge. * WHEN...Until tomorrow evening. * IMPACTS...At 12.5 feet, Most areas outside of the levee-protected area are inundated in Hammond and Munster. * ADDITIONAL DETAILS... - At 7:00 PM CDT Wednesday the stage was 12.4 feet. - Forecast...The river is expected to crest of near 14 feet after midnight tonight. - Flood stage is 12.0 feet. - http://www.weather.gov/safety/flood

A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. Additional information is available at www.weather.gov. The next statement will be issued by Thursday afternoon.

Beach Hazards Statement issued June 17 at 9:55PM CDT until June 18 at 4:00AM CDT by NWS Chicago IL

Effective: Thu June 18, 2026, 2:55 AM
Expires: Thu June 18, 2026, 9:00 AM

* WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 3 to 5 ft expected. * WHERE...Lake IL, Northern Cook and Central Cook Counties. * WHEN...Through late tonight. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com.

Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures.

Small Craft Advisory issued June 17 at 9:44PM CDT until June 18 at 9:00AM CDT by NWS Chicago IL

Effective: Thu June 18, 2026, 2:44 AM
Expires: Thu June 18, 2026, 10:45 AM

* WHAT...West winds 25 to 30 kt and significant waves 5 to 6 ft occasionally to 8 ft. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...Until 9 AM CDT Thursday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.

Small Craft Advisory issued June 18 at 3:26AM CDT until June 18 at 9:00AM CDT by NWS Chicago IL

Effective: Thu June 18, 2026, 8:26 AM
Expires: Thu June 18, 2026, 2:00 PM

* WHAT...West winds to 25 kt and significant waves to 6 ft occasionally to 8 ft. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.