Station Name: Quincy 3SSW - L&D 21
Data Source: USGS

Elevation Above Sea Level: 459 feet

Nearest Address:
957 W Lock and Dam Rd
Quincy, IL 62305
Adams County

GPS Coordinates: 39.9035, -91.4284

Nearby Water Temperatures

Flood Watch issued April 17 at 1:11PM CDT until April 18 at 4:00AM CDT by NWS St Louis MO

Effective: Fri April 17, 2026, 1:11 PM
Expires: Sat April 18, 2026, 4:00 AM

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of Illinois, including the following areas, Adams IL, Brown IL, Calhoun IL, Greene IL, Jersey IL, Macoupin IL, Montgomery IL and Pike IL and Missouri, including the following areas, Audrain MO, Knox MO, Lewis MO, Lincoln MO, Marion MO, Monroe MO, Montgomery MO, Pike MO, Ralls MO and Shelby MO. * WHEN...Through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Storm drains and ditches may become clogged with debris. * ADDITIONAL DETAILS... - Rainfall amounts of up to 3 inches may fall in this area and cause localized flooding.

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

Flood Warning issued April 16 at 10:12PM CDT by NWS St Louis MO

Effective: Thu April 16, 2026, 10:12 PM
Expires: Sat April 18, 2026, 10:15 AM

...The Flood Warning continues for the following rivers in Illinois...Missouri... Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Hannibal. * WHEN...Until further notice. * IMPACTS...At 18.0 feet, The northern end of Southside Recreation #2 Park along Bear Creek begins flooding at this height. Gate wells are shut down to prevent the sewers from backing up. Also at this level pumps are set to standby. * ADDITIONAL DETAILS... - At 9:15 PM CDT Thursday the stage was 17.4 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:15 PM CDT Thursday was 17.6 feet. - Forecast...The river is expected to rise to 18.3 feet Wednesday morning. Additional rises are possible thereafter. - Flood stage is 17.0 feet.

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Rainfall heavier than forecast could cause river levels to rise even higher than predicted. The National Weather Service will monitor this developing situation and issue follow up statements as conditions change. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

Flood Warning issued April 17 at 12:41PM CDT by NWS St Louis MO

Effective: Fri April 17, 2026, 12:41 PM
Expires: Sun April 19, 2026, 12:45 AM

...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Hannibal. * WHEN...Until further notice. * IMPACTS...At 19.0 feet, The Corps of Engineers begins flood fight procedures. At this level, preparations are made to install two flood gates at Hill Street and Center Street if the forecast exceeds 20.5 feet. * ADDITIONAL DETAILS... - At 12:15 PM CDT Friday the stage was 17.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 12:15 PM CDT Friday was 17.5 feet. - Forecast...The river is expected to rise to a crest of 18.9 feet Monday morning. - Flood stage is 17.0 feet.

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Rainfall heavier than forecast could cause river levels to rise even higher than predicted. The National Weather Service will monitor this developing situation and issue follow up statements as conditions change. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

Flood Warning issued April 16 at 10:12PM CDT by NWS St Louis MO

Effective: Thu April 16, 2026, 10:12 PM
Expires: Sat April 18, 2026, 10:15 AM

...The Flood Warning continues for the following rivers in Illinois...Missouri... Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Saverton. * WHEN...Until further notice. * IMPACTS...At 15.5 feet, An access road to riverside raised homes on the riverward side of the Sny levee begins to flood near this level. * ADDITIONAL DETAILS... - At 8:00 PM CDT Thursday the stage was 15.9 feet. - Forecast...The river is expected to rise above flood stage Saturday morning and continue rising to 17.0 feet early Wednesday morning. Additional rises are possible thereafter. - Flood stage is 16.0 feet.

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Rainfall heavier than forecast could cause river levels to rise even higher than predicted. The National Weather Service will monitor this developing situation and issue follow up statements as conditions change. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

Flood Warning issued April 17 at 12:41PM CDT by NWS St Louis MO

Effective: Fri April 17, 2026, 12:41 PM
Expires: Sun April 19, 2026, 12:45 AM

...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Saverton. * WHEN...Until further notice. * IMPACTS...At 15.5 feet, An access road to riverside raised homes on the riverward side of the Sny levee begins to flood near this level. * ADDITIONAL DETAILS... - At 10:00 AM CDT Friday the stage was 15.8 feet. - Forecast...The river is expected to rise above flood stage tomorrow morning and continue rising to a crest of 17.9 feet Monday evening. - Flood stage is 16.0 feet.

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Rainfall heavier than forecast could cause river levels to rise even higher than predicted. The National Weather Service will monitor this developing situation and issue follow up statements as conditions change. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx