Station Name: ILLINOIS RIVER AT FLORENCE, IL
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 427 feet

Nearest Address:
State Rte 100
Florence, IL 62363
Pike County

GPS Coordinates: 39.63277778, -90.6077778

Nearby Water Temperatures

Frost Advisory issued April 18 at 1:48PM CDT until April 19 at 8:00AM CDT by NWS Lincoln IL

Effective: Sat April 18, 2026, 1:48 PM
Expires: Sun April 19, 2026, 5:00 AM

* WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Portions of central, east central, southeast, and west central Illinois. * WHEN...From 1 AM to 8 AM CDT Sunday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.

Frost Advisory issued April 19 at 1:28AM CDT until April 19 at 8:00AM CDT by NWS Lincoln IL

Effective: Sun April 19, 2026, 1:28 AM
Expires: Sun April 19, 2026, 8:00 AM

* WHAT...For the first Frost Advisory, temperatures as low as 35 will result in frost formation. For the second Frost Advisory, temperatures as low as 34 will result in frost formation. * WHERE...Portions of central, east central, southeast, and west central Illinois. * WHEN...For the first Frost Advisory, until 8 AM CDT this morning. For the second Frost Advisory, from 1 AM to 8 AM CDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.

Frost Advisory issued April 19 at 1:28AM CDT until April 20 at 8:00AM CDT by NWS Lincoln IL

Effective: Sun April 19, 2026, 1:28 AM
Expires: Sun April 19, 2026, 8:00 AM

* WHAT...For the first Frost Advisory, temperatures as low as 35 will result in frost formation. For the second Frost Advisory, temperatures as low as 34 will result in frost formation. * WHERE...Portions of central, east central, southeast, and west central Illinois. * WHEN...For the first Frost Advisory, until 8 AM CDT this morning. For the second Frost Advisory, from 1 AM to 8 AM CDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.

Flood Warning issued April 18 at 12:05PM CDT by NWS St Louis MO

Effective: Sat April 18, 2026, 12:05 PM
Expires: Mon April 20, 2026, 12:15 AM

...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Canton. 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 11:15 AM CDT Saturday the stage was 18.6 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:15 AM CDT Saturday was 18.6 feet. - Forecast...The river is expected to rise to a crest of 19.8 feet early tomorrow afternoon. - Flood stage is 17.0 feet.

Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

Flood Warning issued April 18 at 12:05PM CDT by NWS St Louis MO

Effective: Sat April 18, 2026, 12:05 PM
Expires: Mon April 20, 2026, 12:15 AM

...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Canton. 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 Saverton. * WHEN...Until further notice. * ADDITIONAL DETAILS... - At 10:00 AM CDT Saturday the stage was 16.8 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:00 AM CDT Saturday was 16.8 feet. - Forecast...The river is expected to rise to a crest of 19.3 feet early tomorrow afternoon. - Flood stage is 16.0 feet.

Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx