Water Temperature of the Illinois River in Florence, IL

Current Water Temperature

66.2°F

Measurement Time: Saturday, April 18, 2026, 6:45 AM CDT

Temperature Locations

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Local Points of Interest

Florence Bridge

Illinois River

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

Illinois River, La Grange, IL (21.6 mi)
Mississippi River, Clarksville, MO (23.9 mi)
Mississippi River, Saverton, MO (34.1 mi)
Mississippi River, Cap Au Gris, MO (43.7 mi)
Mississippi River, Quincy, IL (47.4 mi)
Lick Creek, Springfield, IL (48.5 mi)
Sugar Creek, Chatham, IL (50.5 mi)
Mississippi River, Alton, IL (58.4 mi)
Missouri River, St Charles, MO (59 mi)
Mississippi River, Canton, MO (59.7 mi)
Mason Tazewell Drainage Ditch, Topeka, IL (60.4 mi)
Mississippi River, Keokuk, IA (66.4 mi)
Missouri River, Labadle, MO (74.8 mi)
Missouri River, Hermann, MO (77.8 mi)
Illinois River, Peoria, IL (86.4 mi)

Weather for Florence, Illinois

Current Weather

51.1°F
Sunny
Sunny
45.7°F
48°F
44%
NW 16.3 mph
18.8 mph
41.5°F
36.1°F
0 in
0%
9 mi
1020 mbar
7.1

Five Day Weather Forecast

Moderate rain
Sat
H: 57°F
L: 42°F
Sunny
Sun
H: 65°F
L: 40°F
Sunny
Mon
H: 64°F
L: 41°F
Moderate rain
Tue
H: 73°F
L: 53°F
Patchy rain nearby
Wed
H: 77°F
L: 57°F

Air Quality

AQI: 1 - Good
PM2.5: 3.15 μg/m3
PM10: 3.85 μg/m3
Carbon Monoxide: 152.85 μg/m3
Nitrogen Dioxide: 2.05 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 96 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 1:01 PM
Sunset: 7:43 PM
Daylight: 13 hrs 23 mins
Moonrise: 6:40 AM
Moon Transit: 2:06 PM
Moonset: 9:45 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

1:02 AM - 3:32 AM
1:36 PM - 4:06 PM

Minor Periods

9:15 PM - 10:45 PM
6:10 AM - 7:40 AM

Action Rating: 4 out of 5

Flood Warning issued April 17 at 10:06PM CDT by NWS St Louis MO

Effective: Fri April 17, 2026, 10:06 PM
Expires: Sun April 19, 2026, 10:15 AM

...The Flood Warning continues for the following river in Missouri and 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 Louisiana. * WHEN...Until further notice. * IMPACTS...At 17.0 feet, The parking area at the boat house floods. * ADDITIONAL DETAILS... - At 9:30 PM CDT Friday the stage was 16.4 feet. - Forecast...The river is expected to rise to a crest of 18.1 feet Monday afternoon. - Flood stage is 15.0 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 17 at 10:06PM CDT by NWS St Louis MO

Effective: Fri April 17, 2026, 10:06 PM
Expires: Sun April 19, 2026, 10:15 AM

...The Flood Warning continues for the following river in Missouri and 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 9:15 PM CDT Friday the stage was 17.5 feet. - Forecast...The river is expected to rise to a crest of 19.4 feet Monday 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 17 at 10:06PM CDT by NWS St Louis MO

Effective: Fri April 17, 2026, 10:06 PM
Expires: Sun April 19, 2026, 10:15 AM

...The Flood Warning continues for the following river in Missouri and 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. * ADDITIONAL DETAILS... - At 6:00 PM CDT Friday the stage was 15.8 feet. - Forecast...The river is expected to rise above flood stage late tomorrow morning. - 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


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


Saturday, April 18, 2026

Weather Forecast

Moderate rain
57°F
41.7°F
48.9°F
66%
0.32 in
88%
0%
18.8 mph
7.1


Air Quality

AQI: 1 - Good
PM2.5: 4.9 μg/m3
PM10: 5.28 μg/m3
Carbon Monoxide: 158.77 μg/m3
Nitrogen Dioxide: 2.97 μg/m3
Sulphur Dioxide: 1.28 μg/m3
Ozone: 82.4 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 1:01 PM
Sunset: 7:43 PM
Daylight: 13 hrs 23 mins
Moonrise: 6:40 AM
Moon Transit: 2:06 PM
Moonset: 9:45 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

1:02 AM - 3:32 AM
1:36 PM - 4:06 PM

Minor Periods

9:15 PM - 10:45 PM
6:10 AM - 7:40 AM

Action Rating: 4 out of 5

Sunday, April 19, 2026

Weather Forecast

Sunny
65.3°F
39.8°F
50.8°F
63%
0 in
0%
0%
17 mph
6.5


Air Quality

AQI: 1 - Good
PM2.5: 4.6 μg/m3
PM10: 5.45 μg/m3
Carbon Monoxide: 161.49 μg/m3
Nitrogen Dioxide: 4.19 μg/m3
Sulphur Dioxide: 1.37 μg/m3
Ozone: 77.56 μg/m3

Astronomical

Sunrise: 6:19 AM
Sun Transit: 1:01 PM
Sunset: 7:44 PM
Daylight: 13 hrs 25 mins
Moonrise: 7:20 AM
Moon Transit: 3:07 PM
Moonset: 11:04 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%

Best Times for Fishing or Hunting

Major Periods

2:01 AM - 4:31 AM
2:37 PM - 5:07 PM

Minor Periods

12:00 AM - 12:00 AM
6:50 AM - 8:20 AM

Action Rating: 2 out of 5

Monday, April 20, 2026

Weather Forecast

Sunny
63.8°F
41.2°F
51.8°F
64%
0 in
0%
0%
11.6 mph
7.2


Air Quality

AQI: 1 - Good
PM2.5: 7.44 μg/m3
PM10: 8.24 μg/m3
Carbon Monoxide: 171.25 μg/m3
Nitrogen Dioxide: 4.54 μg/m3
Sulphur Dioxide: 1.89 μg/m3
Ozone: 82.68 μg/m3

Astronomical

Sunrise: 6:18 AM
Sun Transit: 1:01 PM
Sunset: 7:45 PM
Daylight: 13 hrs 28 mins
Moonrise: 8:10 AM
Moon Transit: 4:11 PM
Moonset: 12:04 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.8%

Best Times for Fishing or Hunting

Major Periods

3:04 AM - 5:34 AM
3:41 PM - 6:11 PM

Minor Periods

7:40 AM - 9:10 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Tuesday, April 21, 2026

Weather Forecast

Moderate rain
72.9°F
53.3°F
61.6°F
71%
0.22 in
80%
0%
20.1 mph
4.8


Air Quality

AQI: 1 - Good
PM2.5: 5.98 μg/m3
PM10: 6.72 μg/m3
Carbon Monoxide: 171.73 μg/m3
Nitrogen Dioxide: 4.21 μg/m3
Sulphur Dioxide: 2.36 μg/m3
Ozone: 91.16 μg/m3

Astronomical

Sunrise: 6:16 AM
Sun Transit: 1:01 PM
Sunset: 7:46 PM
Daylight: 13 hrs 30 mins
Moonrise: 9:11 AM
Moon Transit: 5:16 PM
Moonset: 12:17 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.8%

Best Times for Fishing or Hunting

Major Periods

4:09 AM - 6:39 AM
4:46 PM - 7:16 PM

Minor Periods

8:41 AM - 10:11 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, April 22, 2026

Weather Forecast

Patchy rain nearby
76.8°F
57.1°F
65.1°F
81%
0.01 in
87%
0%
11.6 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 4.57 μg/m3
PM10: 4.73 μg/m3
Carbon Monoxide: 169.26 μg/m3
Nitrogen Dioxide: 4.32 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 78 μg/m3

Astronomical

Sunrise: 6:15 AM
Sun Transit: 1:00 PM
Sunset: 7:48 PM
Daylight: 13 hrs 32 mins
Moonrise: 10:21 AM
Moon Transit: 6:19 PM
Moonset: 1:19 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%

Best Times for Fishing or Hunting

Major Periods

5:13 AM - 7:43 AM
5:49 PM - 8:19 PM

Minor Periods

9:51 AM - 11:21 AM
12:49 AM - 2:19 AM

Action Rating: 2 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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