Water Temperature of the Mississippi River in Illinois City, IL

Current Water Temperature

32.0°F

Measurement Time: Saturday, December 13, 2025, 9:00 AM CST

Temperature Locations

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Local Points of Interest

Muscatine, IA

Mississippi River

Station Name: Illinois City L&D 16
Data Source: USGS

Elevation Above Sea Level: 538 feet

Nearest Address:
33153 102nd Ave W
Illinois City, IL 61259
Rock Island County

GPS Coordinates: 41.4256, -91.0094

Nearby Water Temperatures

Mississippi River, New Boston, IL (16.3 mi)
Mississippi River, Rock Island, IL (23.9 mi)
Mississippi River, Le Claire, IA (33.1 mi)
Mississippi River, Gladstone, IL (37.6 mi)
Mississippi River, Camanche, IA (46.2 mi)
Beaver Slough, Clinton, IA (50.6 mi)
North Fork Maquoketa River, Maquoketa, IA (53 mi)
Mississippi River, Fulton, IL (54.6 mi)
Mississippi River, Fulton, IL (54.9 mi)
Morgan Creek, Cedar Rapids, IA (54.9 mi)
Cedar River, Palo, IA (59.8 mi)
Mississippi River, Bellevue, IA (65.1 mi)
Mississippi River, Keokuk, IA (73.8 mi)
Des Moines River, Ottumwa, IA (78.3 mi)
Mississippi River, Dubuque, IA (79.2 mi)

Weather for Illinois City, Illinois

Current Weather

91.8°F
Partly cloudy
Partly cloudy
104°F
111.2°F
63%
S 17.2 mph
20.6 mph
94.5°F
78.2°F
0 in
75%
9 mi
1010 mbar
5.6

Five Day Weather Forecast

Sunny
Mon
H: 95°F
L: 75°F
Sunny
Tue
H: 90°F
L: 74°F
Sunny
Wed
H: 90°F
L: 72°F
Sunny
Thu
H: 90°F
L: 73°F
Sunny
Fri
H: 90°F
L: 72°F

Air Quality

PM2.5: 7.5 μg/m3
PM10: 9.5 μg/m3
Carbon Monoxide: 111 μg/m3
Nitrogen Dioxide: 1 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 95 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 1:07 PM
Sunset: 8:42 PM
Daylight: 15 hrs 9 mins
Moonrise: 9:01 PM
Moon Transit: 12:30 AM
Moonset: 4:48 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 2:30 AM
12:18 AM - 2:48 PM

Minor Periods

8:31 PM - 10:01 PM
4:18 AM - 5:48 AM

Action Rating: 5 out of 5

Heat Advisory issued June 29 at 2:52AM CDT until July 3 at 12:00AM CDT by NWS Lincoln IL

Effective: Mon June 29, 2026, 2:52 AM
Expires: Mon June 29, 2026, 4:00 PM

* WHAT...Heat index values 105 to 110 expected. * WHERE...All of central and southeast Illinois. * WHEN...From 11 AM this morning to midnight CDT Thursday Night. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.


Extreme Heat Warning issued June 29 at 10:51AM CDT until July 1 at 10:00PM CDT by NWS Quad Cities IA IL

Effective: Mon June 29, 2026, 10:51 AM
Expires: Mon June 29, 2026, 7:00 PM

* WHAT...Dangerously hot and humid conditions with multiple days of heat index values of 100 to 110 expected, along with nighttime lows not falling below the mid to upper 70s. * WHERE...Portions of northwest and west central Illinois, east central and southeast Iowa, and northeast Missouri. * WHEN...Until 10 PM CDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...The extreme heat may persist through late week, but thunderstorms and associated clouds may interrupt the heat at times Thursday and Friday.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
Monday, June 29, 2026

Weather Forecast

Sunny
95.2°F
75.4°F
84.6°F
75%
0 in
7%
0%
18.1 mph
10.1


Air Quality

AQI: 1 - Good
PM2.5: 6.59 μg/m3
PM10: 7.86 μg/m3
Carbon Monoxide: 112.33 μg/m3
Nitrogen Dioxide: 2.1 μg/m3
Sulphur Dioxide: 0.87 μg/m3
Ozone: 65.38 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 1:07 PM
Sunset: 8:42 PM
Daylight: 15 hrs 9 mins
Moonrise: 9:01 PM
Moon Transit: 12:30 AM
Moonset: 4:48 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 2:30 AM
12:18 AM - 2:48 PM

Minor Periods

8:31 PM - 10:01 PM
4:18 AM - 5:48 AM

Action Rating: 5 out of 5

Tuesday, June 30, 2026

Weather Forecast

Sunny
89.5°F
73.8°F
81.4°F
79%
0 in
8%
0%
16.8 mph
10.1


Air Quality

AQI: 2 - Moderate
PM2.5: 15.85 μg/m3
PM10: 23.78 μg/m3
Carbon Monoxide: 112.92 μg/m3
Nitrogen Dioxide: 2.12 μg/m3
Sulphur Dioxide: 1.04 μg/m3
Ozone: 73.54 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 1:07 PM
Sunset: 8:42 PM
Daylight: 15 hrs 8 mins
Moonrise: 9:40 PM
Moon Transit: 1:21 AM
Moonset: 5:46 AM
Moon Phase: Full
Moon Illumination: 98.6%

Best Times for Fishing or Hunting

Major Periods

12:51 AM - 3:21 AM
1:08 PM - 3:38 PM

Minor Periods

9:10 PM - 10:40 PM
5:16 AM - 6:46 AM

Action Rating: 5 out of 5

Wednesday, July 1, 2026

Weather Forecast

Sunny
90.1°F
71.8°F
80.8°F
79%
0 in
17%
0%
16.6 mph
10.5


Air Quality

AQI: 1 - Good
PM2.5: 11.66 μg/m3
PM10: 16.62 μg/m3
Carbon Monoxide: 126.35 μg/m3
Nitrogen Dioxide: 2.3 μg/m3
Sulphur Dioxide: 0.99 μg/m3
Ozone: 77.17 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 1:08 PM
Sunset: 8:42 PM
Daylight: 15 hrs 8 mins
Moonrise: 10:13 PM
Moon Transit: 2:11 AM
Moonset: 6:48 AM
Moon Phase: Full
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

1:41 AM - 4:11 AM
1:57 PM - 4:27 PM

Minor Periods

9:43 PM - 11:13 PM
6:18 AM - 7:48 AM

Action Rating: 3 out of 5

Thursday, July 2, 2026

Weather Forecast

Sunny
89.6°F
73.3°F
81.3°F
80%
0.03 in
40%
0%
13.2 mph
9.3


Air Quality

AQI: 1 - Good
PM2.5: 5.96 μg/m3
PM10: 7.38 μg/m3
Carbon Monoxide: 165 μg/m3
Nitrogen Dioxide: 2.44 μg/m3
Sulphur Dioxide: 0.92 μg/m3
Ozone: 75.75 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 1:08 PM
Sunset: 8:42 PM
Daylight: 15 hrs 7 mins
Moonrise: 10:40 PM
Moon Transit: 3:00 AM
Moonset: 7:53 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

2:30 AM - 5:00 AM
2:43 PM - 5:13 PM

Minor Periods

10:10 PM - 11:40 PM
7:23 AM - 8:53 AM

Action Rating: 2 out of 5

Friday, July 3, 2026

Weather Forecast

Sunny
90.3°F
72.1°F
81°F
82%
0 in
17%
0%
13 mph
9.7


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 1:08 PM
Sunset: 8:41 PM
Daylight: 15 hrs 6 mins
Moonrise: 11:03 PM
Moon Transit: 3:44 AM
Moonset: 8:58 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.3%

Best Times for Fishing or Hunting

Major Periods

3:14 AM - 5:44 AM
3:28 PM - 5:58 PM

Minor Periods

12:00 AM - 12:00 AM
8:28 AM - 9:58 AM

Action Rating: 3 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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