Water Temperature of the Rock River in Byron, IL

Current Water Temperature

75.9°F

Measurement Time: Tuesday, June 9, 2026, 10:15 PM CDT

Temperature Locations

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Local Points of Interest

River Park East; Hamas Park; Sunshine Park; Byron Forest Preserve District

Rock River

Station Name: ROCK RIVER AT BYRON, IL
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 679 feet

Nearest Address:
State Rte 72
Byron, IL 61010
Ogle County

GPS Coordinates: 42.12218889, -89.2553639

Nearby Water Temperatures

Mississippi River, Fulton, IL (48.7 mi)
Mississippi River, Fulton, IL (48.9 mi)
Beaver Slough, Clinton, IA (52.2 mi)
Fox River, McHenry, IL (53.2 mi)
Mississippi River, Camanche, IA (56.4 mi)
Illinois River, Utica, IL (56.9 mi)
Sugar River, Verona, WI (59 mi)
Mississippi River, Bellevue, IA (60.5 mi)
Badger Mill Creek, Verona, WI (60.8 mi)
Swan Creek, Fitchburg, WI (60.9 mi)
Illinois River, Marseilles, IL (61.7 mi)
Fox River, Burlington, WI (62.5 mi)
Lake Monona, Madison, WI (65.4 mi)
Eagle Spring Lake, Mukwonago, WI (65.6 mi)
Illinois River, Seneca, IL (65.7 mi)

Weather for Byron, Illinois

Current Weather

75°F
Overcast
Overcast
79.4°F
76.9°F
94%
SW 10.3 mph
18.5 mph
72.5°F
70.3°F
0 in
100%
8 mi
1010 mbar
0

Five Day Weather Forecast

Heavy rain
Wed
H: 93°F
L: 72°F
Moderate rain
Thu
H: 88°F
L: 62°F
Sunny
Fri
H: 73°F
L: 54°F
Sunny
Sat
H: 80°F
L: 57°F
Patchy rain nearby
Sun
H: 73°F
L: 51°F

Air Quality

AQI: 1 - Good
PM2.5: 6.4 μg/m3
PM10: 6.7 μg/m3
Carbon Monoxide: 132 μg/m3
Nitrogen Dioxide: 7.4 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 64 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 12:56 AM
Sunset: 8:33 PM
Daylight: 15 hrs 12 mins
Moonrise: 1:55 AM
Moon Transit: 8:36 AM
Moonset: 3:32 PM
Moon Phase: Waning Crescent
Moon Illumination: 13.1%

Best Times for Fishing or Hunting

Major Periods

8:06 AM - 10:36 AM
8:37 PM - 11:07 PM

Minor Periods

3:02 PM - 4:32 PM
1:25 AM - 2:55 AM

Action Rating: 3 out of 5

Wednesday, June 10, 2026

Weather Forecast

Heavy rain
93.2°F
72°F
79.4°F
81%
1.25 in
75%
0%
20.4 mph
10.1


Air Quality

AQI: 1 - Good
PM2.5: 5.5 μg/m3
PM10: 5.85 μg/m3
Carbon Monoxide: 129.04 μg/m3
Nitrogen Dioxide: 5.2 μg/m3
Sulphur Dioxide: 0.63 μg/m3
Ozone: 68.29 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 12:56 AM
Sunset: 8:33 PM
Daylight: 15 hrs 12 mins
Moonrise: 1:55 AM
Moon Transit: 8:36 AM
Moonset: 3:32 PM
Moon Phase: Waning Crescent
Moon Illumination: 13.1%

Best Times for Fishing or Hunting

Major Periods

8:06 AM - 10:36 AM
8:37 PM - 11:07 PM

Minor Periods

3:02 PM - 4:32 PM
1:25 AM - 2:55 AM

Action Rating: 3 out of 5

Thursday, June 11, 2026

Weather Forecast

Moderate rain
88°F
62.1°F
75.3°F
84%
0.63 in
82%
0%
24.6 mph
5.6


Air Quality

AQI: 1 - Good
PM2.5: 2.57 μg/m3
PM10: 3.03 μg/m3
Carbon Monoxide: 122.21 μg/m3
Nitrogen Dioxide: 4.68 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 59.58 μg/m3

Astronomical

Sunrise: 5:20 AM
Sun Transit: 12:56 AM
Sunset: 8:33 PM
Daylight: 15 hrs 13 mins
Moonrise: 2:20 AM
Moon Transit: 9:27 AM
Moonset: 4:49 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.5%

Best Times for Fishing or Hunting

Major Periods

8:57 AM - 11:27 AM
9:30 PM - 12:00 PM

Minor Periods

4:19 PM - 5:49 PM
1:50 AM - 3:20 AM

Action Rating: 2 out of 5

Friday, June 12, 2026

Weather Forecast

Sunny
72.7°F
54.3°F
64.3°F
75%
0 in
7%
0%
17.9 mph
9.1


Air Quality

AQI: 1 - Good
PM2.5: 2.08 μg/m3
PM10: 2.42 μg/m3
Carbon Monoxide: 120.42 μg/m3
Nitrogen Dioxide: 5.1 μg/m3
Sulphur Dioxide: 0.28 μg/m3
Ozone: 60.5 μg/m3

Astronomical

Sunrise: 5:20 AM
Sun Transit: 12:56 AM
Sunset: 8:34 PM
Daylight: 15 hrs 14 mins
Moonrise: 2:50 AM
Moon Transit: 10:23 AM
Moonset: 6:11 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:53 AM - 12:23 AM

Minor Periods

5:41 PM - 7:11 PM
2:20 AM - 3:50 AM

Action Rating: 2 out of 5

Saturday, June 13, 2026

Weather Forecast

Sunny
79.9°F
56.9°F
67.6°F
71%
0 in
7%
0%
12.3 mph
8.9


Air Quality

AQI: 1 - Good
PM2.5: 2.7 μg/m3
PM10: 2.93 μg/m3
Carbon Monoxide: 135.1 μg/m3
Nitrogen Dioxide: 5.71 μg/m3
Sulphur Dioxide: 0.82 μg/m3
Ozone: 68.63 μg/m3

Astronomical

Sunrise: 5:20 AM
Sun Transit: 12:57 AM
Sunset: 8:34 PM
Daylight: 15 hrs 14 mins
Moonrise: 3:28 AM
Moon Transit: 11:24 AM
Moonset: 7:32 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:54 AM - 1:24 PM

Minor Periods

7:02 PM - 8:32 PM
2:58 AM - 4:28 AM

Action Rating: 3 out of 5

Sunday, June 14, 2026

Weather Forecast

Patchy rain nearby
73°F
51.4°F
61.6°F
80%
0.13 in
65%
0%
9.4 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 2.51 μg/m3
PM10: 2.75 μg/m3
Carbon Monoxide: 158.13 μg/m3
Nitrogen Dioxide: 6.79 μg/m3
Sulphur Dioxide: 0.44 μg/m3
Ozone: 52.13 μg/m3

Astronomical

Sunrise: 5:20 AM
Sun Transit: 12:57 AM
Sunset: 8:35 PM
Daylight: 15 hrs 15 mins
Moonrise: 4:19 AM
Moon Transit: 12:30 AM
Moonset: 8:47 PM
Moon Phase: New
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

8:17 PM - 9:47 PM
3:49 AM - 5:19 AM

Action Rating: 5 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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