Water Temperature of the Rock River in Byron, IL

Current Water Temperature

72.1°F

Measurement Time: Saturday, June 20, 2026, 1:15 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
Sunny
Sunny
76.7°F
78.1°F
46%
WNW 7.2 mph
11.3 mph
76.2°F
55.8°F
0 in
25%
9 mi
1014 mbar
0.5

Five Day Weather Forecast

Sunny
Sat
H: 80°F
L: 57°F
Moderate rain
Sun
H: 64°F
L: 55°F
Partly Cloudy
Mon
H: 73°F
L: 51°F
Sunny
Tue
H: 76°F
L: 51°F
Patchy rain nearby
Wed
H: 75°F
L: 56°F

Air Quality

AQI: 1 - Good
PM2.5: 1.7 μg/m3
PM10: 1.8 μg/m3
Carbon Monoxide: 108 μg/m3
Nitrogen Dioxide: 3 μg/m3
Sulphur Dioxide: 0.2 μg/m3
Ozone: 65 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 12:58 AM
Sunset: 8:37 PM
Daylight: 15 hrs 16 mins
Moonrise: 11:46 AM
Moon Transit: 6:14 PM
Moonset: 12:10 AM
Moon Phase: Waxing Crescent
Moon Illumination: 27.8%

Best Times for Fishing or Hunting

Major Periods

5:28 AM - 7:58 AM
5:44 PM - 8:14 PM

Minor Periods

11:16 AM - 12:46 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Saturday, June 20, 2026

Weather Forecast

Sunny
79.9°F
57°F
68.6°F
64%
0 in
4%
0%
12.3 mph
9.1


Air Quality

AQI: 1 - Good
PM2.5: 4.51 μg/m3
PM10: 4.78 μg/m3
Carbon Monoxide: 114.67 μg/m3
Nitrogen Dioxide: 6.24 μg/m3
Sulphur Dioxide: 0.37 μg/m3
Ozone: 58.42 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 12:58 AM
Sunset: 8:37 PM
Daylight: 15 hrs 16 mins
Moonrise: 11:46 AM
Moon Transit: 6:14 PM
Moonset: 12:10 AM
Moon Phase: Waxing Crescent
Moon Illumination: 27.8%

Best Times for Fishing or Hunting

Major Periods

5:28 AM - 7:58 AM
5:44 PM - 8:14 PM

Minor Periods

11:16 AM - 12:46 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Sunday, June 21, 2026

Weather Forecast

Moderate rain
63.5°F
54.5°F
59°F
88%
0.58 in
84%
0%
12.5 mph
1.7


Air Quality

AQI: 1 - Good
PM2.5: 4.39 μg/m3
PM10: 4.5 μg/m3
Carbon Monoxide: 156.54 μg/m3
Nitrogen Dioxide: 13.65 μg/m3
Sulphur Dioxide: 0.87 μg/m3
Ozone: 44.46 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 12:58 AM
Sunset: 8:37 PM
Daylight: 15 hrs 16 mins
Moonrise: 12:54 AM
Moon Transit: 6:58 PM
Moonset: 12:32 AM
Moon Phase: First Quarter
Moon Illumination: 38.5%

Best Times for Fishing or Hunting

Major Periods

6:12 AM - 8:42 AM
6:28 PM - 8:58 PM

Minor Periods

12:24 AM - 1:54 PM
12:02 AM - 1:32 AM

Action Rating: 3 out of 5

Monday, June 22, 2026

Weather Forecast

Partly Cloudy
72.9°F
51.2°F
61.6°F
80%
0 in
17%
0%
12.8 mph
8.9


Air Quality

AQI: 1 - Good
PM2.5: 3.56 μg/m3
PM10: 3.68 μg/m3
Carbon Monoxide: 109.63 μg/m3
Nitrogen Dioxide: 4.38 μg/m3
Sulphur Dioxide: 0.54 μg/m3
Ozone: 66.33 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 1:00 PM
Sunset: 8:37 PM
Daylight: 15 hrs 16 mins
Moonrise: 1:59 PM
Moon Transit: 7:40 PM
Moonset: 12:52 AM
Moon Phase: First Quarter
Moon Illumination: 49.7%

Best Times for Fishing or Hunting

Major Periods

6:55 AM - 9:25 AM
7:10 PM - 9:40 PM

Minor Periods

1:29 PM - 2:59 PM
12:22 AM - 1:52 AM

Action Rating: 2 out of 5

Tuesday, June 23, 2026

Weather Forecast

Sunny
75.6°F
50.8°F
63.7°F
69%
0 in
6%
0%
6.7 mph
8.7


Air Quality

AQI: 1 - Good
PM2.5: 2.85 μg/m3
PM10: 2.93 μg/m3
Carbon Monoxide: 129.98 μg/m3
Nitrogen Dioxide: 10.93 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 43.5 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 1:00 PM
Sunset: 8:37 PM
Daylight: 15 hrs 16 mins
Moonrise: 3:04 PM
Moon Transit: 8:23 PM
Moonset: 1:12 AM
Moon Phase: First Quarter
Moon Illumination: 61.0%

Best Times for Fishing or Hunting

Major Periods

7:37 AM - 10:07 AM
7:53 PM - 10:23 PM

Minor Periods

2:34 PM - 4:04 PM
12:42 AM - 2:12 AM

Action Rating: 2 out of 5

Wednesday, June 24, 2026

Weather Forecast

Patchy rain nearby
74.6°F
56.2°F
65.2°F
80%
0.06 in
57%
0%
11.9 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 9.46 μg/m3
PM10: 9.75 μg/m3
Carbon Monoxide: 283.13 μg/m3
Nitrogen Dioxide: 39.49 μg/m3
Sulphur Dioxide: 0.76 μg/m3
Ozone: 6.13 μg/m3

Astronomical

Sunrise: 5:22 AM
Sun Transit: 1:00 PM
Sunset: 8:37 PM
Daylight: 15 hrs 16 mins
Moonrise: 4:09 PM
Moon Transit: 9:07 PM
Moonset: 1:33 AM
Moon Phase: First Quarter
Moon Illumination: 71.7%

Best Times for Fishing or Hunting

Major Periods

8:21 AM - 10:51 AM
8:37 PM - 11:07 PM

Minor Periods

3:39 PM - 5:09 PM
1:03 AM - 2:33 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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