Water Temperature of the Rock River in Byron, IL

Current Water Temperature

32.7°F

Measurement Time: Saturday, February 14, 2026, 7:15 AM CST

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

48.9°F
Partly cloudy
Partly cloudy
46.8°F
54°F
48%
S 5.1 mph
6.1 mph
53.9°F
33.4°F
0 in
75%
9 mi
1016 mbar
1.6

Five Day Weather Forecast

Sunny
Sat
H: 62°F
L: 28°F
Overcast
Sun
H: 40°F
L: 27°F
Overcast
Mon
H: 43°F
L: 32°F
Partly Cloudy
Tue
H: 56°F
L: 33°F
Patchy rain nearby
Wed
H: 63°F
L: 45°F

Air Quality

AQI: 1 - Good
PM2.5: 16.15 μg/m3
PM10: 16.35 μg/m3
Carbon Monoxide: 344.85 μg/m3
Nitrogen Dioxide: 26.65 μg/m3
Sulphur Dioxide: 3.15 μg/m3
Ozone: 11 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 12:11 AM
Sunset: 5:28 PM
Daylight: 10 hrs 34 mins
Moonrise: 5:34 AM
Moon Transit: 9:58 AM
Moonset: 2:28 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:28 AM - 11:58 AM

Minor Periods

1:58 PM - 3:28 PM
5:04 AM - 6:34 AM

Action Rating: 3 out of 5

Saturday, February 14, 2026

Weather Forecast

Sunny
62.1°F
27.9°F
39.7°F
70%
0 in
0%
0%
6.9 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 13.16 μg/m3
PM10: 13.28 μg/m3
Carbon Monoxide: 285.05 μg/m3
Nitrogen Dioxide: 18.35 μg/m3
Sulphur Dioxide: 3.76 μg/m3
Ozone: 27.8 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 12:11 AM
Sunset: 5:28 PM
Daylight: 10 hrs 34 mins
Moonrise: 5:34 AM
Moon Transit: 9:58 AM
Moonset: 2:28 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:28 AM - 11:58 AM

Minor Periods

1:58 PM - 3:28 PM
5:04 AM - 6:34 AM

Action Rating: 3 out of 5

Sunday, February 15, 2026

Weather Forecast

Overcast
39.7°F
27°F
33.5°F
94%
0 in
0%
0%
7.8 mph
0.5


Air Quality

AQI: 2 - Moderate
PM2.5: 16.13 μg/m3
PM10: 16.46 μg/m3
Carbon Monoxide: 307.61 μg/m3
Nitrogen Dioxide: 19 μg/m3
Sulphur Dioxide: 3.3 μg/m3
Ozone: 26.76 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 12:11 AM
Sunset: 5:30 PM
Daylight: 10 hrs 37 mins
Moonrise: 6:08 AM
Moon Transit: 10:48 AM
Moonset: 3:37 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:18 AM - 12:48 AM

Minor Periods

3:07 PM - 4:37 PM
5:38 AM - 7:08 AM

Action Rating: 3 out of 5

Monday, February 16, 2026

Weather Forecast

Overcast
42.6°F
32.4°F
37.4°F
98%
0 in
0%
0%
15.9 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 10.94 μg/m3
PM10: 11.24 μg/m3
Carbon Monoxide: 231.61 μg/m3
Nitrogen Dioxide: 12.79 μg/m3
Sulphur Dioxide: 2.49 μg/m3
Ozone: 51.44 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 12:11 AM
Sunset: 5:31 PM
Daylight: 10 hrs 39 mins
Moonrise: 6:37 AM
Moon Transit: 11:37 AM
Moonset: 4:47 PM
Moon Phase: New
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:07 AM - 1:37 PM

Minor Periods

4:17 PM - 5:47 PM
6:07 AM - 7:37 AM

Action Rating: 4 out of 5

Tuesday, February 17, 2026

Weather Forecast

Partly Cloudy
56.4°F
32.5°F
47.2°F
77%
0 in
0%
0%
16.3 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 13.03 μg/m3
PM10: 13.26 μg/m3
Carbon Monoxide: 201.54 μg/m3
Nitrogen Dioxide: 17.75 μg/m3
Sulphur Dioxide: 6.37 μg/m3
Ozone: 42.48 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 12:11 AM
Sunset: 5:32 PM
Daylight: 10 hrs 42 mins
Moonrise: 7:01 AM
Moon Transit: 12:24 AM
Moonset: 5:58 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:54 AM - 2:24 PM

Minor Periods

5:28 PM - 6:58 PM
6:31 AM - 8:01 AM

Action Rating: 5 out of 5

Wednesday, February 18, 2026

Weather Forecast

Patchy rain nearby
63.2°F
44.5°F
54.8°F
60%
0.13 in
77%
0%
26.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 15.03 μg/m3
PM10: 15.1 μg/m3
Carbon Monoxide: 261.44 μg/m3
Nitrogen Dioxide: 22.84 μg/m3
Sulphur Dioxide: 7.72 μg/m3
Ozone: 36.31 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 12:10 AM
Sunset: 5:33 PM
Daylight: 10 hrs 45 mins
Moonrise: 7:23 AM
Moon Transit: 1:09 PM
Moonset: 7:08 PM
Moon Phase: New
Moon Illumination: 1.3%

Best Times for Fishing or Hunting

Major Periods

12:23 AM - 2:53 AM
12:39 AM - 3:09 PM

Minor Periods

6:38 PM - 8:08 PM
6:53 AM - 8:23 AM

Action Rating: 4 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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