Water Temperature of the Rock River in Byron, IL

Current Water Temperature

33.6°F

Measurement Time: Tuesday, February 17, 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

56.1°F
Sunny
Sunny
52.9°F
61.2°F
49%
SSE 12.8 mph
14.7 mph
60.7°F
44.4°F
0 in
0%
9 mi
1009 mbar
1.4

Five Day Weather Forecast

Sunny
Tue
H: 69°F
L: 33°F
Cloudy
Wed
H: 63°F
L: 41°F
Moderate rain
Thu
H: 48°F
L: 35°F
Moderate rain
Fri
H: 39°F
L: 27°F
Cloudy
Sat
H: 35°F
L: 23°F

Air Quality

AQI: 1 - Good
PM2.5: 10.05 μg/m3
PM10: 10.15 μg/m3
Carbon Monoxide: 236.85 μg/m3
Nitrogen Dioxide: 9.65 μg/m3
Sulphur Dioxide: 4.35 μg/m3
Ozone: 56 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

Special Weather Statement issued February 17 at 5:42AM CST by NWS Quad Cities IA IL

Effective: Tue February 17, 2026, 5:42 AM
Expires: Tue February 17, 2026, 7:00 PM

Warm temperatures combined with dead fuels and southeast winds gusting 25 to 35 mph will produce elevated fire danger conditions. Any fire that develops will spread quickly. Avoid outdoor burning today and follow local official guidance on potential burn bans.


Tuesday, February 17, 2026

Weather Forecast

Sunny
68.5°F
32.9°F
49.8°F
67%
0 in
0%
0%
19.5 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 10.83 μg/m3
PM10: 10.93 μg/m3
Carbon Monoxide: 237.17 μg/m3
Nitrogen Dioxide: 9.69 μg/m3
Sulphur Dioxide: 3.98 μg/m3
Ozone: 50.68 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

Cloudy
62.8°F
41.2°F
51.9°F
68%
0 in
0%
0%
22.1 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 7.32 μg/m3
PM10: 7.49 μg/m3
Carbon Monoxide: 186.65 μg/m3
Nitrogen Dioxide: 4.65 μg/m3
Sulphur Dioxide: 2.57 μg/m3
Ozone: 74.2 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

Thursday, February 19, 2026

Weather Forecast

Moderate rain
48.4°F
34.5°F
42.7°F
81%
0.22 in
85%
0%
15.9 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 5.3 μg/m3
PM10: 5.74 μg/m3
Carbon Monoxide: 191.89 μg/m3
Nitrogen Dioxide: 10.55 μg/m3
Sulphur Dioxide: 4.33 μg/m3
Ozone: 59.64 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 12:10 AM
Sunset: 5:35 PM
Daylight: 10 hrs 47 mins
Moonrise: 7:44 AM
Moon Transit: 3:07 PM
Moonset: 8:20 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

1:08 AM - 3:38 AM
2:37 PM - 5:07 PM

Minor Periods

7:50 PM - 9:20 PM
7:14 AM - 8:44 AM

Action Rating: 4 out of 5

Friday, February 20, 2026

Weather Forecast

Moderate rain
38.9°F
26.5°F
35.6°F
82%
0.76 in
84%
0%
26.4 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 6.39 μg/m3
PM10: 6.67 μg/m3
Carbon Monoxide: 192.46 μg/m3
Nitrogen Dioxide: 11.29 μg/m3
Sulphur Dioxide: 4.23 μg/m3
Ozone: 54.04 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 12:10 AM
Sunset: 5:36 PM
Daylight: 10 hrs 50 mins
Moonrise: 8:06 AM
Moon Transit: 2:42 PM
Moonset: 9:32 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:12 PM - 4:42 PM

Minor Periods

9:02 PM - 10:32 PM
7:36 AM - 9:06 AM

Action Rating: 2 out of 5

Saturday, February 21, 2026

Weather Forecast

Cloudy
34.6°F
22.5°F
28.8°F
67%
0 in
0%
6%
15.9 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 8.45 μg/m3
PM10: 8.93 μg/m3
Carbon Monoxide: 231.77 μg/m3
Nitrogen Dioxide: 10.43 μg/m3
Sulphur Dioxide: 2.25 μg/m3
Ozone: 48.69 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 12:10 AM
Sunset: 5:37 PM
Daylight: 10 hrs 53 mins
Moonrise: 8:29 AM
Moon Transit: 3:31 PM
Moonset: 10:48 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.4%

Best Times for Fishing or Hunting

Major Periods

2:42 AM - 5:12 AM
3:01 PM - 5:31 PM

Minor Periods

10:18 PM - 11:48 PM
7:59 AM - 9:29 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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