Water Temperature of the Rock River in Byron, IL

Current Water Temperature

36.5°F

Measurement Time: Wednesday, January 14, 2026, 2:15 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

21.9°F
Partly cloudy
Partly cloudy
6.5°F
26.4°F
57%
NNW 20.6 mph
25.1 mph
11.7°F
15.1°F
0 in
75%
8 mi
1011 mbar
0.4

Five Day Weather Forecast

Light freezing rain
Wed
H: 35°F
L: 18°F
Partly Cloudy
Thu
H: 22°F
L: 12°F
Moderate or heavy snow showers
Fri
H: 35°F
L: 21°F
Moderate snow
Sat
H: 17°F
L: 5°F
Overcast
Sun
H: 12°F
L: 2°F

Air Quality

AQI: 1 - Good
PM2.5: 1.45 μg/m3
PM10: 1.45 μg/m3
Carbon Monoxide: 147.85 μg/m3
Nitrogen Dioxide: 2.15 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 80 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:06 AM
Sunset: 4:50 PM
Daylight: 9 hrs 27 mins
Moonrise: 4:18 AM
Moon Transit: 8:39 AM
Moonset: 12:58 AM
Moon Phase: Waning Crescent
Moon Illumination: 8.5%

Best Times for Fishing or Hunting

Major Periods

8:09 AM - 10:39 AM
8:41 PM - 11:11 PM

Minor Periods

12:28 AM - 1:58 PM
3:48 AM - 5:18 AM

Action Rating: 2 out of 5

Special Weather Statement issued January 14 at 4:50AM CST by NWS Chicago IL

Effective: Wed January 14, 2026, 4:50 AM
Expires: Wed January 14, 2026, 10:00 AM

A band of gusty snow showers along a strong cold front extended back to southwest Wisconsin as 4:50 AM CST. These snow showers can be expected to move steadily south across the area between 6 AM and 11 AM CST. Embedded bursts of heavier snow may tend to focus east of I-39, which when paired with northerly winds gusting to 35 to 40 mph, may reduce visibility below one mile at times. A coating to around a half inch of snow may accumulate on colder or untreated surfaces, with localized one inch amounts possible in far northwest Indiana. With temperatures starting above freezing and then quickly falling into the 20s with the snow, slick spots may develop on some roads. Motorists are advised to leave extra time to reach their destinations this morning and be prepared to encounter localized hazardous travel. Take it slow and keep a safe following distance when driving.


Special Weather Statement issued January 14 at 5:58AM CST by NWS Quad Cities IA IL

Effective: Wed January 14, 2026, 5:58 AM
Expires: Wed January 14, 2026, 12:15 PM

Gusty winds behind a cold front are expected this morning. Sustained winds of 15 to 25 mph and gusts of 35 to 40 mph are expected. An errant gust to 45 mph is also possible. Drivers of vans, campers, trailers, and other high profile vehicles should be extra cautious, especially on east-west roads. Be sure to secure outdoor items as well. Winds this afternoon will be lower. Snow showers are also possible north and east of a line from Manchester, Iowa to Cambridge, Illinois. Brief reduced visibilties of 1 to 2 miles and isolated slick spots are possible in the most intense showers this morning. No snow accumulation is expected at this time.


Special Weather Statement issued January 14 at 6:14AM CST by NWS Milwaukee/Sullivan WI

Effective: Wed January 14, 2026, 6:14 AM
Expires: Wed January 14, 2026, 9:00 AM

The combination of snow and high wind gusts to 35 miles per hour have severely limited visiblity this morning down to 1/2 mile in spots, leading to hazardous driving conditions for the morning commute. If you need to travel this morning, please leave extra time and slow down and leave room for extra stopping distance.


Wednesday, January 14, 2026

Weather Forecast

Light freezing rain
34.7°F
17.6°F
27.7°F
63%
0.01 in
84%
12%
21.7 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.21 μg/m3
PM10: 2.32 μg/m3
Carbon Monoxide: 161.65 μg/m3
Nitrogen Dioxide: 2.96 μg/m3
Sulphur Dioxide: 1.66 μg/m3
Ozone: 73.44 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:06 AM
Sunset: 4:50 PM
Daylight: 9 hrs 27 mins
Moonrise: 4:18 AM
Moon Transit: 8:39 AM
Moonset: 12:58 AM
Moon Phase: Waning Crescent
Moon Illumination: 8.5%

Best Times for Fishing or Hunting

Major Periods

8:09 AM - 10:39 AM
8:41 PM - 11:11 PM

Minor Periods

12:28 AM - 1:58 PM
3:48 AM - 5:18 AM

Action Rating: 2 out of 5

Thursday, January 15, 2026

Weather Forecast

Partly Cloudy
21.6°F
11.8°F
17.1°F
65%
0 in
0%
0%
17 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 2.28 μg/m3
PM10: 2.58 μg/m3
Carbon Monoxide: 155.25 μg/m3
Nitrogen Dioxide: 3.31 μg/m3
Sulphur Dioxide: 1.8 μg/m3
Ozone: 69.68 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:06 AM
Sunset: 4:51 PM
Daylight: 9 hrs 28 mins
Moonrise: 5:17 AM
Moon Transit: 9:30 AM
Moonset: 1:42 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:00 AM - 11:30 AM

Minor Periods

1:12 PM - 2:42 PM
4:47 AM - 6:17 AM

Action Rating: 2 out of 5

Friday, January 16, 2026

Weather Forecast

Moderate or heavy snow showers
35.1°F
21.4°F
28.7°F
85%
0.13 in
69%
19%
17.2 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 3.37 μg/m3
PM10: 3.86 μg/m3
Carbon Monoxide: 156.81 μg/m3
Nitrogen Dioxide: 4.54 μg/m3
Sulphur Dioxide: 2.1 μg/m3
Ozone: 62.56 μg/m3

Astronomical

Sunrise: 7:22 AM
Sun Transit: 12:06 AM
Sunset: 4:52 PM
Daylight: 9 hrs 30 mins
Moonrise: 6:12 AM
Moon Transit: 10:23 AM
Moonset: 2:36 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

2:06 PM - 3:36 PM
5:42 AM - 7:12 AM

Action Rating: 3 out of 5

Saturday, January 17, 2026

Weather Forecast

Moderate snow
17.4°F
4.5°F
13.3°F
86%
0.08 in
63%
56%
17.9 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.05 μg/m3
PM10: 2.1 μg/m3
Carbon Monoxide: 161.89 μg/m3
Nitrogen Dioxide: 2.85 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 63.76 μg/m3

Astronomical

Sunrise: 7:22 AM
Sun Transit: 12:07 AM
Sunset: 4:53 PM
Daylight: 9 hrs 31 mins
Moonrise: 6:58 AM
Moon Transit: 11:15 AM
Moonset: 3:37 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:45 AM - 1:15 PM

Minor Periods

3:07 PM - 4:37 PM
6:28 AM - 7:58 AM

Action Rating: 4 out of 5

Sunday, January 18, 2026

Weather Forecast

Overcast
11.5°F
1.7°F
5.3°F
81%
0 in
0%
0%
15.2 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 3.11 μg/m3
PM10: 3.26 μg/m3
Carbon Monoxide: 179.58 μg/m3
Nitrogen Dioxide: 4.92 μg/m3
Sulphur Dioxide: 1.47 μg/m3
Ozone: 59 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 12:07 AM
Sunset: 4:54 PM
Daylight: 9 hrs 33 mins
Moonrise: 7:36 AM
Moon Transit: 12:07 AM
Moonset: 4:44 PM
Moon Phase: New
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:37 AM - 2:07 PM

Minor Periods

4:14 PM - 5:44 PM
7:06 AM - 8:36 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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