Water Temperature of the Rock River in Byron, IL

Current Water Temperature

74.3°F

Measurement Time: Thursday, June 4, 2026, 7:15 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

70°F
Partly cloudy
Partly cloudy
70°F
69.3°F
59%
SSW 11.9 mph
20.4 mph
68.9°F
52.4°F
0 in
50%
9 mi
1014 mbar
0

Five Day Weather Forecast

Heavy rain
Fri
H: 78°F
L: 67°F
Moderate rain
Sat
H: 81°F
L: 64°F
Patchy rain nearby
Sun
H: 83°F
L: 66°F
Moderate rain
Mon
H: 81°F
L: 64°F
Patchy rain nearby
Tue
H: 80°F
L: 69°F

Air Quality

AQI: 1 - Good
PM2.5: 8.2 μg/m3
PM10: 9.1 μg/m3
Carbon Monoxide: 150 μg/m3
Nitrogen Dioxide: 7.3 μg/m3
Sulphur Dioxide: 2 μg/m3
Ozone: 89 μg/m3

Astronomical

Sunrise: 5:22 AM
Sun Transit: 12:55 AM
Sunset: 8:30 PM
Daylight: 15 hrs 8 mins
Moonrise: 12:05 AM
Moon Transit: 4:54 AM
Moonset: 9:51 AM
Moon Phase: Waning Gibbous
Moon Illumination: 65.0%

Best Times for Fishing or Hunting

Major Periods

4:24 AM - 6:54 AM
4:52 PM - 7:22 PM

Minor Periods

9:21 AM - 10:51 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Air Quality Alert issued June 4 at 11:39AM CDT by NWS Milwaukee/Sullivan WI

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Thu June 4, 2026, 11:39 AM
Expires: Thu June 4, 2026, 11:00 PM

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for the following counties: Dodge, Fond du Lac, Jefferson, Kenosha, Milwaukee, Ozaukee, Racine, Rock, Sheboygan, Walworth, Washington, and Waukesha. WHAT...The Ozone AQI is expected to reach the Unhealthy for Sensitive Groups (Orange) level. WHERE...Southeast and east-central Wisconsin. WHEN...From noon until 11 p.m. today. Precautionary/Preparedness Actions: Sensitive groups: Do not do long or intense outdoor activities. Schedule outdoor activities in the morning when ozone is lower. Consider moving activities indoors. People with asthma: Follow your asthma action plan and keep quick- relief medicine handy. Everyone else: Reduce long or intense outdoor activity. Take more breaks, do less intense activities. Schedule outdoor activities in the morning when ozone is lower. Additional Details: Unhealthy (Red) AQI ozone will be possible within the lake breeze from Sheboygan south to Kenosha. These ozone concentrations will be confined to the lake breeze, which should struggle to push inland given the breezy SSW flow. Inland of the lake breeze and further north along Lake Michigan and Green Bay, Unhealthy for Sensitive Groups (Orange) AQI ozone is expected. For more information on current air quality, please see: https://airquality.wi.gov


Friday, June 5, 2026

Weather Forecast

Heavy rain
77.9°F
67°F
71.2°F
82%
1.88 in
87%
0%
23.5 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 5.43 μg/m3
PM10: 5.84 μg/m3
Carbon Monoxide: 138.38 μg/m3
Nitrogen Dioxide: 5.2 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 79.42 μg/m3

Astronomical

Sunrise: 5:22 AM
Sun Transit: 12:55 AM
Sunset: 8:30 PM
Daylight: 15 hrs 8 mins
Moonrise: 12:05 AM
Moon Transit: 4:54 AM
Moonset: 9:51 AM
Moon Phase: Waning Gibbous
Moon Illumination: 65.0%

Best Times for Fishing or Hunting

Major Periods

4:24 AM - 6:54 AM
4:52 PM - 7:22 PM

Minor Periods

9:21 AM - 10:51 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, June 6, 2026

Weather Forecast

Moderate rain
80.5°F
64.3°F
72.7°F
81%
0.69 in
86%
0%
21.5 mph
6.2


Air Quality

AQI: 1 - Good
PM2.5: 4.84 μg/m3
PM10: 5.77 μg/m3
Carbon Monoxide: 135.17 μg/m3
Nitrogen Dioxide: 6.37 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 78.04 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 12:55 AM
Sunset: 8:31 PM
Daylight: 15 hrs 9 mins
Moonrise: 12:30 AM
Moon Transit: 5:39 AM
Moonset: 10:57 AM
Moon Phase: Last Quarter
Moon Illumination: 53.9%

Best Times for Fishing or Hunting

Major Periods

5:09 AM - 7:39 AM
5:37 PM - 8:07 PM

Minor Periods

10:27 AM - 11:57 AM
12:00 AM - 1:30 AM

Action Rating: 4 out of 5

Sunday, June 7, 2026

Weather Forecast

Patchy rain nearby
83.4°F
66.4°F
73.5°F
78%
0.09 in
73%
0%
11.6 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 6.85 μg/m3
PM10: 7.62 μg/m3
Carbon Monoxide: 166.17 μg/m3
Nitrogen Dioxide: 9.23 μg/m3
Sulphur Dioxide: 1.46 μg/m3
Ozone: 73.21 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 12:55 AM
Sunset: 8:31 PM
Daylight: 15 hrs 10 mins
Moonrise: 12:53 AM
Moon Transit: 6:22 AM
Moonset: 12:03 AM
Moon Phase: Last Quarter
Moon Illumination: 42.6%

Best Times for Fishing or Hunting

Major Periods

5:52 AM - 8:22 AM
6:20 PM - 8:50 PM

Minor Periods

11:33 AM - 1:03 PM
12:23 AM - 1:53 AM

Action Rating: 3 out of 5

Monday, June 8, 2026

Weather Forecast

Moderate rain
80.7°F
63.7°F
71.4°F
86%
0.59 in
91%
0%
13.4 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 2.85 μg/m3
PM10: 3.06 μg/m3
Carbon Monoxide: 140.65 μg/m3
Nitrogen Dioxide: 5.46 μg/m3
Sulphur Dioxide: 0.84 μg/m3
Ozone: 55.88 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 12:56 AM
Sunset: 8:32 PM
Daylight: 15 hrs 11 mins
Moonrise: 1:13 AM
Moon Transit: 12:00 AM
Moonset: 1:10 PM
Moon Phase: Last Quarter
Moon Illumination: 31.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

12:40 AM - 2:10 PM
12:43 AM - 2:13 AM

Action Rating: 2 out of 5

Tuesday, June 9, 2026

Weather Forecast

Patchy rain nearby
80°F
68.9°F
72.3°F
92%
0.11 in
93%
0%
12.8 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 1.38 μg/m3
PM10: 1.41 μg/m3
Carbon Monoxide: 159.13 μg/m3
Nitrogen Dioxide: 6.99 μg/m3
Sulphur Dioxide: 0.54 μg/m3
Ozone: 45 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 12:56 AM
Sunset: 8:32 PM
Daylight: 15 hrs 12 mins
Moonrise: 1:34 AM
Moon Transit: 5:27 AM
Moonset: 2:19 PM
Moon Phase: Last Quarter
Moon Illumination: 21.6%

Best Times for Fishing or Hunting

Major Periods

4:57 AM - 7:27 AM
4:57 AM - 7:27 AM

Minor Periods

1:49 PM - 3:19 PM
1:04 AM - 2:34 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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