Water Temperature of the Rock River in Byron, IL

Current Water Temperature

69.8°F

Measurement Time: Friday, August 29, 2025, 11:15 PM CDT

Temperature Locations

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Local Points of Interest

River Park East; Hamas Park; Sunshine Park; Byron Forest Preserve District

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Rock River

Station Name: ROCK RIVER AT BYRON, IL
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 679 feet / 207 meters

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 (59.0 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

55.9°F
Partly cloudy
Conditions: Partly cloudy
Humidity: 93%
Feels Like: 54.8°F
Wind: SE 5.8 mph
Wind Gusts: 12.2 mph
Pressure: 30.17 in
Precipitation: 0 in
Cloud Cover: 75%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Partly Cloudy
Sat
H: 73°F
L: 59°F
Moderate rain
Sun
H: 75°F
L: 56°F
Partly Cloudy
Mon
H: 76°F
L: 49°F
Sunny
Tue
H: 77°F
L: 53°F
Patchy rain nearby
Wed
H: 67°F
L: 43°F

Air Quality

AQI: 2 - Moderate
PM2.5: 8.51 μg/m3
PM10: 8.88 μg/m3
Carbon Monoxide: 381.1 μg/m3
Nitrogen Dioxide: 11.84 μg/m3
Sulphur Dioxide: 9.62 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 12:57 AM
Sunset: 7:33 PM
Daylight: 13 hrs 12 mins
Moonrise: 2:01 PM
Moon Transit: 6:25 PM
Moonset: 10:47 PM
Moon Phase: First Quarter
Moon Illumination: 41.9%

Best Times for Fishing or Hunting

Major Periods

5:37 AM - 8:07 AM
5:55 PM - 8:25 PM

Minor Periods

10:17 PM - 11:47 PM
1:31 PM - 3:01 PM

Action Rating: 2 out of 5

Saturday, August 30, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 64°F
Average Humidity: 80%
Chance of Rain: 0%
Wind: 7.6 mph
UV Index: 1.6

Air Quality

AQI: 1 - Good
PM2.5: 9.95 μg/m3
PM10: 10.33 μg/m3
Carbon Monoxide: 375.99 μg/m3
Nitrogen Dioxide: 21.08 μg/m3
Sulphur Dioxide: 7.83 μg/m3
Ozone: 69.2 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 12:57 AM
Sunset: 7:33 PM
Daylight: 13 hrs 12 mins
Moonrise: 2:01 PM
Moon Transit: 6:25 PM
Moonset: 10:47 PM
Moon Phase: First Quarter
Moon Illumination: 41.9%

Best Times for Fishing or Hunting

Major Periods

5:37 AM - 8:07 AM
5:55 PM - 8:25 PM

Minor Periods

10:17 PM - 11:47 PM
1:31 PM - 3:01 PM

Action Rating: 2 out of 5

Sunday, August 31, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 65°F
Average Humidity: 83%
Chance of Rain: 86%
Wind: 8.1 mph
UV Index: 1.7

Air Quality

AQI: 1 - Good
PM2.5: 12.79 μg/m3
PM10: 13.06 μg/m3
Carbon Monoxide: 335.15 μg/m3
Nitrogen Dioxide: 21.1 μg/m3
Sulphur Dioxide: 8.33 μg/m3
Ozone: 79.4 μg/m3

Astronomical

Sunrise: 6:22 AM
Sun Transit: 12:57 AM
Sunset: 7:32 PM
Daylight: 13 hrs 10 mins
Moonrise: 3:03 PM
Moon Transit: 7:16 PM
Moonset: 11:28 PM
Moon Phase: First Quarter
Moon Illumination: 53.2%

Best Times for Fishing or Hunting

Major Periods

6:27 AM - 8:57 AM
6:46 PM - 9:16 PM

Minor Periods

12:00 AM - 12:00 AM
2:33 PM - 4:03 PM

Action Rating: 3 out of 5

Monday, September 1, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 62.9°F
Average Humidity: 79%
Chance of Rain: 0%
Wind: 6.7 mph
UV Index: 1.6

Air Quality

AQI: 1 - Good
PM2.5: 11.78 μg/m3
PM10: 11.9 μg/m3
Carbon Monoxide: 391.76 μg/m3
Nitrogen Dioxide: 21.02 μg/m3
Sulphur Dioxide: 7.9 μg/m3
Ozone: 86.64 μg/m3

Astronomical

Sunrise: 6:23 AM
Sun Transit: 12:56 AM
Sunset: 7:30 PM
Daylight: 13 hrs 7 mins
Moonrise: 4:00 PM
Moon Transit: 8:09 PM
Moonset: 12:28 AM
Moon Phase: First Quarter
Moon Illumination: 64.3%

Best Times for Fishing or Hunting

Major Periods

7:19 AM - 9:49 AM
7:39 PM - 10:09 PM

Minor Periods

3:30 PM - 5:00 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Tuesday, September 2, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 63.7°F
Average Humidity: 70%
Chance of Rain: 0%
Wind: 6.9 mph
UV Index: 1.6

Air Quality

AQI: 1 - Good
PM2.5: 14.02 μg/m3
PM10: 14.2 μg/m3
Carbon Monoxide: 374.44 μg/m3
Nitrogen Dioxide: 24.22 μg/m3
Sulphur Dioxide: 8.04 μg/m3
Ozone: 85.24 μg/m3

Astronomical

Sunrise: 6:24 AM
Sun Transit: 12:56 AM
Sunset: 7:28 PM
Daylight: 13 hrs 4 mins
Moonrise: 4:50 PM
Moon Transit: 9:04 PM
Moonset: 12:20 AM
Moon Phase: First Quarter
Moon Illumination: 74.7%

Best Times for Fishing or Hunting

Major Periods

8:13 AM - 10:43 AM
8:34 PM - 11:04 PM

Minor Periods

4:20 PM - 5:50 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, September 3, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 58.5°F
Average Humidity: 82%
Chance of Rain: 84%
Wind: 16.1 mph
UV Index: 0

Air Quality

AQI: 2 - Moderate
PM2.5: 24.49 μg/m3
PM10: 24.76 μg/m3
Carbon Monoxide: 577.34 μg/m3
Nitrogen Dioxide: 72.8 μg/m3
Sulphur Dioxide: 5.24 μg/m3
Ozone: 37.77 μg/m3

Astronomical

Sunrise: 6:25 AM
Sun Transit: 12:56 AM
Sunset: 7:27 PM
Daylight: 13 hrs 1 mins
Moonrise: 5:32 PM
Moon Transit: 9:57 PM
Moonset: 1:21 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 83.9%

Best Times for Fishing or Hunting

Major Periods

9:07 AM - 11:37 AM
9:27 PM - 11:57 PM

Minor Periods

5:02 PM - 6:32 PM
12:51 AM - 2:21 AM

Action Rating: 2 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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