Water Temperature of the Rock River in Byron, IL

Current Water Temperature

63.7°F

Measurement Time: Friday, May 9, 2025, 6:15 AM 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

64.9°F
Partly cloudy
Conditions: Partly cloudy
Humidity: 29%
Feels Like: 64.9°F
Wind: NNE 5.4 mph
Wind Gusts: 6.2 mph
Pressure: 30.26 in
Precipitation: 0 in
Cloud Cover: 50%
Visibility: 9 mi
UV Index: 7.5

Five Day Weather Forecast

Sunny
Fri
H: 72°F
L: 33°F
Sunny
Sat
H: 80°F
L: 48°F
Sunny
Sun
H: 78°F
L: 39°F
Partly Cloudy
Mon
H: 78°F
L: 51°F
Patchy rain nearby
Tue
H: 75°F
L: 58°F

Air Quality

AQI: 1 - Good
PM2.5: 5.55 μg/m3
PM10: 6.66 μg/m3
Carbon Monoxide: 294.15 μg/m3
Nitrogen Dioxide: 1.67 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 118 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 12:53 AM
Sunset: 8:05 PM
Daylight: 14 hrs 23 mins
Moonrise: 5:29 PM
Moon Transit: 11:02 PM
Moonset: 4:08 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.0%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

4:59 PM - 6:29 PM
3:38 AM - 5:08 AM

Action Rating: 2 out of 5

Frost Advisory issued May 9 at 4:04AM CDT until May 9 at 8:00AM CDT by NWS Milwaukee/Sullivan WI

Effective: Fri May 9, 2025, 4:04 AM
Expires: Fri May 9, 2025, 8:00 AM

* WHAT...Temperatures as low as the lower to middle 30s will result in frost formation. * WHERE...Portions of east central, south central, and southeast Wisconsin. * WHEN...Until 8 AM CDT this morning. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.


Frost Advisory issued May 9 at 4:04AM CDT until May 9 at 8:00AM CDT by NWS Milwaukee/Sullivan WI

Effective: Fri May 9, 2025, 4:04 AM
Expires: Fri May 9, 2025, 8:00 AM

* WHAT...Temperatures as low as the lower to middle 30s will result in frost formation. * WHERE...Portions of east central, south central, and southeast Wisconsin. * WHEN...Until 8 AM CDT this morning. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.


Frost Advisory issued May 9 at 4:04AM CDT until May 9 at 8:00AM CDT by NWS Milwaukee/Sullivan WI

Effective: Fri May 9, 2025, 4:04 AM
Expires: Fri May 9, 2025, 8:00 AM

* WHAT...Temperatures as low as the lower to middle 30s will result in frost formation. * WHERE...Portions of east central, south central, and southeast Wisconsin. * WHEN...Until 8 AM CDT this morning. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.
Friday, May 9, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 53.3°F
Average Humidity: 55%
Chance of Rain: 0%
Wind: 7.4 mph
UV Index: 2.1

Air Quality

AQI: 1 - Good
PM2.5: 6.7 μg/m3
PM10: 7.66 μg/m3
Carbon Monoxide: 314.35 μg/m3
Nitrogen Dioxide: 9.09 μg/m3
Sulphur Dioxide: 1.56 μg/m3
Ozone: 82.72 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 12:53 AM
Sunset: 8:05 PM
Daylight: 14 hrs 23 mins
Moonrise: 5:29 PM
Moon Transit: 11:02 PM
Moonset: 4:08 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.0%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

4:59 PM - 6:29 PM
3:38 AM - 5:08 AM

Action Rating: 2 out of 5

Saturday, May 10, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 62°F
Average Humidity: 58%
Chance of Rain: 0%
Wind: 13 mph
UV Index: 1.9

Air Quality

AQI: 2 - Moderate
PM2.5: 16.03 μg/m3
PM10: 17.58 μg/m3
Carbon Monoxide: 326.12 μg/m3
Nitrogen Dioxide: 31.83 μg/m3
Sulphur Dioxide: 2.11 μg/m3
Ozone: 78.4 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 12:53 AM
Sunset: 8:06 PM
Daylight: 14 hrs 25 mins
Moonrise: 6:31 PM
Moon Transit: 11:43 PM
Moonset: 4:27 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.1%

Best Times for Fishing or Hunting

Major Periods

10:59 AM - 1:29 PM
12:00 AM - 12:00 AM

Minor Periods

6:01 PM - 7:31 PM
3:57 AM - 5:27 AM

Action Rating: 3 out of 5

Sunday, May 11, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 57.9°F
Average Humidity: 64%
Chance of Rain: 0%
Wind: 9.2 mph
UV Index: 2.1

Air Quality

AQI: 1 - Good
PM2.5: 7.76 μg/m3
PM10: 8.66 μg/m3
Carbon Monoxide: 294.82 μg/m3
Nitrogen Dioxide: 9.29 μg/m3
Sulphur Dioxide: 3.86 μg/m3
Ozone: 88.44 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 12:53 AM
Sunset: 8:07 PM
Daylight: 14 hrs 28 mins
Moonrise: 7:35 PM
Moon Transit: 12:00 AM
Moonset: 4:48 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:41 AM - 2:11 PM

Minor Periods

7:05 PM - 8:35 PM
4:18 AM - 5:48 AM

Action Rating: 5 out of 5

Monday, May 12, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 64°F
Average Humidity: 73%
Chance of Rain: 0%
Wind: 11.2 mph
UV Index: 2.1

Air Quality

AQI: 1 - Good
PM2.5: 15.15 μg/m3
PM10: 16.19 μg/m3
Carbon Monoxide: 329.08 μg/m3
Nitrogen Dioxide: 11.5 μg/m3
Sulphur Dioxide: 7.89 μg/m3
Ozone: 98.24 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 12:53 AM
Sunset: 8:09 PM
Daylight: 14 hrs 30 mins
Moonrise: 8:40 PM
Moon Transit: 12:27 AM
Moonset: 5:12 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:26 AM - 2:56 PM

Minor Periods

8:10 PM - 9:40 PM
4:42 AM - 6:12 AM

Action Rating: 4 out of 5

Tuesday, May 13, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 66.1°F
Average Humidity: 81%
Chance of Rain: 88%
Wind: 10.3 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 7.77 μg/m3
PM10: 8.01 μg/m3
Carbon Monoxide: 315.21 μg/m3
Nitrogen Dioxide: 8.79 μg/m3
Sulphur Dioxide: 2.21 μg/m3
Ozone: 75.85 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 12:53 AM
Sunset: 8:10 PM
Daylight: 14 hrs 32 mins
Moonrise: 9:43 PM
Moon Transit: 1:13 AM
Moonset: 5:43 AM
Moon Phase: Full
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

12:43 AM - 3:13 AM
1:14 PM - 3:44 PM

Minor Periods

9:13 PM - 10:43 PM
5:13 AM - 6:43 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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