Water Temperature of the Rock River in Byron, IL

Current Water Temperature

46.2°F

Measurement Time: Sunday, November 16, 2025, 12:15 PM CST

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

37°F
Clear
Conditions: Clear
Humidity: 48%
Feels Like: 31.2°F
Wind: WNW 7.6 mph
Wind Gusts: 16 mph
Pressure: 30 in
Precipitation: 0 in
Cloud Cover: 25%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Sun
H: 55°F
L: 32°F
Overcast
Mon
H: 37°F
L: 24°F
Heavy rain
Tue
H: 39°F
L: 33°F
Overcast
Wed
H: 37°F
L: 32°F
Patchy rain nearby
Thu
H: 57°F
L: 38°F

Air Quality

AQI: 2 - Moderate
PM2.5: 3.45 μg/m3
PM10: 3.75 μg/m3
Carbon Monoxide: 165.85 μg/m3
Nitrogen Dioxide: 8.45 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 43 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 11:41 AM
Sunset: 4:35 PM
Daylight: 9 hrs 46 mins
Moonrise: 3:19 AM
Moon Transit: 9:03 AM
Moonset: 2:38 PM
Moon Phase: Waning Crescent
Moon Illumination: 8.1%

Best Times for Fishing or Hunting

Major Periods

8:33 AM - 11:03 AM
9:00 PM - 11:30 PM

Minor Periods

2:08 PM - 3:38 PM
2:49 AM - 4:19 AM

Action Rating: 2 out of 5

Special Weather Statement issued November 16 at 2:44AM CST by NWS Chicago IL

Effective: Sun November 16, 2025, 2:44 AM
Expires: Sun November 16, 2025, 4:00 PM

An elevated risk for fire spread exists this afternoon around northern Illinois and northwestern Indiana. The combination of dry air, gusty northwest winds, and recent dry conditions may make fires difficult to manage and could cause them to spread rapidly. Use extra caution while burning and disposing of burning materials today, including leaves and other vegetation.


Sunday, November 16, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 43.1°F
Average Humidity: 32%
Chance of Rain: 0%
Wind: 17.2 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 2.55 μg/m3
PM10: 2.72 μg/m3
Carbon Monoxide: 157.97 μg/m3
Nitrogen Dioxide: 4.67 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 63.64 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 11:41 AM
Sunset: 4:35 PM
Daylight: 9 hrs 46 mins
Moonrise: 3:19 AM
Moon Transit: 9:03 AM
Moonset: 2:38 PM
Moon Phase: Waning Crescent
Moon Illumination: 8.1%

Best Times for Fishing or Hunting

Major Periods

8:33 AM - 11:03 AM
9:00 PM - 11:30 PM

Minor Periods

2:08 PM - 3:38 PM
2:49 AM - 4:19 AM

Action Rating: 2 out of 5

Monday, November 17, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 32.5°F
Average Humidity: 54%
Chance of Rain: 0%
Wind: 8.7 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 4.04 μg/m3
PM10: 4.26 μg/m3
Carbon Monoxide: 172.77 μg/m3
Nitrogen Dioxide: 9.32 μg/m3
Sulphur Dioxide: 2.14 μg/m3
Ozone: 49.64 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 11:42 AM
Sunset: 4:34 PM
Daylight: 9 hrs 44 mins
Moonrise: 4:22 AM
Moon Transit: 9:44 AM
Moonset: 2:58 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:14 AM - 11:44 AM

Minor Periods

2:28 PM - 3:58 PM
3:52 AM - 5:22 AM

Action Rating: 2 out of 5

Tuesday, November 18, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 36.4°F
Average Humidity: 93%
Chance of Rain: 86%
Wind: 15.7 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 10.74 μg/m3
PM10: 11.17 μg/m3
Carbon Monoxide: 188.81 μg/m3
Nitrogen Dioxide: 20.19 μg/m3
Sulphur Dioxide: 6.79 μg/m3
Ozone: 47.08 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 11:42 AM
Sunset: 4:33 PM
Daylight: 9 hrs 42 mins
Moonrise: 5:25 AM
Moon Transit: 10:27 AM
Moonset: 3:21 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:57 AM - 12:27 AM

Minor Periods

2:51 PM - 4:21 PM
4:55 AM - 6:25 AM

Action Rating: 4 out of 5

Wednesday, November 19, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 36.1°F
Average Humidity: 92%
Chance of Rain: 0%
Wind: 8.5 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 12.92 μg/m3
PM10: 13.39 μg/m3
Carbon Monoxide: 187.05 μg/m3
Nitrogen Dioxide: 15.78 μg/m3
Sulphur Dioxide: 5.73 μg/m3
Ozone: 40.4 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 11:42 AM
Sunset: 4:32 PM
Daylight: 9 hrs 40 mins
Moonrise: 6:29 AM
Moon Transit: 11:12 AM
Moonset: 3:49 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:42 AM - 1:12 PM

Minor Periods

3:19 PM - 4:49 PM
5:59 AM - 7:29 AM

Action Rating: 4 out of 5

Thursday, November 20, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 46.8°F
Average Humidity: 81%
Chance of Rain: 70%
Wind: 12.3 mph
UV Index: 0.4

Air Quality

AQI: 2 - Moderate
PM2.5: 28.16 μg/m3
PM10: 28.57 μg/m3
Carbon Monoxide: 390.31 μg/m3
Nitrogen Dioxide: 40.6 μg/m3
Sulphur Dioxide: 8.75 μg/m3
Ozone: 2.15 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 11:42 AM
Sunset: 4:32 PM
Daylight: 9 hrs 38 mins
Moonrise: 7:33 AM
Moon Transit: 12:00 AM
Moonset: 4:22 PM
Moon Phase: New
Moon Illumination: 2.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:30 AM - 2:00 PM

Minor Periods

3:52 PM - 5:22 PM
7:03 AM - 8:33 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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