Water Temperature of the Rock River in Byron, IL

Current Water Temperature

32.0°F

Measurement Time: Saturday, September 12, 2026, 7:16 AM CDT

Temperature Locations

View Nearby Locations View All Illinois Locations View Locations Near Me

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

80°F

Conditions: Mostly Sunny

Humidity: 70%

Wind: W 10 mph

Dew Point: 69°F

Weather Forecast

This Afternoon
85°F - Mostly Sunny

Tonight
54°F - Mostly Clear

Sunday
72°F - Partly Sunny then Chance Rain Showers

Sunday Night
47°F - Slight Chance Rain Showers then Partly Cloudy

Monday
74°F - Chance Rain Showers

Monday Night
64°F - Chance Rain Showers then Chance Showers And Thunderstorms

Tuesday
82°F - Chance Showers And Thunderstorms then Showers And Thunderstorms Likely

Tuesday Night
58°F - Showers And Thunderstorms

Wednesday
76°F - Showers And Thunderstorms

Wednesday Night
59°F - Showers And Thunderstorms

Thursday
77°F - Showers And Thunderstorms Likely

Thursday Night
54°F - Slight Chance Showers And Thunderstorms

Friday
77°F - Slight Chance Showers And Thunderstorms

Friday Night
53°F - Chance Rain Showers

Astronomical

Sunrise: 6:34 AM
Sun Transit: 12:53 AM
Sunset: 7:11 PM
Daylight: 12 hrs 37 mins

Moonrise: 8:16 AM
Moon Transit: 2:03 PM
Moonset: 7:41 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

1:17 AM - 3:47 AM
1:33 PM - 4:03 PM

Minor Periods

7:11 PM - 8:41 PM
7:46 AM - 9:16 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 12:53 AM
Sunset: 7:11 PM
Daylight: 12 hrs 37 mins

Moonrise: 8:16 AM
Moon Transit: 2:03 PM
Moonset: 7:41 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

1:17 AM - 3:47 AM
1:33 PM - 4:03 PM

Minor Periods

7:11 PM - 8:41 PM
7:46 AM - 9:16 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 12:53 AM
Sunset: 7:11 PM
Daylight: 12 hrs 37 mins

Moonrise: 8:16 AM
Moon Transit: 2:03 PM
Moonset: 7:41 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

1:17 AM - 3:47 AM
1:33 PM - 4:03 PM

Minor Periods

7:11 PM - 8:41 PM
7:46 AM - 9:16 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 12:52 AM
Sunset: 7:10 PM
Daylight: 12 hrs 34 mins

Moonrise: 9:24 AM
Moon Transit: 2:48 PM
Moonset: 8:04 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

2:02 AM - 4:32 AM
2:18 PM - 4:48 PM

Minor Periods

7:34 PM - 9:04 PM
8:54 AM - 10:24 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 12:52 AM
Sunset: 7:10 PM
Daylight: 12 hrs 34 mins

Moonrise: 9:24 AM
Moon Transit: 2:48 PM
Moonset: 8:04 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

2:02 AM - 4:32 AM
2:18 PM - 4:48 PM

Minor Periods

7:34 PM - 9:04 PM
8:54 AM - 10:24 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 12:52 AM
Sunset: 7:08 PM
Daylight: 12 hrs 32 mins

Moonrise: 10:33 AM
Moon Transit: 3:34 PM
Moonset: 8:29 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

2:47 AM - 5:17 AM
3:04 PM - 5:34 PM

Minor Periods

7:59 PM - 9:29 PM
10:03 AM - 11:33 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 12:52 AM
Sunset: 7:08 PM
Daylight: 12 hrs 32 mins

Moonrise: 10:33 AM
Moon Transit: 3:34 PM
Moonset: 8:29 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

2:47 AM - 5:17 AM
3:04 PM - 5:34 PM

Minor Periods

7:59 PM - 9:29 PM
10:03 AM - 11:33 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 12:52 AM
Sunset: 7:06 PM
Daylight: 12 hrs 29 mins

Moonrise: 11:40 AM
Moon Transit: 4:22 PM
Moonset: 8:58 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

3:34 AM - 6:04 AM
3:52 PM - 6:22 PM

Minor Periods

8:28 PM - 9:58 PM
11:10 AM - 12:40 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 12:52 AM
Sunset: 7:06 PM
Daylight: 12 hrs 29 mins

Moonrise: 11:40 AM
Moon Transit: 4:22 PM
Moonset: 8:58 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

3:34 AM - 6:04 AM
3:52 PM - 6:22 PM

Minor Periods

8:28 PM - 9:58 PM
11:10 AM - 12:40 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 12:51 AM
Sunset: 7:05 PM
Daylight: 12 hrs 26 mins

Moonrise: 12:45 AM
Moon Transit: 5:11 PM
Moonset: 9:34 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

4:23 AM - 6:53 AM
4:41 PM - 7:11 PM

Minor Periods

9:04 PM - 10:34 PM
12:15 AM - 1:45 PM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 12:51 AM
Sunset: 7:05 PM
Daylight: 12 hrs 26 mins

Moonrise: 12:45 AM
Moon Transit: 5:11 PM
Moonset: 9:34 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

4:23 AM - 6:53 AM
4:41 PM - 7:11 PM

Minor Periods

9:04 PM - 10:34 PM
12:15 AM - 1:45 PM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 12:51 AM
Sunset: 7:03 PM
Daylight: 12 hrs 23 mins

Moonrise: 1:46 PM
Moon Transit: 6:02 PM
Moonset: 10:17 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

5:13 AM - 7:43 AM
5:32 PM - 8:02 PM

Minor Periods

9:47 PM - 11:17 PM
1:16 PM - 2:46 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 12:51 AM
Sunset: 7:03 PM
Daylight: 12 hrs 23 mins

Moonrise: 1:46 PM
Moon Transit: 6:02 PM
Moonset: 10:17 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

5:13 AM - 7:43 AM
5:32 PM - 8:02 PM

Minor Periods

9:47 PM - 11:17 PM
1:16 PM - 2:46 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:41 AM
Sun Transit: 12:51 AM
Sunset: 7:01 PM
Daylight: 12 hrs 21 mins

Moonrise: 2:42 PM
Moon Transit: 6:54 PM
Moonset: 11:07 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

6:04 AM - 8:34 AM
6:24 PM - 8:54 PM

Minor Periods

12:00 AM - 12:00 AM
2:12 PM - 3:42 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:41 AM
Sun Transit: 12:51 AM
Sunset: 7:01 PM
Daylight: 12 hrs 21 mins

Moonrise: 2:42 PM
Moon Transit: 6:54 PM
Moonset: 11:07 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

6:04 AM - 8:34 AM
6:24 PM - 8:54 PM

Minor Periods

12:00 AM - 12:00 AM
2:12 PM - 3:42 PM

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.

Webcams Near Byron, IL

Webcams provided by windy.com — add a webcam