Water Temperature of the Rock River in Byron, IL

Current Water Temperature

71.6°F

Measurement Time: Wednesday, June 24, 2026, 5:15 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

62.1°F
Fog
Fog
62.1°F
64.9°F
96%
WSW 6.7 mph
14.1 mph
64.7°F
61.1°F
0 in
25%
8 mi
1014 mbar
0

Five Day Weather Forecast

Heavy rain
Wed
H: 80°F
L: 60°F
Sunny
Thu
H: 77°F
L: 59°F
Partly Cloudy
Fri
H: 72°F
L: 56°F
Patchy rain nearby
Sat
H: 78°F
L: 54°F
Moderate rain
Sun
H: 85°F
L: 67°F

Air Quality

AQI: 1 - Good
PM2.5: 6.9 μg/m3
PM10: 7.2 μg/m3
Carbon Monoxide: 133 μg/m3
Nitrogen Dioxide: 10.2 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 49 μg/m3

Astronomical

Sunrise: 5:22 AM
Sun Transit: 1:00 PM
Sunset: 8:37 PM
Daylight: 15 hrs 16 mins
Moonrise: 4:09 PM
Moon Transit: 9:07 PM
Moonset: 1:33 AM
Moon Phase: First Quarter
Moon Illumination: 71.7%

Best Times for Fishing or Hunting

Major Periods

8:21 AM - 10:51 AM
8:37 PM - 11:07 PM

Minor Periods

3:39 PM - 5:09 PM
1:03 AM - 2:33 AM

Action Rating: 3 out of 5

Severe Thunderstorm Watch issued June 24 at 1:55PM CDT until June 24 at 10:00PM CDT by NWS Chicago IL

Effective: Wed June 24, 2026, 1:55 PM
Expires: Wed June 24, 2026, 10:00 PM

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 387 IN EFFECT UNTIL 10 PM CDT THIS EVENING FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 12 COUNTIES IN CENTRAL ILLINOIS LIVINGSTON IN NORTH CENTRAL ILLINOIS BOONE DE KALB LA SALLE LEE OGLE WINNEBAGO IN NORTHEAST ILLINOIS GRUNDY KANE KENDALL LAKE IL MCHENRY THIS INCLUDES THE CITIES OF ALGONQUIN, AURORA, BELVIDERE, BUFFALO GROVE, BYRON, COAL CITY, CRYSTAL LAKE, DEKALB, DIXON, DWIGHT, ELGIN, FAIRBURY, GURNEE, LA SALLE, MARSEILLES, MCHENRY, MENDOTA, MINOOKA, MORRIS, MUNDELEIN, OREGON, OSWEGO, OTTAWA, PLANO, PONTIAC, ROCHELLE, ROCKFORD, STREATOR, SYCAMORE, WAUKEGAN, WOODSTOCK, AND YORKVILLE.


Severe Thunderstorm Watch issued June 24 at 5:04PM CDT until June 24 at 10:00PM CDT by NWS Chicago IL

Effective: Wed June 24, 2026, 5:04 PM
Expires: Wed June 24, 2026, 10:00 PM

SEVERE THUNDERSTORM WATCH 387 REMAINS VALID UNTIL 10 PM CDT THIS EVENING FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 12 COUNTIES IN CENTRAL ILLINOIS LIVINGSTON IN NORTH CENTRAL ILLINOIS BOONE DE KALB LA SALLE LEE OGLE WINNEBAGO IN NORTHEAST ILLINOIS GRUNDY KANE KENDALL LAKE IL MCHENRY THIS INCLUDES THE CITIES OF ALGONQUIN, AURORA, BELVIDERE, BUFFALO GROVE, BYRON, COAL CITY, CRYSTAL LAKE, DEKALB, DIXON, DWIGHT, ELGIN, FAIRBURY, GURNEE, LA SALLE, MARSEILLES, MCHENRY, MENDOTA, MINOOKA, MORRIS, MUNDELEIN, OREGON, OSWEGO, OTTAWA, PLANO, PONTIAC, ROCHELLE, ROCKFORD, STREATOR, SYCAMORE, WAUKEGAN, WOODSTOCK, AND YORKVILLE.


Special Weather Statement issued June 24 at 7:10PM CDT by NWS Milwaukee/Sullivan WI

Effective: Wed June 24, 2026, 7:10 PM
Expires: Wed June 24, 2026, 8:00 PM

At 710 PM CDT, Doppler radar was tracking a strong thunderstorm near Orfordville, or near Beloit, moving east at 30 mph. HAZARD...Wind gusts up to 40 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Janesville, Beloit, South Beloit, Clinton, Orfordville, Newark, Tiffany, Foxhollow, Shopiere, Afton, and Avon. This includes the following highways... Interstate 39/90 between mile markers 178 and 187. Interstate 43 between mile markers 0 and 11.

If outdoors, consider seeking shelter inside a building. A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for south central and southeastern Wisconsin.


Wednesday, June 24, 2026

Weather Forecast

Heavy rain
79.9°F
60.1°F
68.4°F
78%
1.04 in
75%
0%
16.1 mph
8.6


Air Quality

AQI: 1 - Good
PM2.5: 7.66 μg/m3
PM10: 7.95 μg/m3
Carbon Monoxide: 136.79 μg/m3
Nitrogen Dioxide: 9.56 μg/m3
Sulphur Dioxide: 1.47 μg/m3
Ozone: 64 μg/m3

Astronomical

Sunrise: 5:22 AM
Sun Transit: 1:00 PM
Sunset: 8:37 PM
Daylight: 15 hrs 16 mins
Moonrise: 4:09 PM
Moon Transit: 9:07 PM
Moonset: 1:33 AM
Moon Phase: First Quarter
Moon Illumination: 71.7%

Best Times for Fishing or Hunting

Major Periods

8:21 AM - 10:51 AM
8:37 PM - 11:07 PM

Minor Periods

3:39 PM - 5:09 PM
1:03 AM - 2:33 AM

Action Rating: 3 out of 5

Thursday, June 25, 2026

Weather Forecast

Sunny
77°F
59.4°F
66.7°F
78%
0 in
17%
0%
11.9 mph
8.3


Air Quality

AQI: 1 - Good
PM2.5: 4.48 μg/m3
PM10: 4.58 μg/m3
Carbon Monoxide: 131.92 μg/m3
Nitrogen Dioxide: 7.98 μg/m3
Sulphur Dioxide: 0.41 μg/m3
Ozone: 54.21 μg/m3

Astronomical

Sunrise: 5:22 AM
Sun Transit: 1:00 PM
Sunset: 8:37 PM
Daylight: 15 hrs 15 mins
Moonrise: 5:13 PM
Moon Transit: 9:53 PM
Moonset: 1:58 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.2%

Best Times for Fishing or Hunting

Major Periods

9:06 AM - 11:36 AM
9:23 PM - 11:53 PM

Minor Periods

4:43 PM - 6:13 PM
1:28 AM - 2:58 AM

Action Rating: 2 out of 5

Friday, June 26, 2026

Weather Forecast

Partly Cloudy
71.8°F
56.4°F
63.5°F
81%
0 in
13%
0%
15.2 mph
7.8


Air Quality

AQI: 1 - Good
PM2.5: 6.26 μg/m3
PM10: 6.3 μg/m3
Carbon Monoxide: 135.54 μg/m3
Nitrogen Dioxide: 7.94 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 75.42 μg/m3

Astronomical

Sunrise: 5:22 AM
Sun Transit: 1:00 PM
Sunset: 8:37 PM
Daylight: 15 hrs 15 mins
Moonrise: 6:17 PM
Moon Transit: 10:41 PM
Moonset: 2:28 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.2%

Best Times for Fishing or Hunting

Major Periods

9:53 AM - 12:23 AM
12:00 AM - 12:00 AM

Minor Periods

5:47 PM - 7:17 PM
1:58 AM - 3:28 AM

Action Rating: 2 out of 5

Saturday, June 27, 2026

Weather Forecast

Patchy rain nearby
77.8°F
54.3°F
66.2°F
83%
0 in
25%
0%
10.7 mph
7.4


Air Quality

AQI: 1 - Good
PM2.5: 5.69 μg/m3
PM10: 5.81 μg/m3
Carbon Monoxide: 129.42 μg/m3
Nitrogen Dioxide: 5.2 μg/m3
Sulphur Dioxide: 1.63 μg/m3
Ozone: 83.17 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 1:00 PM
Sunset: 8:37 PM
Daylight: 15 hrs 15 mins
Moonrise: 7:16 PM
Moon Transit: 11:32 PM
Moonset: 3:03 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.2%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

6:46 PM - 8:16 PM
2:33 AM - 4:03 AM

Action Rating: 3 out of 5

Sunday, June 28, 2026

Weather Forecast

Moderate rain
85.3°F
67°F
75.4°F
89%
0.34 in
87%
0%
14.5 mph
6.3


Air Quality

AQI: 1 - Good
PM2.5: 4.22 μg/m3
PM10: 4.62 μg/m3
Carbon Monoxide: 142.5 μg/m3
Nitrogen Dioxide: 5.67 μg/m3
Sulphur Dioxide: 1.43 μg/m3
Ozone: 72.85 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 1:00 PM
Sunset: 8:37 PM
Daylight: 15 hrs 14 mins
Moonrise: 8:11 PM
Moon Transit: 12:00 AM
Moonset: 3:46 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:33 AM - 2:03 PM

Minor Periods

7:41 PM - 9:11 PM
3:16 AM - 4:46 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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