Water Temperature of the Rock River in Byron, IL
Current Water Temperature
Measurement Time: Wednesday, July 1, 2026, 11:15 PM CDT
Temperature Locations
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Local Points of Interest
River Park East; Hamas Park; Sunshine Park; Byron Forest Preserve DistrictStation 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

Five Day Weather Forecast

Thu
H: 99°F
L: 76°F

Fri
H: 87°F
L: 68°F

Sat
H: 88°F
L: 72°F

Sun
H: 85°F
L: 64°F

Mon
H: 81°F
L: 56°F
Air Quality
Nitrogen Dioxide: 6.5 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 47 μg/m3
Astronomical
Sun Transit: 1:01 PM
Sunset: 8:37 PM
Daylight: 15 hrs 12 mins
Moon Transit: 2:52 AM
Moonset: 7:43 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%
Best Times for Fishing or Hunting
Major Periods
2:22 AM - 4:52 AM2:51 PM - 5:21 PM
Minor Periods
10:05 PM - 11:35 PM7:13 AM - 8:43 AM
Action Rating: 2 out of 5
Extreme Heat Warning issued July 1 at 3:09PM CDT until July 3 at 12:00AM CDT by NWS Chicago IL
Effective: Wed July 1, 2026, 3:09 PM
Expires: Thu July 2, 2026, 1:15 AM
* WHAT...Dangerously hot conditions with peak afternoon heat index values of 100 to 105 degrees expected. * WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. * WHEN...Until midnight CDT /1 AM EDT/ Thursday Night. * IMPACTS...Heat related illnesses increase during heat waves. * ADDITIONAL DETAILS...Dangerous heat is expected to persist through Thursday. Thunderstorms may begin to bring some relief from the heat for portions of northern Illinois by Thursday afternoon or evening.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
Extreme Heat Warning issued July 2 at 3:03AM CDT until July 3 at 12:00AM CDT by NWS Chicago IL
Effective: Thu July 2, 2026, 3:03 AM
Expires: Thu July 2, 2026, 1:15 PM
* WHAT...Dangerously hot conditions with peak heat index values up to 105 degrees. * WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. * WHEN...Until midnight CDT /1 AM EDT/ tonight. * IMPACTS...Heat related illnesses increase during heat waves.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.42 μg/m3
Sulphur Dioxide: 0.79 μg/m3
Ozone: 73.21 μg/m3
Astronomical
Sun Transit: 1:01 PM
Sunset: 8:37 PM
Daylight: 15 hrs 12 mins
Moon Transit: 2:52 AM
Moonset: 7:43 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%
Best Times for Fishing or Hunting
Major Periods
2:22 AM - 4:52 AM2:51 PM - 5:21 PM
Minor Periods
10:05 PM - 11:35 PM7:13 AM - 8:43 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.74 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 65.58 μg/m3
Astronomical
Sun Transit: 1:01 PM
Sunset: 8:37 PM
Daylight: 15 hrs 11 mins
Moon Transit: 3:37 AM
Moonset: 8:49 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.3%
Best Times for Fishing or Hunting
Major Periods
3:07 AM - 5:37 AM3:35 PM - 6:05 PM
Minor Periods
10:27 PM - 11:57 PM8:19 AM - 9:49 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.82 μg/m3
Sulphur Dioxide: 0.85 μg/m3
Ozone: 74.29 μg/m3
Astronomical
Sun Transit: 1:01 PM
Sunset: 8:37 PM
Daylight: 15 hrs 10 mins
Moon Transit: 4:21 AM
Moonset: 9:55 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.6%
Best Times for Fishing or Hunting
Major Periods
3:51 AM - 6:21 AM4:18 PM - 6:48 PM
Minor Periods
12:00 AM - 12:00 AM9:25 AM - 10:55 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.52 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 66.33 μg/m3
Astronomical
Sun Transit: 1:01 PM
Sunset: 8:36 PM
Daylight: 15 hrs 9 mins
Moon Transit: 5:03 AM
Moonset: 11:01 AM
Moon Phase: Waning Gibbous
Moon Illumination: 59.8%
Best Times for Fishing or Hunting
Major Periods
4:33 AM - 7:03 AM5:01 PM - 7:31 PM
Minor Periods
10:31 AM - 12:01 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 14.33 μg/m3
Sulphur Dioxide: 0.71 μg/m3
Ozone: 38.13 μg/m3
Astronomical
Sun Transit: 1:01 PM
Sunset: 8:36 PM
Daylight: 15 hrs 8 mins
Moon Transit: 12:15 AM
Moonset: 12:08 AM
Moon Phase: Last Quarter
Moon Illumination: 48.6%
Best Times for Fishing or Hunting
Major Periods
11:45 AM - 2:15 PM11:45 AM - 2:15 PM
Minor Periods
11:38 AM - 1:08 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
