Water Temperature of the Rock River in Byron, IL

Current Water Temperature

41.2°F

Measurement Time: Saturday, March 14, 2026, 7:15 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

36°F
Overcast
Overcast
26°F
34.5°F
67%
ESE 17 mph
24.5 mph
24.2°F
27°F
0 in
100%
9 mi
1011 mbar
0

Five Day Weather Forecast

Moderate rain
Sun
H: 54°F
L: 28°F
Moderate or heavy snow showers
Mon
H: 24°F
L: 11°F
Partly Cloudy
Tue
H: 31°F
L: 13°F
Fog
Wed
H: 35°F
L: 22°F
Mist
Thu
H: 43°F
L: 31°F

Air Quality

PM2.5: 9.45 μg/m3
PM10: 10.15 μg/m3
Carbon Monoxide: 184.85 μg/m3
Nitrogen Dioxide: 4.95 μg/m3
Sulphur Dioxide: 7.85 μg/m3
Ozone: 70 μg/m3

Astronomical

Sunrise: 7:09 AM
Sun Transit: 12:00 AM
Sunset: 7:04 PM
Daylight: 11 hrs 55 mins
Moonrise: 5:36 AM
Moon Transit: 10:27 AM
Moonset: 3:27 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.6%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

2:57 PM - 4:27 PM
5:06 AM - 6:36 AM

Action Rating: 2 out of 5

Winter Storm Watch issued March 14 at 11:51AM CDT until March 16 at 7:00PM CDT by NWS Chicago IL

Effective: Sat March 14, 2026, 11:51 AM
Expires: Sat March 14, 2026, 10:00 PM

* WHAT...Low visibility due to falling and blowing snow possible. * WHERE...Boone, Lee, Ogle, and Winnebago Counties. * WHEN...From Sunday evening through Monday evening. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Plan on hazardous travel conditions, including throughout the day on Monday. * ADDITIONAL DETAILS...Northwesterly wind gusts in excess of 45 mph are possible. Total snow accumulations may exceed 4 inches.

Monitor the latest forecasts for updates on this situation.


Winter Storm Watch issued March 14 at 8:06PM CDT until March 16 at 7:00PM CDT by NWS Chicago IL

Effective: Sat March 14, 2026, 8:06 PM
Expires: Sun March 15, 2026, 6:15 AM

* WHAT...Heavy snow possible. Total snow accumulations between 3 and 5 inches possible. Winds could gust as high as 50 mph. * WHERE...Boone, Lee, Ogle, and Winnebago Counties. * WHEN...From Sunday evening through Monday evening. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Plan on slippery road conditions. Widespread blowing snow could significantly reduce visibility. The hazardous conditions could impact the Monday morning and evening commutes. Gusty winds could bring down tree branches.

Monitor the latest forecasts for updates on this situation.


Blizzard Warning issued March 14 at 8:13PM CDT until March 16 at 4:00PM CDT by NWS Quad Cities IA IL

Effective: Sat March 14, 2026, 8:13 PM
Expires: Sun March 15, 2026, 4:15 AM

* WHAT...Blizzard conditions expected. Total snow accumulations between 4 and 8 inches. Winds gusting as high as 50 to 60 mph. * WHERE...Portions of northwest Illinois and east central Iowa. * WHEN...From 7 PM Sunday to 4 PM CDT Monday. * IMPACTS...Travel could be very difficult. Widespread blowing snow could significantly reduce visibility. The hazardous conditions could impact the Monday morning commute. Gusty winds could bring down tree branches.

Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. In Iowa, the latest road conditions are available at 511ia.org or by calling 511. In Illinois, the latest road conditions are available at gettingaroundillinois.com.


Winter Storm Watch issued March 14 at 1:40PM CDT until March 16 at 7:00PM CDT by NWS Milwaukee/Sullivan WI

Effective: Sat March 14, 2026, 1:40 PM
Expires: Sat March 14, 2026, 9:45 PM

...PROLONGED WINTER STORM SYSTEM BEGINS TONIGHT AND CONTINUES THROUGH MONDAY... .A strong late winter storm system is expected to impact southern Wisconsin during the last half of the weekend in 3 phases: Saturday night into Sunday morning expecting snow accumulations of 1 to 3 inches and the potential for around a tenth of an inch of ice accumulation. Sunday late morning into Sunday afternoon will see milder temps and mostly rain with a few thunderstorms mainly outside of central and east-central Wisconsin. Light freezing rain is expected to continue over central and east-central Wisconsin. Sunday evening through Monday expect heavy banded snow to impact southern WI with snowfall totals from 5 to 9 inches with locally higher amounts possible. Wind gusts up to 45 mph will cause blowing snow and visibility restrictions. There remains considerable model uncertainty regarding snow amounts and end timing of winter impacts over southeast Wisconsin Sunday night into Monday Morning. The Winter Storm Watch will be maintained at this time. * WHAT...Heavy mixed precipitation possible. Total snow accumulations between 4 and 7 inches and ice accumulations around a light glaze possible. Winds could gust as high as 50 mph. * WHERE...Portions of south central and southeast Wisconsin. * WHEN...From Sunday afternoon through Monday evening. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Travel could be very difficult. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the Monday morning and evening commutes. Gusty winds could bring down tree branches.

Monitor the latest forecasts for updates on this situation.


Winter Storm Warning issued March 14 at 11:04PM CDT until March 16 at 4:00PM CDT by NWS Milwaukee/Sullivan WI

Effective: Sat March 14, 2026, 11:04 PM
Expires: Sun March 15, 2026, 7:15 AM

* WHAT...Heavy snow and some mixed precipitation expected. Total snow accumulations between 4 and 7 inches and ice accumulations around a light glaze. Winds gusting as high as 50 MPH leading to blowing and drifting snow. Near blizzard conditions are possible later Sunday night into early Monday morning. * WHERE...Dane, Green, Lafayette, Rock, and Jefferson Counties. * WHEN...From 7 PM Sunday to 4 PM CDT Monday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Visibilities may drop below 1/4 mile due to falling and blowing snow. The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages.

Persons are urged to stay indoors until conditions improve. If you must go outside, dress in layers. Several layers of clothes will keep you warmer than a single heavy coat. Cover exposed skin to reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a hat will keep you from losing your body heat. Persons should consider delaying all travel. Motorists should use extreme caution if travel is absolutely necessary.


Sunday, March 15, 2026

Weather Forecast

Moderate rain
54°F
27.5°F
40.3°F
85%
0.49 in
85%
0%
26.4 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 7.02 μg/m3
PM10: 7.93 μg/m3
Carbon Monoxide: 193.13 μg/m3
Nitrogen Dioxide: 8.59 μg/m3
Sulphur Dioxide: 5.22 μg/m3
Ozone: 77.08 μg/m3

Astronomical

Sunrise: 7:09 AM
Sun Transit: 12:00 AM
Sunset: 7:04 PM
Daylight: 11 hrs 55 mins
Moonrise: 5:36 AM
Moon Transit: 10:27 AM
Moonset: 3:27 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.6%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

2:57 PM - 4:27 PM
5:06 AM - 6:36 AM

Action Rating: 2 out of 5

Monday, March 16, 2026

Weather Forecast

Moderate or heavy snow showers
23.5°F
10.5°F
21.3°F
75%
0.34 in
89%
25%
27.3 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 2.26 μg/m3
PM10: 2.5 μg/m3
Carbon Monoxide: 172.53 μg/m3
Nitrogen Dioxide: 3.21 μg/m3
Sulphur Dioxide: 1.31 μg/m3
Ozone: 86.76 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 12:00 AM
Sunset: 7:05 PM
Daylight: 11 hrs 58 mins
Moonrise: 6:03 AM
Moon Transit: 11:15 AM
Moonset: 4:38 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:45 AM - 1:15 PM

Minor Periods

4:08 PM - 5:38 PM
5:33 AM - 7:03 AM

Action Rating: 3 out of 5

Tuesday, March 17, 2026

Weather Forecast

Partly Cloudy
31.3°F
12.9°F
21.5°F
63%
0 in
0%
0%
13.2 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 3.6 μg/m3
PM10: 3.91 μg/m3
Carbon Monoxide: 177.25 μg/m3
Nitrogen Dioxide: 3.03 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 88.16 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 12:00 AM
Sunset: 7:06 PM
Daylight: 12 hrs 1 mins
Moonrise: 6:26 AM
Moon Transit: 12:01 AM
Moonset: 5:49 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:31 AM - 2:01 PM

Minor Periods

5:19 PM - 6:49 PM
5:56 AM - 7:26 AM

Action Rating: 5 out of 5

Wednesday, March 18, 2026

Weather Forecast

Fog
35°F
22°F
29.8°F
95%
0.12 in
82%
25%
14.8 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 6.97 μg/m3
PM10: 7.38 μg/m3
Carbon Monoxide: 204.27 μg/m3
Nitrogen Dioxide: 5.83 μg/m3
Sulphur Dioxide: 1.68 μg/m3
Ozone: 89.85 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 12:00 AM
Sunset: 7:07 PM
Daylight: 12 hrs 3 mins
Moonrise: 6:47 AM
Moon Transit: 12:47 AM
Moonset: 7:01 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 2:30 AM
12:17 AM - 2:47 PM

Minor Periods

6:31 PM - 8:01 PM
6:17 AM - 7:47 AM

Action Rating: 3 out of 5

Thursday, March 19, 2026

Weather Forecast

Mist
42.8°F
30.8°F
35°F
93%
0 in
0%
0%
4.9 mph
1


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: 7:02 AM
Sun Transit: 12:00 AM
Sunset: 7:08 PM
Daylight: 12 hrs 6 mins
Moonrise: 7:09 AM
Moon Transit: 12:31 AM
Moonset: 8:15 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

12:01 AM - 2:31 AM
12:01 AM - 2:31 AM

Minor Periods

7:45 PM - 9:15 PM
6:39 AM - 8:09 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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