Water Temperature of the Yellow River in Knox, IN

Current Water Temperature

53.4°F

Measurement Time: Friday, May 1, 2026, 10:45 PM CDT

Temperature Locations

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Local Points of Interest

Wythougan Park

Yellow River

Station Name: YELLOW RIVER AT KNOX, IN
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 699 feet

Nearest Address:
N 400 E
Knox, IN 46534
Starke County

GPS Coordinates: 41.3028196, -86.6205695

Nearby Water Temperatures

Yellow River, Knox, IN (6.1 mi)
Kankakee River, Hamlet, IN (7.5 mi)
Yellow River, Oak Grove, IN (8.3 mi)
Kankakee River, Dunns Bridge, IN (18.9 mi)
Kankakee River, Shelby, IN (38.3 mi)
Deep River, Lake Station, IN (39.4 mi)
St. Joseph River, Niles, MI (40.9 mi)
Saint Joseph River, Niles, MI (41.4 mi)
Little Calumet River, Gary, IN (44.4 mi)
Iroquois River, Foresman, IN (46.6 mi)
Lake Michigan, Stevensville, MI (46.9 mi)
Hart Ditch, Munster, IN (48 mi)
Plum Creek, Dyer, IN (48.2 mi)
Indiana Harbor Canal, East Chicago, IN (50 mi)
Grand Calumet River, Hammond, IN (50.5 mi)

Weather for Knox, Indiana

Current Weather

32.4°F
Clear
Clear
30.5°F
34.7°F
100%
ENE 2.5 mph
4.9 mph
32.1°F
28.2°F
0 in
0%
9 mi
1019 mbar
0

Five Day Weather Forecast

Sunny
Sat
H: 58°F
L: 33°F
Patchy rain nearby
Sun
H: 63°F
L: 39°F
Moderate rain
Mon
H: 72°F
L: 52°F
Patchy rain nearby
Tue
H: 54°F
L: 41°F
Patchy rain nearby
Wed
H: 57°F
L: 42°F

Air Quality

AQI: 1 - Good
PM2.5: 4.75 μg/m3
PM10: 5.25 μg/m3
Carbon Monoxide: 147.85 μg/m3
Nitrogen Dioxide: 6.75 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 59 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 12:43 AM
Sunset: 7:45 PM
Daylight: 14 hrs 3 mins
Moonrise: 9:15 PM
Moon Transit: 1:00 AM
Moonset: 5:44 AM
Moon Phase: Full
Moon Illumination: 98.4%

Best Times for Fishing or Hunting

Major Periods

12:30 AM - 3:00 AM
1:22 PM - 3:52 PM

Minor Periods

8:45 PM - 10:15 PM
5:14 AM - 6:44 AM

Action Rating: 4 out of 5

Frost Advisory issued May 1 at 11:53AM EDT until May 2 at 9:00AM EDT by NWS Northern Indiana

Effective: Fri May 1, 2026, 10:53 AM
Expires: Sat May 2, 2026, 8:00 AM

* WHAT...Temperatures falling through the 30s will result in frost formation. * WHERE...Portions of northern Indiana and northwest Ohio. * WHEN...From 2 AM EDT /1 AM CDT/ to 9 AM EDT /8 AM CDT/ Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. * ADDITIONAL DETAILS...It is possible that clouds impact how far temperatures fall tonight.

Take steps now to protect tender plants from the cold.


Freeze Warning issued May 1 at 11:53AM EDT until May 2 at 9:00AM EDT by NWS Northern Indiana

Effective: Fri May 1, 2026, 10:53 AM
Expires: Sat May 2, 2026, 8:00 AM

* WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...Portions of northern Indiana, southwest Michigan, and northwest Ohio. * WHEN...From 2 AM EDT /1 AM CDT/ to 9 AM EDT /8 AM CDT/ Saturday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...It is possible that clouds impact how far temperatures fall tonight, but initial indications are that temperatures will have fallen to freezing before clouds arrive.

Take steps now to protect tender plants from the cold.


Frost Advisory issued May 1 at 2:18PM CDT until May 2 at 8:00AM CDT by NWS Chicago IL

Effective: Fri May 1, 2026, 2:18 PM
Expires: Sat May 2, 2026, 12:30 AM

* WHAT...Temperatures as low as 32 degrees Fahrenheit will result in frost formation. * WHERE...Portions of east central, north central, and northeast Illinois and northwest Indiana. * WHEN...From 1 AM CDT /2 AM EDT/ to 8 AM CDT /9 AM EDT/ Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.


Frost Advisory issued May 1 at 9:01PM CDT until May 2 at 8:00AM CDT by NWS Chicago IL

Effective: Fri May 1, 2026, 9:01 PM
Expires: Sat May 2, 2026, 7:15 AM

* WHAT...Temperatures as low as 32 degrees will result in frost formation. * WHERE...Portions of east central, north central, and northeast Illinois and northwest Indiana. * WHEN...From 1 AM CDT /2 AM EDT/ to 8 AM CDT /9 AM EDT/ Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.
Saturday, May 2, 2026

Weather Forecast

Sunny
57.9°F
32.5°F
42.1°F
62%
0 in
0%
0%
13.4 mph
5.4


Air Quality

AQI: 1 - Good
PM2.5: 5.3 μg/m3
PM10: 6.32 μg/m3
Carbon Monoxide: 150.45 μg/m3
Nitrogen Dioxide: 5.44 μg/m3
Sulphur Dioxide: 2.48 μg/m3
Ozone: 74.16 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 12:43 AM
Sunset: 7:45 PM
Daylight: 14 hrs 3 mins
Moonrise: 9:15 PM
Moon Transit: 1:00 AM
Moonset: 5:44 AM
Moon Phase: Full
Moon Illumination: 98.4%

Best Times for Fishing or Hunting

Major Periods

12:30 AM - 3:00 AM
1:22 PM - 3:52 PM

Minor Periods

8:45 PM - 10:15 PM
5:14 AM - 6:44 AM

Action Rating: 4 out of 5

Sunday, May 3, 2026

Weather Forecast

Patchy rain nearby
63.1°F
39.2°F
50.9°F
64%
0.13 in
86%
0%
21.3 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 8.45 μg/m3
PM10: 10.03 μg/m3
Carbon Monoxide: 162.65 μg/m3
Nitrogen Dioxide: 6.97 μg/m3
Sulphur Dioxide: 3.14 μg/m3
Ozone: 81 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 12:43 AM
Sunset: 7:46 PM
Daylight: 14 hrs 5 mins
Moonrise: 10:17 PM
Moon Transit: 1:48 AM
Moonset: 6:18 AM
Moon Phase: Full
Moon Illumination: 94.4%

Best Times for Fishing or Hunting

Major Periods

1:18 AM - 3:48 AM
2:11 PM - 4:41 PM

Minor Periods

9:47 PM - 11:17 PM
5:48 AM - 7:18 AM

Action Rating: 4 out of 5

Monday, May 4, 2026

Weather Forecast

Moderate rain
71.9°F
52.4°F
61.1°F
81%
0.51 in
82%
0%
23.3 mph
6.6


Air Quality

AQI: 1 - Good
PM2.5: 8.74 μg/m3
PM10: 9.86 μg/m3
Carbon Monoxide: 159.85 μg/m3
Nitrogen Dioxide: 4.93 μg/m3
Sulphur Dioxide: 3.85 μg/m3
Ozone: 88.44 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 12:43 AM
Sunset: 7:47 PM
Daylight: 14 hrs 7 mins
Moonrise: 11:14 PM
Moon Transit: 2:38 AM
Moonset: 6:58 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.0%

Best Times for Fishing or Hunting

Major Periods

2:08 AM - 4:38 AM
3:02 PM - 5:32 PM

Minor Periods

12:00 AM - 12:00 AM
6:28 AM - 7:58 AM

Action Rating: 2 out of 5

Tuesday, May 5, 2026

Weather Forecast

Patchy rain nearby
53.7°F
41°F
49.4°F
69%
0.14 in
85%
0%
13.4 mph
2.3


Air Quality

AQI: 1 - Good
PM2.5: 8.07 μg/m3
PM10: 8.64 μg/m3
Carbon Monoxide: 150.04 μg/m3
Nitrogen Dioxide: 6.37 μg/m3
Sulphur Dioxide: 4.19 μg/m3
Ozone: 84.44 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 12:43 AM
Sunset: 7:48 PM
Daylight: 14 hrs 10 mins
Moonrise: 12:14 AM
Moon Transit: 3:29 AM
Moonset: 7:46 AM
Moon Phase: Waning Gibbous
Moon Illumination: 79.8%

Best Times for Fishing or Hunting

Major Periods

2:59 AM - 5:29 AM
3:53 PM - 6:23 PM

Minor Periods

7:16 AM - 8:46 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, May 6, 2026

Weather Forecast

Patchy rain nearby
57°F
41.5°F
46.8°F
72%
0.07 in
87%
0%
10.7 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 3.73 μg/m3
PM10: 4 μg/m3
Carbon Monoxide: 151.57 μg/m3
Nitrogen Dioxide: 4.5 μg/m3
Sulphur Dioxide: 1.72 μg/m3
Ozone: 76.38 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 12:43 AM
Sunset: 7:49 PM
Daylight: 14 hrs 12 mins
Moonrise: 12:04 AM
Moon Transit: 4:21 AM
Moonset: 8:41 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.0%

Best Times for Fishing or Hunting

Major Periods

3:51 AM - 6:21 AM
4:44 PM - 7:14 PM

Minor Periods

8:11 AM - 9:41 AM
12:00 AM - 12:00 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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