Water Temperature of the Norwalk River in Norwalk, CT

Current Water Temperature

48.4°F

Measurement Time: Tuesday, April 7, 2026, 3:06 PM EDT

Temperature Locations

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Local Points of Interest

The Maritime Aquarium

Norwalk River

Station Name: NORWALK RIVER AT NORWALK AQUARIUM NR S NORWALK, CT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
50 N Water St
Norwalk, CT 06854
Fairfield County

GPS Coordinates: 41.10161944, -73.4159472

Nearby Water Temperatures

Norwalk River, Norwalk, CT (0.8 mi)
Norwalk Harbor, Norwalk, CT (1.5 mi)
Saugatuck River, Westport, CT (2.6 mi)
Saugatuck River, Westport Village, CT (2.9 mi)
Mill River, Fairfield, CT (6.8 mi)
Mill River, Southport, CT (7.3 mi)
Rooster River, Bridgeport, CT (11.6 mi)
Bridgeport Harbor, Bridgeport, CT (13.2 mi)
Frost Creek, Lattingtown, NY (16.4 mi)
Housatonic River, Stratford, CT (16.5 mi)
Flax Pond, Old Field, NY (17.1 mi)
East Creek, Sands Point, NY (22.4 mi)
Long Island Sound, Kings Point, NY (27.1 mi)
Hudson River, Yonkers, NY (27.9 mi)
Bronx River, Bronx, NY (29.1 mi)

Weather for Norwalk, Connecticut

Current Weather

46.9°F
Sunny
Sunny
40.2°F
43°F
24%
NW 17 mph
21.3 mph
36.5°F
20.9°F
0 in
0%
9 mi
1024 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 53°F
L: 33°F
Sunny
Wed
H: 48°F
L: 26°F
Partly Cloudy
Thu
H: 49°F
L: 35°F
Mist
Fri
H: 60°F
L: 35°F
Patchy rain nearby
Sat
H: 58°F
L: 44°F

Air Quality

AQI: 1 - Good
PM2.5: 3.75 μg/m3
PM10: 4.15 μg/m3
Carbon Monoxide: 177.85 μg/m3
Nitrogen Dioxide: 6.65 μg/m3
Sulphur Dioxide: 1.75 μg/m3
Ozone: 84 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 12:55 AM
Sunset: 7:25 PM
Daylight: 12 hrs 58 mins
Moonrise: 12:31 AM
Moon Transit: 4:50 AM
Moonset: 9:07 AM
Moon Phase: Waning Gibbous
Moon Illumination: 64.3%

Best Times for Fishing or Hunting

Major Periods

4:20 AM - 6:50 AM
7:03 PM - 9:33 PM

Minor Periods

8:37 AM - 10:07 AM
12:01 AM - 1:31 AM

Action Rating: 4 out of 5

Freeze Watch issued April 7 at 2:12AM EDT until April 8 at 10:00AM EDT by NWS Upton NY

Effective: Tue April 7, 2026, 2:12 AM
Expires: Wed April 8, 2026, 2:30 AM

* WHAT...Sub-freezing temperatures as low as 31 possible. * WHERE...In New Jersey, Eastern Essex, Eastern Union, and Hudson Counties. In New York, Bronx, Northern Nassau, Richmond (Staten Island), and Southern Nassau Counties. * WHEN...From late tonight through Wednesday morning. * IMPACTS...Frost and freeze conditions could kill sensitive vegetation.

Take steps now to protect tender plants from the cold.
Tuesday, April 7, 2026

Weather Forecast

Sunny
52.7°F
32.5°F
44.3°F
53%
0 in
0%
0%
19.2 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 10.08 μg/m3
PM10: 10.51 μg/m3
Carbon Monoxide: 193.45 μg/m3
Nitrogen Dioxide: 21.17 μg/m3
Sulphur Dioxide: 3.85 μg/m3
Ozone: 66.96 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 12:55 AM
Sunset: 7:25 PM
Daylight: 12 hrs 58 mins
Moonrise: 12:31 AM
Moon Transit: 4:50 AM
Moonset: 9:07 AM
Moon Phase: Waning Gibbous
Moon Illumination: 64.3%

Best Times for Fishing or Hunting

Major Periods

4:20 AM - 6:50 AM
7:03 PM - 9:33 PM

Minor Periods

8:37 AM - 10:07 AM
12:01 AM - 1:31 AM

Action Rating: 4 out of 5

Wednesday, April 8, 2026

Weather Forecast

Sunny
47.5°F
25.7°F
37.1°F
51%
0 in
0%
0%
13 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 5.49 μg/m3
PM10: 6.13 μg/m3
Carbon Monoxide: 180.37 μg/m3
Nitrogen Dioxide: 9.31 μg/m3
Sulphur Dioxide: 2.67 μg/m3
Ozone: 85.52 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 12:55 AM
Sunset: 7:26 PM
Daylight: 13 hrs mins
Moonrise: 1:26 AM
Moon Transit: 5:41 AM
Moonset: 9:58 AM
Moon Phase: Last Quarter
Moon Illumination: 53.2%

Best Times for Fishing or Hunting

Major Periods

5:11 AM - 7:41 AM
7:55 PM - 10:25 PM

Minor Periods

9:28 AM - 10:58 AM
12:56 AM - 2:26 AM

Action Rating: 3 out of 5

Thursday, April 9, 2026

Weather Forecast

Partly Cloudy
48.7°F
34.5°F
40.5°F
73%
0 in
0%
0%
10.5 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 11.51 μg/m3
PM10: 14.7 μg/m3
Carbon Monoxide: 203.73 μg/m3
Nitrogen Dioxide: 23.26 μg/m3
Sulphur Dioxide: 5.54 μg/m3
Ozone: 74.28 μg/m3

Astronomical

Sunrise: 6:24 AM
Sun Transit: 12:55 AM
Sunset: 7:27 PM
Daylight: 13 hrs 3 mins
Moonrise: 2:14 AM
Moon Transit: 6:33 AM
Moonset: 10:56 AM
Moon Phase: Last Quarter
Moon Illumination: 41.9%

Best Times for Fishing or Hunting

Major Periods

6:03 AM - 8:33 AM
8:45 PM - 11:15 PM

Minor Periods

10:26 AM - 11:56 AM
1:44 AM - 3:14 AM

Action Rating: 3 out of 5

Friday, April 10, 2026

Weather Forecast

Mist
60.4°F
35.4°F
43.5°F
83%
0 in
0%
0%
12.5 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 13.81 μg/m3
PM10: 17.09 μg/m3
Carbon Monoxide: 244.45 μg/m3
Nitrogen Dioxide: 23.72 μg/m3
Sulphur Dioxide: 6.43 μg/m3
Ozone: 71.2 μg/m3

Astronomical

Sunrise: 6:22 AM
Sun Transit: 12:54 AM
Sunset: 7:28 PM
Daylight: 13 hrs 6 mins
Moonrise: 2:54 AM
Moon Transit: 7:23 AM
Moonset: 11:59 AM
Moon Phase: Last Quarter
Moon Illumination: 31.0%

Best Times for Fishing or Hunting

Major Periods

6:53 AM - 9:23 AM
12:00 AM - 12:00 AM

Minor Periods

11:29 AM - 12:59 AM
2:24 AM - 3:54 AM

Action Rating: 2 out of 5

Saturday, April 11, 2026

Weather Forecast

Patchy rain nearby
57.9°F
44.3°F
51.4°F
58%
0.01 in
84%
0%
13.4 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 15.13 μg/m3
PM10: 16.23 μg/m3
Carbon Monoxide: 237.1 μg/m3
Nitrogen Dioxide: 31 μg/m3
Sulphur Dioxide: 6.5 μg/m3
Ozone: 49.85 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 12:54 AM
Sunset: 7:29 PM
Daylight: 13 hrs 8 mins
Moonrise: 3:27 AM
Moon Transit: 8:12 AM
Moonset: 1:05 PM
Moon Phase: Last Quarter
Moon Illumination: 21.1%

Best Times for Fishing or Hunting

Major Periods

7:42 AM - 10:12 AM
12:00 AM - 12:00 AM

Minor Periods

12:35 AM - 2:05 PM
2:57 AM - 4:27 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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