Water Temperature of the Norwalk River in Norwalk, CT

Current Water Temperature

57.9°F

Measurement Time: Friday, April 24, 2026, 4:06 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

48.9°F
Clear
Clear
46.7°F
52.6°F
71%
NE 5.4 mph
10.7 mph
50.3°F
35.6°F
0 in
0%
9 mi
1012 mbar
0

Five Day Weather Forecast

Sunny
Fri
H: 68°F
L: 47°F
Heavy rain
Sat
H: 48°F
L: 42°F
Moderate rain
Sun
H: 45°F
L: 41°F
Overcast
Mon
H: 55°F
L: 40°F
Partly Cloudy
Tue
H: 59°F
L: 41°F

Air Quality

AQI: 1 - Good
PM2.5: 10.55 μg/m3
PM10: 11.95 μg/m3
Carbon Monoxide: 273.85 μg/m3
Nitrogen Dioxide: 29.25 μg/m3
Sulphur Dioxide: 3.65 μg/m3
Ozone: 55 μg/m3

Astronomical

Sunrise: 6:01 AM
Sun Transit: 12:51 AM
Sunset: 7:43 PM
Daylight: 13 hrs 42 mins
Moonrise: 12:32 AM
Moon Transit: 7:58 PM
Moonset: 2:41 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%

Best Times for Fishing or Hunting

Major Periods

9:19 AM - 11:49 AM
7:28 PM - 9:58 PM

Minor Periods

12:02 AM - 1:32 PM
2:11 AM - 3:41 AM

Action Rating: 3 out of 5

Frost Advisory issued April 24 at 2:15PM EDT until April 25 at 8:00AM EDT by NWS Upton NY

Effective: Fri April 24, 2026, 2:15 PM
Expires: Sat April 25, 2026, 3:30 AM

* WHAT...Temperatures as low as 36 will result in frost formation. * WHERE...Northern Fairfield, Northern Middlesex, Northern New Haven, and Northern New London Counties. * WHEN...From midnight tonight to 8 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.
Friday, April 24, 2026

Weather Forecast

Sunny
68.4°F
46.8°F
57°F
42%
0 in
0%
0%
9.6 mph
6.2


Air Quality

AQI: 1 - Good
PM2.5: 5.23 μg/m3
PM10: 6.8 μg/m3
Carbon Monoxide: 207.05 μg/m3
Nitrogen Dioxide: 9.49 μg/m3
Sulphur Dioxide: 2.19 μg/m3
Ozone: 77.08 μg/m3

Astronomical

Sunrise: 6:01 AM
Sun Transit: 12:51 AM
Sunset: 7:43 PM
Daylight: 13 hrs 42 mins
Moonrise: 12:32 AM
Moon Transit: 7:58 PM
Moonset: 2:41 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%

Best Times for Fishing or Hunting

Major Periods

9:19 AM - 11:49 AM
7:28 PM - 9:58 PM

Minor Periods

12:02 AM - 1:32 PM
2:11 AM - 3:41 AM

Action Rating: 3 out of 5

Saturday, April 25, 2026

Weather Forecast

Heavy rain
48°F
41.7°F
44.2°F
80%
0.87 in
91%
0%
10.7 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 6.06 μg/m3
PM10: 7.03 μg/m3
Carbon Monoxide: 212.05 μg/m3
Nitrogen Dioxide: 14.92 μg/m3
Sulphur Dioxide: 2.95 μg/m3
Ozone: 67.64 μg/m3

Astronomical

Sunrise: 6:00 AM
Sun Transit: 12:51 AM
Sunset: 7:44 PM
Daylight: 13 hrs 45 mins
Moonrise: 1:44 PM
Moon Transit: 8:46 PM
Moonset: 3:10 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%

Best Times for Fishing or Hunting

Major Periods

10:09 AM - 12:39 AM
8:16 PM - 10:46 PM

Minor Periods

1:14 PM - 2:44 PM
2:40 AM - 4:10 AM

Action Rating: 2 out of 5

Sunday, April 26, 2026

Weather Forecast

Moderate rain
44.9°F
40.5°F
42.3°F
91%
0.45 in
87%
0%
14.1 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 4.83 μg/m3
PM10: 5.82 μg/m3
Carbon Monoxide: 166.61 μg/m3
Nitrogen Dioxide: 11.27 μg/m3
Sulphur Dioxide: 2.65 μg/m3
Ozone: 71.84 μg/m3

Astronomical

Sunrise: 5:58 AM
Sun Transit: 12:51 AM
Sunset: 7:45 PM
Daylight: 13 hrs 47 mins
Moonrise: 2:53 PM
Moon Transit: 9:30 PM
Moonset: 3:35 AM
Moon Phase: First Quarter
Moon Illumination: 72.3%

Best Times for Fishing or Hunting

Major Periods

10:55 AM - 1:25 PM
9:00 PM - 11:30 PM

Minor Periods

2:23 PM - 3:53 PM
3:05 AM - 4:35 AM

Action Rating: 2 out of 5

Monday, April 27, 2026

Weather Forecast

Overcast
54.8°F
40.3°F
47.1°F
79%
0 in
0%
0%
13.6 mph
5.5


Air Quality

AQI: 1 - Good
PM2.5: 5.58 μg/m3
PM10: 6.14 μg/m3
Carbon Monoxide: 169.02 μg/m3
Nitrogen Dioxide: 13.25 μg/m3
Sulphur Dioxide: 2.98 μg/m3
Ozone: 74.48 μg/m3

Astronomical

Sunrise: 5:57 AM
Sun Transit: 12:51 AM
Sunset: 7:46 PM
Daylight: 13 hrs 50 mins
Moonrise: 3:58 PM
Moon Transit: 10:13 PM
Moonset: 3:57 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.8%

Best Times for Fishing or Hunting

Major Periods

11:38 AM - 2:08 PM
12:00 AM - 12:00 AM

Minor Periods

3:28 PM - 4:58 PM
3:27 AM - 4:57 AM

Action Rating: 2 out of 5

Tuesday, April 28, 2026

Weather Forecast

Partly Cloudy
58.9°F
41.3°F
50.6°F
63%
0 in
0%
0%
15.4 mph
7.5


Air Quality

AQI: 1 - Good
PM2.5: 13.15 μg/m3
PM10: 13.9 μg/m3
Carbon Monoxide: 279.94 μg/m3
Nitrogen Dioxide: 41.7 μg/m3
Sulphur Dioxide: 4.47 μg/m3
Ozone: 39.77 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 12:51 AM
Sunset: 7:47 PM
Daylight: 13 hrs 52 mins
Moonrise: 5:03 PM
Moon Transit: 10:55 PM
Moonset: 4:18 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.6%

Best Times for Fishing or Hunting

Major Periods

12:20 AM - 2:50 PM
12:00 AM - 12:00 AM

Minor Periods

4:33 PM - 6:03 PM
3:48 AM - 5:18 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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