Water Temperature of the Mill River in Southport, CT

Current Water Temperature

49.5°F

Measurement Time: Thursday, April 18, 2024, 5:06 AM EDT

Temperature Locations

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Local Points of Interest

Perry's Green

Mill River

Station Name: MILL RIVER AT PEQUOT YACHT CLUB AT SOUTHPORT, CT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
657 Harbor Rd
Southport, CT 06890
Fairfield County

GPS Coordinates: 41.1325083, -73.2824833

Nearby Water Temperatures

Mill River, Fairfield, CT (0.6 mi)
Saugatuck River, Westport Village, CT (4.6 mi)
Rooster River, Bridgeport, CT (4.6 mi)
Saugatuck River, Westport, CT (4.8 mi)
Bridgeport Harbor, Bridgeport, CT (6 mi)
Norwalk River, Norwalk, CT (6.8 mi)
Norwalk Harbor, Norwalk, CT (7 mi)
Norwalk River, Norwalk, CT (7.3 mi)
Housatonic River, Stratford, CT (9.2 mi)
Flax Pond, Old Field, NY (13.8 mi)
New Haven Harbor, New Haven, CT (22.1 mi)
Frost Creek, Lattingtown, NY (22.6 mi)
Naugatuck River, Beacon Falls, CT (24.3 mi)
East Creek, Sands Point, NY (28.9 mi)
Great South Bay, West Sayville, NY (30.1 mi)

Weather for Southport, Connecticut

Current Weather

33.1°F
Mist
Mist
30.3°F
34.5°F
88%
WNW 3.1 mph
6 mph
30.4°F
31.2°F
0 in
0%
3 mi
1024 mbar
0

Five Day Weather Forecast

Moderate rain
Thu
H: 40°F
L: 34°F
Heavy rain
Fri
H: 36°F
L: 34°F
Fog
Sat
H: 36°F
L: 33°F
Cloudy
Sun
H: 47°F
L: 38°F
Patchy rain nearby
Mon
H: 47°F
L: 38°F

Air Quality

PM2.5: 42.75 μg/m3
PM10: 43.85 μg/m3
Carbon Monoxide: 615.85 μg/m3
Nitrogen Dioxide: 83.95 μg/m3
Sulphur Dioxide: 5.35 μg/m3
Ozone: 4 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 12:00 AM
Sunset: 5:49 PM
Daylight: 11 hrs 27 mins
Moonrise: 8:27 PM
Moon Transit: 1:19 AM
Moonset: 7:07 AM
Moon Phase: Full
Moon Illumination: 94.0%

Best Times for Fishing or Hunting

Major Periods

12:49 AM - 3:19 AM
3:28 PM - 5:58 PM

Minor Periods

7:57 PM - 9:27 PM
6:37 AM - 8:07 AM

Action Rating: 5 out of 5

Winter Weather Advisory issued March 4 at 12:50PM EST until March 6 at 12:00PM EST by NWS Albany NY

Effective: Wed March 4, 2026, 12:50 PM
Expires: Thu March 5, 2026, 6:00 AM

* WHAT...Mixed precipitation expected. Total snow and sleet accumulations up to one inch and ice accumulations up to one tenth to one quarter of an inch. * WHERE...In New York, the eastern Catskills, Schoharie Valley, Helderbergs, Mohawk Valley, southern Adirondacks, upper Hudson Valley, Capital District, and northern Taconics. In southern Vermont, Bennington and Windham Counties. In Massachusetts, Berkshire County. In Connecticut, Litchfield County. * WHEN...From 5 PM Thursday to noon EST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Friday morning commute. * ADDITIONAL DETAILS...Precipitation begins Thursday afternoon as mainly rain, changing over to a wintry mix of sleet and freezing rain, with some snow across northern areas. The wintry mix tapers off Friday morning. The highest ice amounts of locally around a quarter of an inch are expected across the southern Adirondacks and the high terrain of western New England.

Slow down and use caution while traveling. Be prepared for slippery roads. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.


Thursday, March 5, 2026

Weather Forecast

Moderate rain
40.3°F
33.6°F
35.5°F
94%
0.78 in
85%
0%
16.3 mph
0


Air Quality

AQI: 3 - Unhealthy for Sensitive Groups
PM2.5: 44.22 μg/m3
PM10: 45.53 μg/m3
Carbon Monoxide: 570.17 μg/m3
Nitrogen Dioxide: 78.79 μg/m3
Sulphur Dioxide: 10.91 μg/m3
Ozone: 10.52 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 12:00 AM
Sunset: 5:49 PM
Daylight: 11 hrs 27 mins
Moonrise: 8:27 PM
Moon Transit: 1:19 AM
Moonset: 7:07 AM
Moon Phase: Full
Moon Illumination: 94.0%

Best Times for Fishing or Hunting

Major Periods

12:49 AM - 3:19 AM
3:28 PM - 5:58 PM

Minor Periods

7:57 PM - 9:27 PM
6:37 AM - 8:07 AM

Action Rating: 5 out of 5

Friday, March 6, 2026

Weather Forecast

Heavy rain
36°F
33.5°F
35.1°F
93%
1.57 in
87%
3%
16.1 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 9.31 μg/m3
PM10: 10.33 μg/m3
Carbon Monoxide: 278.77 μg/m3
Nitrogen Dioxide: 17.7 μg/m3
Sulphur Dioxide: 2.97 μg/m3
Ozone: 71.2 μg/m3

Astronomical

Sunrise: 6:20 AM
Sun Transit: 12:00 AM
Sunset: 5:50 PM
Daylight: 11 hrs 30 mins
Moonrise: 9:31 PM
Moon Transit: 2:02 AM
Moonset: 7:28 AM
Moon Phase: Waning Gibbous
Moon Illumination: 87.6%

Best Times for Fishing or Hunting

Major Periods

1:32 AM - 4:02 AM
4:11 PM - 6:41 PM

Minor Periods

9:01 PM - 10:31 PM
6:58 AM - 8:28 AM

Action Rating: 2 out of 5

Saturday, March 7, 2026

Weather Forecast

Fog
36.2°F
32.9°F
34.5°F
97%
0 in
0%
0%
7.4 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 13.83 μg/m3
PM10: 15.53 μg/m3
Carbon Monoxide: 289.51 μg/m3
Nitrogen Dioxide: 22.76 μg/m3
Sulphur Dioxide: 3.8 μg/m3
Ozone: 49.16 μg/m3

Astronomical

Sunrise: 6:18 AM
Sun Transit: 12:00 AM
Sunset: 5:51 PM
Daylight: 11 hrs 33 mins
Moonrise: 10:36 PM
Moon Transit: 2:45 AM
Moonset: 7:52 AM
Moon Phase: Waning Gibbous
Moon Illumination: 79.2%

Best Times for Fishing or Hunting

Major Periods

2:15 AM - 4:45 AM
4:55 PM - 7:25 PM

Minor Periods

10:06 PM - 11:36 PM
7:22 AM - 8:52 AM

Action Rating: 2 out of 5

Sunday, March 8, 2026

Weather Forecast

Cloudy
46.6°F
38.1°F
43.1°F
89%
0 in
0%
0%
11.4 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 13.4 μg/m3
PM10: 13.69 μg/m3
Carbon Monoxide: 189.7 μg/m3
Nitrogen Dioxide: 23.47 μg/m3
Sulphur Dioxide: 6.1 μg/m3
Ozone: 47.08 μg/m3

Astronomical

Sunrise: 6:16 AM
Sun Transit: 12:00 AM
Sunset: 5:52 PM
Daylight: 11 hrs 36 mins
Moonrise: 11:40 PM
Moon Transit: 3:30 AM
Moonset: 8:18 AM
Moon Phase: Waning Gibbous
Moon Illumination: 69.3%

Best Times for Fishing or Hunting

Major Periods

3:00 AM - 5:30 AM
5:42 PM - 8:12 PM

Minor Periods

12:00 AM - 12:00 AM
7:48 AM - 9:18 AM

Action Rating: 3 out of 5

Monday, March 9, 2026

Weather Forecast

Patchy rain nearby
46.5°F
37.5°F
41.4°F
87%
0.01 in
88%
0%
5.6 mph
2


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: 6:15 AM
Sun Transit: 12:00 AM
Sunset: 5:53 PM
Daylight: 11 hrs 38 mins
Moonrise: 12:40 AM
Moon Transit: 4:17 AM
Moonset: 8:50 AM
Moon Phase: Waning Gibbous
Moon Illumination: 58.5%

Best Times for Fishing or Hunting

Major Periods

3:47 AM - 6:17 AM
6:30 PM - 9:00 PM

Minor Periods

8:20 AM - 9:50 AM
12:00 AM - 12:00 AM

Action Rating: 3 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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