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

54°F
Light rain
Light rain
48.9°F
50.7°F
93%
NW 19 mph
29.9 mph
46.8°F
46.8°F
0 in
100%
1 mi
1001 mbar
0.1

Five Day Weather Forecast

Moderate rain
Thu
H: 54°F
L: 36°F
Partly Cloudy
Fri
H: 36°F
L: 31°F
Sunny
Sat
H: 47°F
L: 35°F
Patchy rain nearby
Sun
H: 42°F
L: 32°F
Heavy rain
Mon
H: 53°F
L: 34°F

Air Quality

AQI: 1 - Good
PM2.5: 2.65 μg/m3
PM10: 2.75 μg/m3
Carbon Monoxide: 198.85 μg/m3
Nitrogen Dioxide: 6.15 μg/m3
Sulphur Dioxide: 2.15 μg/m3
Ozone: 78 μg/m3

Astronomical

Sunrise: 7:10 AM
Sun Transit: 12:00 AM
Sunset: 6:57 PM
Daylight: 11 hrs 47 mins
Moonrise: 3:34 AM
Moon Transit: 7:50 AM
Moonset: 12:08 AM
Moon Phase: Last Quarter
Moon Illumination: 25.6%

Best Times for Fishing or Hunting

Major Periods

7:20 AM - 9:50 AM
12:00 AM - 12:00 AM

Minor Periods

11:38 AM - 1:08 PM
3:04 AM - 4:34 AM

Action Rating: 3 out of 5

Special Weather Statement issued March 12 at 7:31AM EDT by NWS Upton NY

Effective: Thu March 12, 2026, 7:31 AM
Expires: Thu March 12, 2026, 9:00 AM

Locally dense fog will impact southern Connecticut through 9 am. Visibilities will be reduced locally to around one quarter mile or less at times. Extra caution should be used if traveling and utilize your low beam headlights. Visibilities will improve after 9 am as a strong cold front moves across the area.


Flood Warning issued March 12 at 7:22AM EDT until March 14 at 8:21AM EDT by NWS Albany NY

Effective: Thu March 12, 2026, 7:22 AM
Expires: Thu March 12, 2026, 7:30 PM

* WHAT...Minor flooding is forecast. * WHERE...Housatonic River at Stevenson Dam. * WHEN...Until Saturday morning. * IMPACTS...At 11.5 feet, Water reaches the Maples area of Shelton. * ADDITIONAL DETAILS... - At 6:30 AM EDT Thursday the stage was 10.9 feet. - Forecast...The river will rise above flood stage this morning to 11.3 feet this afternoon. It will then fall below flood stage early Saturday morning. - Flood stage is 11.0 feet. - http://www.weather.gov/safety/flood


Flood Warning issued March 12 at 5:22AM EDT until March 14 at 5:00PM EDT by NWS Albany NY

Effective: Thu March 12, 2026, 5:22 AM
Expires: Thu March 12, 2026, 5:30 PM

* WHAT...Minor flooding is forecast. * WHERE...Housatonic River at Gaylordsville. * WHEN...From early this morning to Saturday afternoon. * IMPACTS...At 8.0 feet, Flood stage. Water reaches New Milford Foundry and Young's Field Road. * ADDITIONAL DETAILS... - At 5:00 AM EDT Thursday the stage was 7.9 feet. - Forecast...The river is expected to rise above flood stage early this morning to a crest of 8.5 feet late tonight. It will then fall below flood stage late Saturday morning. - Flood stage is 8.0 feet. - http://www.weather.gov/safety/flood


Flood Warning issued March 12 at 3:36AM EDT until March 14 at 8:00PM EDT by NWS Albany NY

Effective: Thu March 12, 2026, 3:36 AM
Expires: Thu March 12, 2026, 5:00 PM

* WHAT...Minor flooding is forecast. * WHERE...Housatonic River at Falls Village. * WHEN...From this afternoon to Saturday evening. * IMPACTS...At 8.0 feet, The water reaches Riverside Road at Kent School and floods the picnic area along Route 7 near Housatonic Meadows. * ADDITIONAL DETAILS... - At 3:15 AM EDT Thursday the stage was 6.5 feet. - Forecast...The river is expected to rise above flood stage late this afternoon to a crest of 7.7 feet tomorrow morning. It will then fall below flood stage early Saturday afternoon. - Flood stage is 7.0 feet. - http://www.weather.gov/safety/flood


Thursday, March 12, 2026

Weather Forecast

Moderate rain
53.8°F
36°F
44°F
79%
0.24 in
87%
0%
19 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 7.23 μg/m3
PM10: 7.43 μg/m3
Carbon Monoxide: 176.97 μg/m3
Nitrogen Dioxide: 12.59 μg/m3
Sulphur Dioxide: 3.53 μg/m3
Ozone: 69.36 μg/m3

Astronomical

Sunrise: 7:10 AM
Sun Transit: 12:00 AM
Sunset: 6:57 PM
Daylight: 11 hrs 47 mins
Moonrise: 3:34 AM
Moon Transit: 7:50 AM
Moonset: 12:08 AM
Moon Phase: Last Quarter
Moon Illumination: 25.6%

Best Times for Fishing or Hunting

Major Periods

7:20 AM - 9:50 AM
12:00 AM - 12:00 AM

Minor Periods

11:38 AM - 1:08 PM
3:04 AM - 4:34 AM

Action Rating: 3 out of 5

Friday, March 13, 2026

Weather Forecast

Partly Cloudy
36.3°F
30.6°F
34.3°F
65%
0 in
0%
0%
21.7 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 6.29 μg/m3
PM10: 7.75 μg/m3
Carbon Monoxide: 194.61 μg/m3
Nitrogen Dioxide: 9.16 μg/m3
Sulphur Dioxide: 3.06 μg/m3
Ozone: 80.44 μg/m3

Astronomical

Sunrise: 7:08 AM
Sun Transit: 12:00 AM
Sunset: 6:58 PM
Daylight: 11 hrs 50 mins
Moonrise: 4:19 AM
Moon Transit: 8:41 AM
Moonset: 1:08 PM
Moon Phase: Waning Crescent
Moon Illumination: 16.4%

Best Times for Fishing or Hunting

Major Periods

8:11 AM - 10:41 AM
12:00 AM - 12:00 AM

Minor Periods

12:38 AM - 2:08 PM
3:49 AM - 5:19 AM

Action Rating: 2 out of 5

Saturday, March 14, 2026

Weather Forecast

Sunny
46.8°F
35.2°F
40°F
66%
0 in
0%
0%
20.6 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 5.45 μg/m3
PM10: 6.64 μg/m3
Carbon Monoxide: 183.77 μg/m3
Nitrogen Dioxide: 7.79 μg/m3
Sulphur Dioxide: 3.14 μg/m3
Ozone: 88.16 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 12:00 AM
Sunset: 6:59 PM
Daylight: 11 hrs 53 mins
Moonrise: 4:57 AM
Moon Transit: 9:32 AM
Moonset: 2:15 PM
Moon Phase: Waning Crescent
Moon Illumination: 8.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:02 AM - 11:32 AM

Minor Periods

1:45 PM - 3:15 PM
4:27 AM - 5:57 AM

Action Rating: 2 out of 5

Sunday, March 15, 2026

Weather Forecast

Patchy rain nearby
41.6°F
32.2°F
36.7°F
63%
0.05 in
88%
10%
17.9 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 8.35 μg/m3
PM10: 9.85 μg/m3
Carbon Monoxide: 191.69 μg/m3
Nitrogen Dioxide: 13.27 μg/m3
Sulphur Dioxide: 2.84 μg/m3
Ozone: 74.76 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 12:00 AM
Sunset: 7:00 PM
Daylight: 11 hrs 55 mins
Moonrise: 5:28 AM
Moon Transit: 10:21 AM
Moonset: 3:23 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:51 AM - 12:21 AM

Minor Periods

2:53 PM - 4:23 PM
4:58 AM - 6:28 AM

Action Rating: 2 out of 5

Monday, March 16, 2026

Weather Forecast

Heavy rain
52.7°F
33.6°F
47.1°F
89%
0.9 in
72%
0%
25.9 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 9.97 μg/m3
PM10: 14.17 μg/m3
Carbon Monoxide: 167.47 μg/m3
Nitrogen Dioxide: 4.51 μg/m3
Sulphur Dioxide: 1.67 μg/m3
Ozone: 97.54 μg/m3

Astronomical

Sunrise: 7:03 AM
Sun Transit: 12:00 AM
Sunset: 7:01 PM
Daylight: 11 hrs 58 mins
Moonrise: 5:55 AM
Moon Transit: 11:09 AM
Moonset: 4:33 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.6%

Best Times for Fishing or Hunting

Major Periods

12:33 AM - 3:03 AM
10:39 AM - 1:09 PM

Minor Periods

4:03 PM - 5:33 PM
5:25 AM - 6:55 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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