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

34°F
Mist
Mist
31.1°F
32.8°F
92%
SW 3.4 mph
5.7 mph
31.2°F
32.7°F
0.05 in
100%
4 mi
1023 mbar
0

Five Day Weather Forecast

Moderate or heavy snow showers
Tue
H: 33°F
L: 25°F
Patchy rain nearby
Wed
H: 47°F
L: 33°F
Heavy rain
Thu
H: 35°F
L: 33°F
Moderate rain
Fri
H: 36°F
L: 35°F
Patchy rain nearby
Sat
H: 39°F
L: 34°F

Air Quality

AQI: 1 - Good
PM2.5: 6.55 μg/m3
PM10: 6.85 μg/m3
Carbon Monoxide: 274.85 μg/m3
Nitrogen Dioxide: 15.45 μg/m3
Sulphur Dioxide: 3.25 μg/m3
Ozone: 51 μg/m3

Astronomical

Sunrise: 6:24 AM
Sun Transit: 12:05 AM
Sunset: 5:46 PM
Daylight: 11 hrs 22 mins
Moonrise: 6:14 PM
Moon Transit: 12:00 AM
Moonset: 6:26 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:02 PM - 4:32 PM

Minor Periods

5:44 PM - 7:14 PM
5:56 AM - 7:26 AM

Action Rating: 5 out of 5

Winter Weather Advisory issued March 3 at 1:07PM EST until March 3 at 10:00PM EST by NWS Upton NY

Effective: Tue March 3, 2026, 1:07 PM
Expires: Tue March 3, 2026, 10:00 PM

* WHAT...Mixed precipitation. Additional snow and sleet accumulations up to one inch and ice accumulations around one tenth of an inch. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...Until 10 PM EST this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Tuesday evening commute. * ADDITIONAL DETAILS...Amounts could exceed a tenth of an inch across the higher elevations and north and west of Interstate 84.

Slow down and use caution while traveling. Check local Department of Transportation information services for the latest road conditions.


Winter Weather Advisory issued March 3 at 6:59PM EST until March 3 at 10:00PM EST by NWS Upton NY

Effective: Tue March 3, 2026, 6:59 PM
Expires: Tue March 3, 2026, 10:00 PM

* WHAT...Freezing rain. Additional ice accumulations around a light glaze. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...Until 10 PM EST this evening. * IMPACTS...Very slippery sidewalks, roads and bridges are possible. The hazardous conditions could impact the Tuesday evening commute. * ADDITIONAL DETAILS...Ice amounts could exceed a tenth of an inch across the higher elevations and north and west of Interstate 84.

Slow down and use caution while traveling. Prepare for possible power outages. Check local Department of Transportation information services for the latest road conditions.


Winter Weather Advisory issued March 3 at 1:07PM EST until March 3 at 7:00PM EST by NWS Upton NY

Effective: Tue March 3, 2026, 1:07 PM
Expires: Tue March 3, 2026, 7:00 PM

* WHAT...Mixed precipitation. Additional snow and sleet accumulations up to one inch and ice accumulations around a light glaze. Highest amounts of ice accretion will be along the border of Orange and Putnam counties, where up to an tenth of an inch is possible. * WHERE...Northern Westchester and Rockland Counties. * WHEN...Until 7 PM EST this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Tuesday evening commute.

Slow down and use caution while traveling. Check local Department of Transportation information services for the latest road conditions.


Winter Weather Advisory issued March 3 at 6:59PM EST until March 3 at 10:00PM EST by NWS Upton NY

Effective: Tue March 3, 2026, 6:59 PM
Expires: Tue March 3, 2026, 10:00 PM

* WHAT...Freezing rain. Additional ice accumulations around a light glaze. * WHERE...Northern Westchester and Rockland Counties. * WHEN...Until 10 PM EST this evening. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. The hazardous conditions could impact the Tuesday evening commute.

Slow down and use caution while traveling. Check local Department of Transportation information services for the latest road conditions.


Winter Weather Advisory issued March 3 at 6:23PM EST until March 4 at 5:00AM EST by NWS Albany NY

Effective: Tue March 3, 2026, 6:23 PM
Expires: Wed March 4, 2026, 5:00 AM

* WHAT...Mixed precipitation. Additional snow accumulations up to one inch and ice accumulations around one tenth of an inch. * WHERE...Northwestern Connecticut, western Massachusetts, Taconics and the Lake George Saratoga region of eastern New York, and southern Vermont. * WHEN...Until 5 AM EST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will continue to impact the Tuesday evening commute. * ADDITIONAL DETAILS...Snow and wintry mix will continue this evening but will start to taper during the overnight hours. All precipitation should be done by the late night hours.

Slow down and use caution while traveling.
Tuesday, March 3, 2026

Weather Forecast

Moderate or heavy snow showers
33.1°F
24.8°F
29.7°F
83%
0.28 in
74%
32%
8.1 mph
0.5


Air Quality

AQI: 2 - Moderate
PM2.5: 16.27 μg/m3
PM10: 19.69 μg/m3
Carbon Monoxide: 236.37 μg/m3
Nitrogen Dioxide: 26.97 μg/m3
Sulphur Dioxide: 3.58 μg/m3
Ozone: 62.24 μg/m3

Astronomical

Sunrise: 6:24 AM
Sun Transit: 12:05 AM
Sunset: 5:46 PM
Daylight: 11 hrs 22 mins
Moonrise: 6:14 PM
Moon Transit: 12:00 AM
Moonset: 6:26 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:02 PM - 4:32 PM

Minor Periods

5:44 PM - 7:14 PM
5:56 AM - 7:26 AM

Action Rating: 5 out of 5

Wednesday, March 4, 2026

Weather Forecast

Patchy rain nearby
46.6°F
32.7°F
35.9°F
96%
0.18 in
75%
18%
9.2 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 9.81 μg/m3
PM10: 11.07 μg/m3
Carbon Monoxide: 352.93 μg/m3
Nitrogen Dioxide: 24.07 μg/m3
Sulphur Dioxide: 3.69 μg/m3
Ozone: 61 μg/m3

Astronomical

Sunrise: 6:23 AM
Sun Transit: 12:04 AM
Sunset: 5:47 PM
Daylight: 11 hrs 25 mins
Moonrise: 7:21 PM
Moon Transit: 12:36 AM
Moonset: 6:47 AM
Moon Phase: Full
Moon Illumination: 98.2%

Best Times for Fishing or Hunting

Major Periods

12:06 AM - 2:36 AM
2:45 PM - 5:15 PM

Minor Periods

6:51 PM - 8:21 PM
6:17 AM - 7:47 AM

Action Rating: 4 out of 5

Thursday, March 5, 2026

Weather Forecast

Heavy rain
35.2°F
32.5°F
33.9°F
98%
1.31 in
89%
10%
11.6 mph
0


Air Quality

AQI: 2 - Moderate
PM2.5: 29.97 μg/m3
PM10: 31.14 μg/m3
Carbon Monoxide: 594.37 μg/m3
Nitrogen Dioxide: 61.61 μg/m3
Sulphur Dioxide: 7.87 μg/m3
Ozone: 20.56 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

Moderate rain
36.3°F
34.5°F
35.4°F
92%
0.61 in
87%
0%
10.5 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 10.58 μg/m3
PM10: 11.23 μg/m3
Carbon Monoxide: 285.96 μg/m3
Nitrogen Dioxide: 26.48 μg/m3
Sulphur Dioxide: 3.05 μg/m3
Ozone: 48.84 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

Patchy rain nearby
38.7°F
33.6°F
36.7°F
98%
0.04 in
89%
0%
7.6 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 6.85 μg/m3
PM10: 7.96 μg/m3
Carbon Monoxide: 223.6 μg/m3
Nitrogen Dioxide: 12.92 μg/m3
Sulphur Dioxide: 2.42 μg/m3
Ozone: 64.92 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

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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