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

35.1°F
Sunny
Sunny
25.3°F
41.3°F
40%
W 15.4 mph
18.4 mph
32.9°F
9.2°F
0 in
0%
9 mi
1018 mbar
0.8

Five Day Weather Forecast

Sunny
Fri
H: 42°F
L: 15°F
Partly Cloudy
Sat
H: 18°F
L: 10°F
Moderate or heavy snow showers
Sun
H: 19°F
L: 15°F
Moderate or heavy snow showers
Mon
H: 29°F
L: 16°F
Partly Cloudy
Tue
H: 22°F
L: 10°F

Air Quality

AQI: 1 - Good
PM2.5: 3.65 μg/m3
PM10: 3.75 μg/m3
Carbon Monoxide: 165.85 μg/m3
Nitrogen Dioxide: 7.05 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 71 μg/m3

Astronomical

Sunrise: 7:11 AM
Sun Transit: 12:05 AM
Sunset: 4:59 PM
Daylight: 9 hrs 47 mins
Moonrise: 9:34 AM
Moon Transit: 9:54 AM
Moonset: 10:23 PM
Moon Phase: Waxing Crescent
Moon Illumination: 24.4%

Best Times for Fishing or Hunting

Major Periods

9:24 AM - 11:54 AM
9:24 AM - 11:54 AM

Minor Periods

9:53 PM - 11:23 PM
9:04 AM - 10:34 AM

Action Rating: 2 out of 5

Cold Weather Advisory issued January 23 at 2:01AM EST until January 24 at 10:00AM EST by NWS Upton NY

Effective: Fri January 23, 2026, 2:01 AM
Expires: Fri January 23, 2026, 5:00 PM

* WHAT...Very cold wind chills as low as 10 below expected. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...From 10 PM this evening to 10 AM EST Saturday. * IMPACTS...The cold wind chills could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.


Winter Storm Watch issued January 23 at 1:57AM EST until January 26 at 6:00PM EST by NWS Upton NY

Effective: Fri January 23, 2026, 1:57 AM
Expires: Fri January 23, 2026, 5:00 PM

* WHAT...Heavy snow. Total snow accumulations between 8 and 14 inches, with locally higher amounts possible. The snow may mix with or change to sleet along the coast Sunday evening, limiting accumulations to the lower end of the range. Highest totals are expected across the interior. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...From late Saturday night through Monday afternoon. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Visibilities may drop below 1/4 mile due to falling and blowing snow. * ADDITIONAL DETAILS...The heaviest snow is likely to occur Sunday morning into early Sunday evening.

Persons should consider delaying travel from Sunday into Monday. If travel is absolutely necessary, drive with extreme caution. Make sure your car is winterized and in good working order. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded.


Winter Storm Warning issued January 23 at 1:12PM EST until January 26 at 6:00PM EST by NWS Upton NY

Effective: Fri January 23, 2026, 1:12 PM
Expires: Sat January 24, 2026, 5:00 AM

* WHAT...Heavy snow expected. Total snow accumulations between 12 and 16 inches. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...From 3 AM Sunday to 6 PM EST Monday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Visibilities may drop below 1/4 mile due to falling and blowing snow.

Persons should consider delaying travel from Sunday into Monday. If travel is absolutely necessary, drive with extreme caution. Make sure your car is winterized and in good working order. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded.


Cold Weather Advisory issued January 23 at 1:05PM EST until January 24 at 12:00PM EST by NWS Upton NY

Effective: Fri January 23, 2026, 1:05 PM
Expires: Sat January 24, 2026, 4:15 AM

* WHAT...Very cold wind chills as low as 14 below expected. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...From 10 PM this evening to noon EST Saturday. * IMPACTS...The cold wind chills could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.


Winter Storm Warning issued January 23 at 1:12PM EST until January 26 at 6:00PM EST by NWS Upton NY

Effective: Fri January 23, 2026, 1:12 PM
Expires: Sat January 24, 2026, 5:00 AM

* WHAT...Heavy snow expected. Total snow accumulations between 10 and 14 inches. A changeover to a wintry mix is possible Sunday evening and could lead to additional sleet accumulation and a glaze of ice before a change back over to light snow later Sunday night. Isolated wind gusts of 35 to 40 mph are possible for eastern long Island. * WHERE...Portions of northeast New Jersey and southeast New York. * WHEN...From 3 AM Sunday to 6 PM EST Monday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Visibilities may drop below 1/4 mile due to falling and blowing snow.

Persons should consider delaying travel from Sunday into Monday. If travel is absolutely necessary, drive with extreme caution. Make sure your car is winterized and in good working order. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded.


Cold Weather Advisory issued January 23 at 2:01AM EST until January 24 at 10:00AM EST by NWS Upton NY

Effective: Fri January 23, 2026, 2:01 AM
Expires: Fri January 23, 2026, 5:00 PM

* WHAT...Very cold wind chills as low as 10 below expected. * WHERE...Portions of northeast New Jersey and southeast New York. * WHEN...From 10 PM this evening to 10 AM EST Saturday. * IMPACTS...The cold wind chills could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.


Cold Weather Advisory issued January 23 at 1:05PM EST until January 24 at 12:00PM EST by NWS Upton NY

Effective: Fri January 23, 2026, 1:05 PM
Expires: Sat January 24, 2026, 4:15 AM

* WHAT...Very cold wind chills as low as 10 below expected. * WHERE...Portions of northeast New Jersey and southeast New York. * WHEN...From 10 PM this evening to noon EST Saturday. * IMPACTS...The cold wind chills could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.


Friday, January 23, 2026

Weather Forecast

Sunny
41.9°F
14.5°F
32.8°F
33%
0 in
0%
0%
19.7 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 6.07 μg/m3
PM10: 6.38 μg/m3
Carbon Monoxide: 195.33 μg/m3
Nitrogen Dioxide: 11.43 μg/m3
Sulphur Dioxide: 4.39 μg/m3
Ozone: 67.8 μg/m3

Astronomical

Sunrise: 7:11 AM
Sun Transit: 12:05 AM
Sunset: 4:59 PM
Daylight: 9 hrs 47 mins
Moonrise: 9:34 AM
Moon Transit: 9:54 AM
Moonset: 10:23 PM
Moon Phase: Waxing Crescent
Moon Illumination: 24.4%

Best Times for Fishing or Hunting

Major Periods

9:24 AM - 11:54 AM
9:24 AM - 11:54 AM

Minor Periods

9:53 PM - 11:23 PM
9:04 AM - 10:34 AM

Action Rating: 2 out of 5

Saturday, January 24, 2026

Weather Forecast

Partly Cloudy
18.1°F
9.7°F
14°F
49%
0 in
0%
0%
16.3 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 3.55 μg/m3
PM10: 3.75 μg/m3
Carbon Monoxide: 173.37 μg/m3
Nitrogen Dioxide: 6.3 μg/m3
Sulphur Dioxide: 1.76 μg/m3
Ozone: 66.16 μg/m3

Astronomical

Sunrise: 7:11 AM
Sun Transit: 12:05 AM
Sunset: 5:00 PM
Daylight: 9 hrs 49 mins
Moonrise: 9:57 AM
Moon Transit: 4:38 PM
Moonset: 11:33 PM
Moon Phase: First Quarter
Moon Illumination: 34.7%

Best Times for Fishing or Hunting

Major Periods

6:03 AM - 8:33 AM
4:08 PM - 6:38 PM

Minor Periods

12:00 AM - 12:00 AM
9:27 AM - 10:57 AM

Action Rating: 2 out of 5

Sunday, January 25, 2026

Weather Forecast

Moderate or heavy snow showers
19°F
14.7°F
16.8°F
71%
2.62 in
74%
36%
19.7 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 5.58 μg/m3
PM10: 5.82 μg/m3
Carbon Monoxide: 190.93 μg/m3
Nitrogen Dioxide: 13.24 μg/m3
Sulphur Dioxide: 2.35 μg/m3
Ozone: 62.96 μg/m3

Astronomical

Sunrise: 7:10 AM
Sun Transit: 12:05 AM
Sunset: 5:01 PM
Daylight: 9 hrs 51 mins
Moonrise: 10:22 AM
Moon Transit: 5:27 PM
Moonset: 12:33 AM
Moon Phase: First Quarter
Moon Illumination: 45.8%

Best Times for Fishing or Hunting

Major Periods

6:50 AM - 9:20 AM
4:57 PM - 7:27 PM

Minor Periods

9:52 AM - 11:22 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Monday, January 26, 2026

Weather Forecast

Moderate or heavy snow showers
29.3°F
15.8°F
25.2°F
87%
0.83 in
84%
27%
21.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 5.15 μg/m3
PM10: 5.78 μg/m3
Carbon Monoxide: 187.88 μg/m3
Nitrogen Dioxide: 12.23 μg/m3
Sulphur Dioxide: 2.24 μg/m3
Ozone: 63.56 μg/m3

Astronomical

Sunrise: 7:09 AM
Sun Transit: 12:05 AM
Sunset: 5:03 PM
Daylight: 9 hrs 53 mins
Moonrise: 10:51 AM
Moon Transit: 6:20 PM
Moonset: 12:48 AM
Moon Phase: First Quarter
Moon Illumination: 57.1%

Best Times for Fishing or Hunting

Major Periods

7:42 AM - 10:12 AM
5:50 PM - 8:20 PM

Minor Periods

10:21 AM - 11:51 AM
12:18 AM - 1:48 AM

Action Rating: 2 out of 5

Tuesday, January 27, 2026

Weather Forecast

Partly Cloudy
22.2°F
9.7°F
16.4°F
82%
0 in
0%
0%
15 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 5 μg/m3
PM10: 5.47 μg/m3
Carbon Monoxide: 199.59 μg/m3
Nitrogen Dioxide: 9.07 μg/m3
Sulphur Dioxide: 2 μg/m3
Ozone: 64.38 μg/m3

Astronomical

Sunrise: 7:08 AM
Sun Transit: 12:05 AM
Sunset: 5:04 PM
Daylight: 9 hrs 55 mins
Moonrise: 11:27 AM
Moon Transit: 7:19 PM
Moonset: 2:05 AM
Moon Phase: First Quarter
Moon Illumination: 68.0%

Best Times for Fishing or Hunting

Major Periods

8:38 AM - 11:08 AM
6:49 PM - 9:19 PM

Minor Periods

10:57 AM - 12:27 AM
1:35 AM - 3:05 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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