Water Temperature of the Connecticut River in Old Lyme, CT

Current Water Temperature

31.8°F

Measurement Time: Wednesday, February 4, 2026, 1:45 AM EST

Temperature Locations

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Local Points of Interest

Ferry Landing State Park

Connecticut River

Station Name: CONNECTICUT RIVER AT OLD LYME, CT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 20 feet

Nearest Address:
336 Ferry Rd
Old Lyme, CT 06371
New London County

GPS Coordinates: 41.3125983, -72.3459166

Nearby Water Temperatures

East Branch Eightmile River, Lyme, CT (8 mi)
Eightmile River, East Haddam, CT (8.9 mi)
Orient Harbor, Orient, NY (12.3 mi)
Thames River, New London, CT (13.6 mi)
Thames River, Groton, CT (13.9 mi)
Mystic River, Noank, CT (18.8 mi)
Connecticut River, Middletown, CT (19.1 mi)
Mystic Harbor, Mystic, CT (19.7 mi)
Mystic River, Mystic, CT (19.9 mi)
Mystic River, Old Mystic, CT (20.4 mi)
Yantic River, Norwich, CT (20.6 mi)
Pawcatuck River, Westerly, RI (27 mi)
Fort Pond Bay, Montauk, NY (27.2 mi)
Quinnipiac River, Wallingford, CT (27.4 mi)
New Haven Harbor, New Haven, CT (29.3 mi)

Weather for Old Lyme, Connecticut

Current Weather

27.1°F
Overcast
Overcast
19.2°F
9.6°F
58%
NW 7.6 mph
16 mph
1.7°F
-5.2°F
0 in
100%
9 mi
1020 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 34°F
L: 8°F
Partly Cloudy
Thu
H: 30°F
L: 13°F
Moderate snow
Fri
H: 26°F
L: 14°F
Moderate or heavy snow showers
Sat
H: 15°F
L: 2°F
Sunny
Sun
H: 13°F
L: -0°F

Air Quality

AQI: 1 - Good
PM2.5: 6.05 μg/m3
PM10: 6.05 μg/m3
Carbon Monoxide: 211.85 μg/m3
Nitrogen Dioxide: 6.35 μg/m3
Sulphur Dioxide: 2.15 μg/m3
Ozone: 70 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 12:03 AM
Sunset: 5:10 PM
Daylight: 10 hrs 12 mins
Moonrise: 8:30 PM
Moon Transit: 1:57 AM
Moonset: 8:21 AM
Moon Phase: Full
Moon Illumination: 90.9%

Best Times for Fishing or Hunting

Major Periods

1:27 AM - 3:57 AM
4:14 PM - 6:44 PM

Minor Periods

8:00 PM - 9:30 PM
7:51 AM - 9:21 AM

Action Rating: 3 out of 5

Special Weather Statement issued February 3 at 5:33PM EST by NWS Upton NY

Effective: Tue February 3, 2026, 5:33 PM
Expires: Wed February 4, 2026, 7:00 AM

Patchy black ice is possible through tonight. Water on sidewalks and roads has been observed in some areas from afternoon snowmelt. This could cause slick conditions on untreated surfaces as water refreezes this evening. Use caution.


Wednesday, February 4, 2026

Weather Forecast

Sunny
34.3°F
8.1°F
21.7°F
58%
0 in
0%
0%
13.2 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 13.42 μg/m3
PM10: 13.54 μg/m3
Carbon Monoxide: 320.81 μg/m3
Nitrogen Dioxide: 24.92 μg/m3
Sulphur Dioxide: 4.46 μg/m3
Ozone: 50.56 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 12:03 AM
Sunset: 5:10 PM
Daylight: 10 hrs 12 mins
Moonrise: 8:30 PM
Moon Transit: 1:57 AM
Moonset: 8:21 AM
Moon Phase: Full
Moon Illumination: 90.9%

Best Times for Fishing or Hunting

Major Periods

1:27 AM - 3:57 AM
4:14 PM - 6:44 PM

Minor Periods

8:00 PM - 9:30 PM
7:51 AM - 9:21 AM

Action Rating: 3 out of 5

Thursday, February 5, 2026

Weather Forecast

Partly Cloudy
29.5°F
12.9°F
23°F
69%
0 in
0%
0%
12.3 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 6.17 μg/m3
PM10: 6.23 μg/m3
Carbon Monoxide: 244.57 μg/m3
Nitrogen Dioxide: 9.64 μg/m3
Sulphur Dioxide: 2.44 μg/m3
Ozone: 67.96 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 12:03 AM
Sunset: 5:11 PM
Daylight: 10 hrs 14 mins
Moonrise: 9:35 PM
Moon Transit: 2:40 AM
Moonset: 8:41 AM
Moon Phase: Waning Gibbous
Moon Illumination: 83.4%

Best Times for Fishing or Hunting

Major Periods

2:10 AM - 4:40 AM
4:57 PM - 7:27 PM

Minor Periods

9:05 PM - 10:35 PM
8:11 AM - 9:41 AM

Action Rating: 3 out of 5

Friday, February 6, 2026

Weather Forecast

Moderate snow
26.1°F
13.5°F
20.8°F
71%
0.06 in
86%
5%
11.6 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 8.49 μg/m3
PM10: 9.15 μg/m3
Carbon Monoxide: 243.57 μg/m3
Nitrogen Dioxide: 14.17 μg/m3
Sulphur Dioxide: 2.55 μg/m3
Ozone: 67.8 μg/m3

Astronomical

Sunrise: 6:55 AM
Sun Transit: 12:03 AM
Sunset: 5:12 PM
Daylight: 10 hrs 17 mins
Moonrise: 10:40 PM
Moon Transit: 3:23 AM
Moonset: 9:01 AM
Moon Phase: Waning Gibbous
Moon Illumination: 74.1%

Best Times for Fishing or Hunting

Major Periods

2:53 AM - 5:23 AM
5:39 PM - 8:09 PM

Minor Periods

10:10 PM - 11:40 PM
8:31 AM - 10:01 AM

Action Rating: 3 out of 5

Saturday, February 7, 2026

Weather Forecast

Moderate or heavy snow showers
15.2°F
2.2°F
11.1°F
83%
0.1 in
62%
20%
29.3 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 7.57 μg/m3
PM10: 8.36 μg/m3
Carbon Monoxide: 241.95 μg/m3
Nitrogen Dioxide: 10.81 μg/m3
Sulphur Dioxide: 2.81 μg/m3
Ozone: 69.2 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 12:03 AM
Sunset: 5:13 PM
Daylight: 10 hrs 19 mins
Moonrise: 11:44 PM
Moon Transit: 4:05 AM
Moonset: 9:22 AM
Moon Phase: Waning Gibbous
Moon Illumination: 63.7%

Best Times for Fishing or Hunting

Major Periods

3:35 AM - 6:05 AM
6:22 PM - 8:52 PM

Minor Periods

12:00 AM - 12:00 AM
8:52 AM - 10:22 AM

Action Rating: 2 out of 5

Sunday, February 8, 2026

Weather Forecast

Sunny
12.9°F
-0.2°F
4.9°F
78%
0 in
0%
0%
23 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.63 μg/m3
PM10: 2.7 μg/m3
Carbon Monoxide: 178.7 μg/m3
Nitrogen Dioxide: 4.43 μg/m3
Sulphur Dioxide: 1.62 μg/m3
Ozone: 69.38 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 12:03 AM
Sunset: 5:14 PM
Daylight: 10 hrs 21 mins
Moonrise: 12:44 AM
Moon Transit: 4:49 AM
Moonset: 9:46 AM
Moon Phase: Last Quarter
Moon Illumination: 52.5%

Best Times for Fishing or Hunting

Major Periods

4:19 AM - 6:49 AM
7:07 PM - 9:37 PM

Minor Periods

9:16 AM - 10:46 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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