Water Temperature of the Connecticut River in Old Lyme, CT

Current Water Temperature

75.6°F

Measurement Time: Tuesday, June 16, 2026, 4:45 AM EDT

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

64.9°F
Sunny
Sunny
64.9°F
65°F
58%
NW 7.8 mph
9.2 mph
65°F
46.7°F
0 in
0%
9 mi
1011 mbar
3

Five Day Weather Forecast

Sunny
Tue
H: 79°F
L: 57°F
Patchy rain nearby
Wed
H: 71°F
L: 60°F
Patchy rain nearby
Thu
H: 80°F
L: 64°F
Partly Cloudy
Fri
H: 78°F
L: 67°F
Sunny
Sat
H: 75°F
L: 58°F

Air Quality

AQI: 1 - Good
PM2.5: 2.6 μg/m3
PM10: 2.6 μg/m3
Carbon Monoxide: 117 μg/m3
Nitrogen Dioxide: 2.6 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 60 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:50 AM
Sunset: 8:25 PM
Daylight: 15 hrs 10 mins
Moonrise: 6:31 AM
Moon Transit: 2:33 PM
Moonset: 10:27 PM
Moon Phase: New
Moon Illumination: 1.0%

Best Times for Fishing or Hunting

Major Periods

3:59 AM - 6:29 AM
2:03 PM - 4:33 PM

Minor Periods

9:57 PM - 11:27 PM
6:01 AM - 7:31 AM

Action Rating: 3 out of 5

Tuesday, June 16, 2026

Weather Forecast

Sunny
79.2°F
56.8°F
66°F
55%
0 in
3%
0%
13.9 mph
8.3


Air Quality

AQI: 1 - Good
PM2.5: 5.69 μg/m3
PM10: 7.03 μg/m3
Carbon Monoxide: 118.88 μg/m3
Nitrogen Dioxide: 3.47 μg/m3
Sulphur Dioxide: 0.62 μg/m3
Ozone: 79.96 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:50 AM
Sunset: 8:25 PM
Daylight: 15 hrs 10 mins
Moonrise: 6:31 AM
Moon Transit: 2:33 PM
Moonset: 10:27 PM
Moon Phase: New
Moon Illumination: 1.0%

Best Times for Fishing or Hunting

Major Periods

3:59 AM - 6:29 AM
2:03 PM - 4:33 PM

Minor Periods

9:57 PM - 11:27 PM
6:01 AM - 7:31 AM

Action Rating: 3 out of 5

Wednesday, June 17, 2026

Weather Forecast

Patchy rain nearby
70.7°F
60.3°F
65.1°F
77%
0.02 in
40%
0%
9.6 mph
3.4


Air Quality

AQI: 1 - Good
PM2.5: 10.08 μg/m3
PM10: 14.14 μg/m3
Carbon Monoxide: 123.04 μg/m3
Nitrogen Dioxide: 5.43 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 86.67 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 12:50 AM
Sunset: 8:25 PM
Daylight: 15 hrs 10 mins
Moonrise: 7:50 AM
Moon Transit: 3:34 PM
Moonset: 11:05 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.6%

Best Times for Fishing or Hunting

Major Periods

5:02 AM - 7:32 AM
3:04 PM - 5:34 PM

Minor Periods

12:00 AM - 12:00 AM
7:20 AM - 8:50 AM

Action Rating: 3 out of 5

Thursday, June 18, 2026

Weather Forecast

Patchy rain nearby
80.1°F
63.5°F
71.7°F
81%
0.11 in
68%
0%
18.6 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 11.78 μg/m3
PM10: 16.87 μg/m3
Carbon Monoxide: 121.29 μg/m3
Nitrogen Dioxide: 3.27 μg/m3
Sulphur Dioxide: 0.49 μg/m3
Ozone: 106.63 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 12:50 AM
Sunset: 8:26 PM
Daylight: 15 hrs 10 mins
Moonrise: 9:10 AM
Moon Transit: 4:29 PM
Moonset: 12:05 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.4%

Best Times for Fishing or Hunting

Major Periods

5:59 AM - 8:29 AM
3:59 PM - 6:29 PM

Minor Periods

8:40 AM - 10:10 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Friday, June 19, 2026

Weather Forecast

Partly Cloudy
77.8°F
66.5°F
71.9°F
62%
0 in
6%
0%
13.9 mph
7.4


Air Quality

AQI: 1 - Good
PM2.5: 3.13 μg/m3
PM10: 3.57 μg/m3
Carbon Monoxide: 127.16 μg/m3
Nitrogen Dioxide: 3.22 μg/m3
Sulphur Dioxide: 0.46 μg/m3
Ozone: 91.04 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 12:50 AM
Sunset: 8:26 PM
Daylight: 15 hrs 10 mins
Moonrise: 10:25 AM
Moon Transit: 5:19 PM
Moonset: 12:36 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.3%

Best Times for Fishing or Hunting

Major Periods

6:51 AM - 9:21 AM
4:49 PM - 7:19 PM

Minor Periods

9:55 AM - 11:25 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, June 20, 2026

Weather Forecast

Sunny
74.5°F
57.6°F
64.8°F
61%
0 in
4%
0%
16.3 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 2.23 μg/m3
PM10: 2.31 μg/m3
Carbon Monoxide: 143.67 μg/m3
Nitrogen Dioxide: 3.91 μg/m3
Sulphur Dioxide: 0.51 μg/m3
Ozone: 65.33 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 12:51 AM
Sunset: 8:26 PM
Daylight: 15 hrs 10 mins
Moonrise: 11:35 AM
Moon Transit: 6:05 PM
Moonset: 12:01 AM
Moon Phase: Waxing Crescent
Moon Illumination: 27.8%

Best Times for Fishing or Hunting

Major Periods

7:38 AM - 10:08 AM
5:35 PM - 8:05 PM

Minor Periods

11:05 AM - 12:35 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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