Water Temperature of the Connecticut River in Old Lyme, CT

Current Water Temperature

49.3°F

Measurement Time: Sunday, April 12, 2026, 8:45 PM EDT

Temperature Locations

View Nearby Locations     View All Connecticut Locations     View Locations Near Me

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

45°F
Partly cloudy
Partly cloudy
40°F
42.8°F
90%
S 9.4 mph
15.9 mph
40°F
40.6°F
0 in
75%
9 mi
1027 mbar
0

Five Day Weather Forecast

Overcast
Mon
H: 61°F
L: 42°F
Overcast
Tue
H: 72°F
L: 53°F
Partly Cloudy
Wed
H: 75°F
L: 50°F
Patchy rain nearby
Thu
H: 65°F
L: 56°F
Partly Cloudy
Fri
H: 68°F
L: 55°F

Air Quality

PM2.5: 9.25 μg/m3
PM10: 12.95 μg/m3
Carbon Monoxide: 157.85 μg/m3
Nitrogen Dioxide: 2.15 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 104 μg/m3

Astronomical

Sunrise: 6:13 AM
Sun Transit: 12:49 AM
Sunset: 7:27 PM
Daylight: 13 hrs 14 mins
Moonrise: 4:16 AM
Moon Transit: 9:41 AM
Moonset: 3:16 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:11 AM - 11:41 AM

Minor Periods

2:46 PM - 4:16 PM
3:46 AM - 5:16 AM

Action Rating: 2 out of 5

Monday, April 13, 2026

Weather Forecast

Overcast
60.8°F
42.1°F
52.1°F
90%
0 in
0%
0%
16.1 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 10.88 μg/m3
PM10: 14.17 μg/m3
Carbon Monoxide: 169.57 μg/m3
Nitrogen Dioxide: 6.49 μg/m3
Sulphur Dioxide: 2.09 μg/m3
Ozone: 104.52 μg/m3

Astronomical

Sunrise: 6:13 AM
Sun Transit: 12:49 AM
Sunset: 7:27 PM
Daylight: 13 hrs 14 mins
Moonrise: 4:16 AM
Moon Transit: 9:41 AM
Moonset: 3:16 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:11 AM - 11:41 AM

Minor Periods

2:46 PM - 4:16 PM
3:46 AM - 5:16 AM

Action Rating: 2 out of 5

Tuesday, April 14, 2026

Weather Forecast

Overcast
72°F
53.1°F
59.4°F
90%
0 in
0%
0%
11.6 mph
1.8


Air Quality

AQI: 1 - Good
PM2.5: 15.43 μg/m3
PM10: 16.45 μg/m3
Carbon Monoxide: 188.09 μg/m3
Nitrogen Dioxide: 17.09 μg/m3
Sulphur Dioxide: 5.63 μg/m3
Ozone: 83.08 μg/m3

Astronomical

Sunrise: 6:11 AM
Sun Transit: 12:49 AM
Sunset: 7:28 PM
Daylight: 13 hrs 17 mins
Moonrise: 4:39 AM
Moon Transit: 10:26 AM
Moonset: 4:27 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:56 AM - 12:26 AM

Minor Periods

3:57 PM - 5:27 PM
4:09 AM - 5:39 AM

Action Rating: 2 out of 5

Wednesday, April 15, 2026

Weather Forecast

Partly Cloudy
75.4°F
50.2°F
60.8°F
83%
0 in
0%
0%
12.8 mph
1.6


Air Quality

AQI: 2 - Moderate
PM2.5: 20.8 μg/m3
PM10: 22.17 μg/m3
Carbon Monoxide: 195.9 μg/m3
Nitrogen Dioxide: 22.31 μg/m3
Sulphur Dioxide: 4.84 μg/m3
Ozone: 76.24 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 12:49 AM
Sunset: 7:29 PM
Daylight: 13 hrs 20 mins
Moonrise: 5:01 AM
Moon Transit: 11:13 AM
Moonset: 5:39 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

11:03 AM - 1:33 PM
10:43 AM - 1:13 PM

Minor Periods

5:09 PM - 6:39 PM
4:31 AM - 6:01 AM

Action Rating: 3 out of 5

Thursday, April 16, 2026

Weather Forecast

Patchy rain nearby
65.3°F
55.6°F
59.9°F
85%
0.01 in
88%
0%
10.7 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 13.65 μg/m3
PM10: 15.9 μg/m3
Carbon Monoxide: 236.29 μg/m3
Nitrogen Dioxide: 10.95 μg/m3
Sulphur Dioxide: 2.56 μg/m3
Ozone: 86.08 μg/m3

Astronomical

Sunrise: 6:08 AM
Sun Transit: 12:49 AM
Sunset: 7:31 PM
Daylight: 13 hrs 22 mins
Moonrise: 5:24 AM
Moon Transit: 12:02 AM
Moonset: 6:54 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

1:33 AM - 4:03 AM
11:32 AM - 2:02 PM

Minor Periods

6:24 PM - 7:54 PM
4:54 AM - 6:24 AM

Action Rating: 5 out of 5

Friday, April 17, 2026

Weather Forecast

Partly Cloudy
67.9°F
55.1°F
61.2°F
75%
0 in
0%
0%
8.9 mph
0.1


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 12:48 AM
Sunset: 7:32 PM
Daylight: 13 hrs 25 mins
Moonrise: 5:50 AM
Moon Transit: 12:54 AM
Moonset: 8:13 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

2:23 AM - 4:53 AM
12:24 AM - 2:54 PM

Minor Periods

7:43 PM - 9:13 PM
5:20 AM - 6:50 AM

Action Rating: 4 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.

Webcams Near Old Lyme, CT

Sponsored Content