Water Temperature of the East Branch Eightmile River in Lyme, CT

Current Water Temperature

68.9°F

Measurement Time: Monday, July 13, 2026, 5:45 AM EDT

Temperature Locations

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East Branch Eightmile River

Station Name: EAST BRANCH EIGHTMILE RIVER NEAR NORTH LYME, CT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 85 feet

Nearest Address:
590 Hamburg Rd
Lyme, CT 06371
New London County

GPS Coordinates: 41.42751667, -72.33477778

Nearby Water Temperatures

Eightmile River, East Haddam, CT (1 mi)
Connecticut River, Old Lyme, CT (8 mi)
Thames River, New London, CT (13 mi)
Connecticut River, Middletown, CT (13.8 mi)
Thames River, Groton, CT (14.2 mi)
Yantic River, Norwich, CT (14.3 mi)
Mystic River, Noank, CT (19.4 mi)
Mystic River, Old Mystic, CT (19.6 mi)
Mystic River, Mystic, CT (19.6 mi)
Mystic Harbor, Mystic, CT (19.8 mi)
Orient Harbor, Orient, NY (20.1 mi)
Pawcatuck River, Westerly, RI (26.2 mi)
Quinnipiac River, Wallingford, CT (26.3 mi)
Natchaug River, Chaplin, CT (29.3 mi)
North Branch Park River, Hartford, CT (31.3 mi)

Weather for Lyme, Connecticut

Current Weather

79°F
Sunny
Sunny
81.8°F
78.1°F
61%
SW 6.5 mph
7.5 mph
75.2°F
63°F
0 in
0%
9 mi
1024 mbar
4.4

Five Day Weather Forecast

Sunny
Mon
H: 86°F
L: 62°F
Sunny
Tue
H: 93°F
L: 66°F
Sunny
Wed
H: 97°F
L: 71°F
Sunny
Thu
H: 88°F
L: 63°F
Sunny
Fri
H: 81°F
L: 57°F

Air Quality

AQI: 1 - Good
PM2.5: 13.8 μg/m3
PM10: 17 μg/m3
Carbon Monoxide: 147 μg/m3
Nitrogen Dioxide: 5.1 μg/m3
Sulphur Dioxide: 1.4 μg/m3
Ozone: 100 μg/m3

Astronomical

Sunrise: 5:27 AM
Sun Transit: 12:55 AM
Sunset: 8:23 PM
Daylight: 14 hrs 56 mins
Moonrise: 4:02 AM
Moon Transit: 12:12 AM
Moonset: 8:15 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

1:36 AM - 4:06 AM
11:42 AM - 2:12 PM

Minor Periods

7:45 PM - 9:15 PM
3:32 AM - 5:02 AM

Action Rating: 4 out of 5

Heat Advisory issued July 13 at 2:37AM EDT until July 15 at 8:00PM EDT by NWS Boston/Norton MA

Effective: Mon July 13, 2026, 2:37 AM
Expires: Mon July 13, 2026, 6:00 PM

* WHAT...Heat index values up to 103 expected. * WHERE...Portions of northern Connecticut, central, eastern, northeastern, southeastern, and western Massachusetts, and northern and southern Rhode Island. * WHEN...From 11 AM Tuesday to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Temperatures Tuesday night likely remain near 80 for most of southern New England, leading to poor overnight relief.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Monday, July 13, 2026

Weather Forecast

Sunny
85.5°F
61.9°F
72.4°F
72%
0 in
6%
0%
11.4 mph
8.5


Air Quality

AQI: 1 - Good
PM2.5: 9.41 μg/m3
PM10: 12.23 μg/m3
Carbon Monoxide: 143.67 μg/m3
Nitrogen Dioxide: 4.97 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 90.83 μg/m3

Astronomical

Sunrise: 5:27 AM
Sun Transit: 12:55 AM
Sunset: 8:23 PM
Daylight: 14 hrs 56 mins
Moonrise: 4:02 AM
Moon Transit: 12:12 AM
Moonset: 8:15 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

1:36 AM - 4:06 AM
11:42 AM - 2:12 PM

Minor Periods

7:45 PM - 9:15 PM
3:32 AM - 5:02 AM

Action Rating: 4 out of 5

Tuesday, July 14, 2026

Weather Forecast

Sunny
93.4°F
65.5°F
79.3°F
59%
0 in
3%
0%
13.6 mph
9.3


Air Quality

AQI: 1 - Good
PM2.5: 9.52 μg/m3
PM10: 10.93 μg/m3
Carbon Monoxide: 158.38 μg/m3
Nitrogen Dioxide: 5.5 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 104.17 μg/m3

Astronomical

Sunrise: 5:28 AM
Sun Transit: 12:55 AM
Sunset: 8:22 PM
Daylight: 14 hrs 54 mins
Moonrise: 5:20 AM
Moon Transit: 1:16 PM
Moonset: 8:59 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

2:42 AM - 5:12 AM
12:46 AM - 3:16 PM

Minor Periods

8:29 PM - 9:59 PM
4:50 AM - 6:20 AM

Action Rating: 5 out of 5

Wednesday, July 15, 2026

Weather Forecast

Sunny
96.7°F
71.2°F
84°F
51%
0 in
2%
0%
12.5 mph
9.3


Air Quality

AQI: 1 - Good
PM2.5: 6.11 μg/m3
PM10: 6.24 μg/m3
Carbon Monoxide: 146 μg/m3
Nitrogen Dioxide: 3.09 μg/m3
Sulphur Dioxide: 0.97 μg/m3
Ozone: 95.71 μg/m3

Astronomical

Sunrise: 5:29 AM
Sun Transit: 12:55 AM
Sunset: 8:22 PM
Daylight: 14 hrs 53 mins
Moonrise: 6:42 AM
Moon Transit: 2:14 PM
Moonset: 9:33 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

3:43 AM - 6:13 AM
1:44 PM - 4:14 PM

Minor Periods

9:03 PM - 10:33 PM
6:12 AM - 7:42 AM

Action Rating: 3 out of 5

Thursday, July 16, 2026

Weather Forecast

Sunny
87.7°F
63.3°F
76.7°F
51%
0.02 in
36%
0%
11.9 mph
7.9


Air Quality

AQI: 1 - Good
PM2.5: 6.2 μg/m3
PM10: 6.28 μg/m3
Carbon Monoxide: 141.12 μg/m3
Nitrogen Dioxide: 3.62 μg/m3
Sulphur Dioxide: 0.48 μg/m3
Ozone: 88.88 μg/m3

Astronomical

Sunrise: 5:29 AM
Sun Transit: 12:55 AM
Sunset: 8:21 PM
Daylight: 14 hrs 52 mins
Moonrise: 8:01 AM
Moon Transit: 3:08 PM
Moonset: 10:01 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

4:38 AM - 7:08 AM
2:38 PM - 5:08 PM

Minor Periods

9:31 PM - 11:01 PM
7:31 AM - 9:01 AM

Action Rating: 3 out of 5

Friday, July 17, 2026

Weather Forecast

Sunny
81.4°F
56.9°F
69.4°F
51%
0 in
2%
0%
11.2 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 6.37 μg/m3
PM10: 6.44 μg/m3
Carbon Monoxide: 186.56 μg/m3
Nitrogen Dioxide: 6.46 μg/m3
Sulphur Dioxide: 0.46 μg/m3
Ozone: 65.78 μg/m3

Astronomical

Sunrise: 5:30 AM
Sun Transit: 12:55 AM
Sunset: 8:20 PM
Daylight: 14 hrs 50 mins
Moonrise: 9:16 AM
Moon Transit: 3:56 PM
Moonset: 10:25 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

5:30 AM - 8:00 AM
3:26 PM - 5:56 PM

Minor Periods

9:55 PM - 11:25 PM
8:46 AM - 10:16 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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