Water Temperature of the Connecticut River in Middletown, CT

Current Water Temperature

74.1°F

Measurement Time: Monday, June 29, 2026, 12:15 PM EDT

Temperature Locations

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Local Points of Interest

East Hampton, CT

Connecticut River

Station Name: CONNECTICUT RIVER AT MIDDLE HADDAM, CT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 26 feet

Nearest Address:
1 River Rd
Middletown, CT 06424
Middlesex County

GPS Coordinates: 41.5417656, -72.5531454

Nearby Water Temperatures

Eightmile River, East Haddam, CT (13.3 mi)
East Branch Eightmile River, Lyme, CT (13.8 mi)
Quinnipiac River, Wallingford, CT (16.2 mi)
North Branch Park River, Hartford, CT (18.6 mi)
Connecticut River, Old Lyme, CT (19.1 mi)
Yantic River, Norwich, CT (22.4 mi)
New Haven Harbor, New Haven, CT (25.6 mi)
Thames River, New London, CT (26.4 mi)
Naugatuck River, Beacon Falls, CT (27.2 mi)
Thames River, Groton, CT (27.8 mi)
Natchaug River, Chaplin, CT (29.9 mi)
Orient Harbor, Orient, NY (30.8 mi)
Connecticut River, Suffield, CT (30.9 mi)
Mystic River, Old Mystic, CT (32.6 mi)
Mystic River, Mystic, CT (32.8 mi)

Weather for Middletown, Connecticut

Current Weather

87.1°F
Sunny
Sunny
84.9°F
86.7°F
30%
NNE 3.8 mph
4.4 mph
88.7°F
51.9°F
0 in
0%
9 mi
1018 mbar
8

Five Day Weather Forecast

Sunny
Mon
H: 90°F
L: 64°F
Sunny
Tue
H: 88°F
L: 64°F
Sunny
Wed
H: 98°F
L: 72°F
Sunny
Thu
H: 104°F
L: 74°F
Sunny
Fri
H: 103°F
L: 75°F

Air Quality

PM2.5: 14.8 μg/m3
PM10: 15.3 μg/m3
Carbon Monoxide: 129 μg/m3
Nitrogen Dioxide: 2.2 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 122 μg/m3

Astronomical

Sunrise: 5:19 AM
Sun Transit: 12:53 AM
Sunset: 8:29 PM
Daylight: 15 hrs 10 mins
Moonrise: 8:46 PM
Moon Transit: 12:14 AM
Moonset: 4:31 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:34 PM - 5:04 PM

Minor Periods

8:16 PM - 9:46 PM
4:01 AM - 5:31 AM

Action Rating: 5 out of 5

Extreme Heat Watch issued June 29 at 2:00AM EDT until July 3 at 8:00PM EDT by NWS Boston/Norton MA

Effective: Mon June 29, 2026, 2:00 AM
Expires: Mon June 29, 2026, 5:00 PM

* WHAT...Dangerously hot conditions with heat index values up to 111 possible. * WHERE...Portions of northern Connecticut, the majority of Massachusetts, and Rhode Island. * WHEN...From Wednesday morning through Friday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Monitor the latest forecasts and warnings for updates.
Monday, June 29, 2026

Weather Forecast

Sunny
90°F
64°F
76.8°F
64%
0 in
5%
0%
5.8 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 15.06 μg/m3
PM10: 15.55 μg/m3
Carbon Monoxide: 143.04 μg/m3
Nitrogen Dioxide: 4.53 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 95 μg/m3

Astronomical

Sunrise: 5:19 AM
Sun Transit: 12:53 AM
Sunset: 8:29 PM
Daylight: 15 hrs 10 mins
Moonrise: 8:46 PM
Moon Transit: 12:14 AM
Moonset: 4:31 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:34 PM - 5:04 PM

Minor Periods

8:16 PM - 9:46 PM
4:01 AM - 5:31 AM

Action Rating: 5 out of 5

Tuesday, June 30, 2026

Weather Forecast

Sunny
87.9°F
64.2°F
75°F
66%
0 in
17%
0%
11.2 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 12.49 μg/m3
PM10: 13.58 μg/m3
Carbon Monoxide: 141.54 μg/m3
Nitrogen Dioxide: 5.88 μg/m3
Sulphur Dioxide: 1.08 μg/m3
Ozone: 95.71 μg/m3

Astronomical

Sunrise: 5:19 AM
Sun Transit: 12:53 AM
Sunset: 8:28 PM
Daylight: 15 hrs 9 mins
Moonrise: 9:25 PM
Moon Transit: 1:05 AM
Moonset: 5:28 AM
Moon Phase: Full
Moon Illumination: 98.6%

Best Times for Fishing or Hunting

Major Periods

12:35 AM - 3:05 AM
3:25 PM - 5:55 PM

Minor Periods

8:55 PM - 10:25 PM
4:58 AM - 6:28 AM

Action Rating: 5 out of 5

Wednesday, July 1, 2026

Weather Forecast

Sunny
97.8°F
72.2°F
81.6°F
57%
0 in
6%
0%
10.7 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 12.5 μg/m3
PM10: 14.43 μg/m3
Carbon Monoxide: 167.41 μg/m3
Nitrogen Dioxide: 6.08 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 103.5 μg/m3

Astronomical

Sunrise: 5:20 AM
Sun Transit: 12:54 AM
Sunset: 8:28 PM
Daylight: 15 hrs 9 mins
Moonrise: 9:58 PM
Moon Transit: 1:55 AM
Moonset: 6:31 AM
Moon Phase: Full
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

1:25 AM - 3:55 AM
4:13 PM - 6:43 PM

Minor Periods

9:28 PM - 10:58 PM
6:01 AM - 7:31 AM

Action Rating: 3 out of 5

Thursday, July 2, 2026

Weather Forecast

Sunny
104.1°F
73.9°F
87.4°F
56%
0 in
2%
0%
11.4 mph
10


Air Quality

AQI: 1 - Good
PM2.5: 13.99 μg/m3
PM10: 17.04 μg/m3
Carbon Monoxide: 249.86 μg/m3
Nitrogen Dioxide: 4.66 μg/m3
Sulphur Dioxide: 1.04 μg/m3
Ozone: 102.48 μg/m3

Astronomical

Sunrise: 5:20 AM
Sun Transit: 12:54 AM
Sunset: 8:28 PM
Daylight: 15 hrs 8 mins
Moonrise: 10:25 PM
Moon Transit: 2:43 AM
Moonset: 7:35 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

2:13 AM - 4:43 AM
5:00 PM - 7:30 PM

Minor Periods

9:55 PM - 11:25 PM
7:05 AM - 8:35 AM

Action Rating: 2 out of 5

Friday, July 3, 2026

Weather Forecast

Sunny
102.9°F
74.9°F
87.8°F
53%
0 in
2%
0%
12.1 mph
9


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: 5:21 AM
Sun Transit: 12:54 AM
Sunset: 8:28 PM
Daylight: 15 hrs 7 mins
Moonrise: 10:49 PM
Moon Transit: 3:28 AM
Moonset: 8:41 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.3%

Best Times for Fishing or Hunting

Major Periods

2:58 AM - 5:28 AM
5:44 PM - 8:14 PM

Minor Periods

10:19 PM - 11:49 PM
8:11 AM - 9:41 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.

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