Water Temperature of the Mystic River in Old Mystic, CT

Current Water Temperature

54.5°F

Measurement Time: Wednesday, April 5, 2023, 10:36 AM EDT

Temperature Locations

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Mystic River

Station Name: MYSTIC RIVER US RTE I95 BRIDGE NEAR OLD MYSTIC, CT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
3 Whitehall Lndg
Old Mystic, CT 06355
New London County

GPS Coordinates: 41.37782778, -71.9631806

Nearby Water Temperatures

Mystic River, Mystic, CT (1.1 mi)
Mystic Harbor, Mystic, CT (2.2 mi)
Mystic River, Noank, CT (3.6 mi)
Thames River, Groton, CT (6.5 mi)
Pawcatuck River, Westerly, RI (6.8 mi)
Thames River, New London, CT (6.9 mi)
Yantic River, Norwich, CT (14.9 mi)
East Branch Eightmile River, Lyme, CT (19.6 mi)
Eightmile River, East Haddam, CT (19.6 mi)
Connecticut River, Old Lyme, CT (20.4 mi)
Fort Pond Bay, Montauk, NY (22.8 mi)
Orient Harbor, Orient, NY (24.4 mi)
Natchaug River, Chaplin, CT (31.2 mi)
Hemlock Brook, Foster, RI (31.6 mi)
Wilbur Hollow Brook, Clayville, RI (31.6 mi)

Weather for Old Mystic, Connecticut

Current Weather

59.9°F
Clear
Clear
50°F
59.9°F
76%
NNE 4.9 mph
10.3 mph
59.9°F
52.4°F
0 in
0%
6 mi
1015 mbar
0

Five Day Weather Forecast

Sunny
Sun
H: 81°F
L: 57°F
Sunny
Mon
H: 80°F
L: 56°F
Sunny
Tue
H: 78°F
L: 62°F
Light rain shower
Wed
H: 69°F
L: 62°F
Patchy rain nearby
Thu
H: 74°F
L: 62°F

Air Quality

AQI: 1 - Good
PM2.5: 6.3 μg/m3
PM10: 7.2 μg/m3
Carbon Monoxide: 147 μg/m3
Nitrogen Dioxide: 15.7 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 52 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 12:54 AM
Sunset: 8:11 PM
Daylight: 14 hrs 34 mins
Moonrise: 6:40 PM
Moon Transit: 10:58 PM
Moonset: 2:23 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

12:31 AM - 3:01 PM
12:00 AM - 12:00 AM

Minor Periods

6:10 PM - 7:40 PM
1:53 AM - 3:23 AM

Action Rating: 2 out of 5

Sunday, July 26, 2026

Weather Forecast

Sunny
80.5°F
56.7°F
66.7°F
64%
0 in
4%
0%
8.5 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 8.37 μg/m3
PM10: 9.6 μg/m3
Carbon Monoxide: 121.04 μg/m3
Nitrogen Dioxide: 7.77 μg/m3
Sulphur Dioxide: 0.49 μg/m3
Ozone: 86.29 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 12:54 AM
Sunset: 8:11 PM
Daylight: 14 hrs 34 mins
Moonrise: 6:40 PM
Moon Transit: 10:58 PM
Moonset: 2:23 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

12:31 AM - 3:01 PM
12:00 AM - 12:00 AM

Minor Periods

6:10 PM - 7:40 PM
1:53 AM - 3:23 AM

Action Rating: 2 out of 5

Monday, July 27, 2026

Weather Forecast

Sunny
79.9°F
55.6°F
67.3°F
66%
0 in
5%
0%
9.2 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 13.94 μg/m3
PM10: 15.22 μg/m3
Carbon Monoxide: 131.63 μg/m3
Nitrogen Dioxide: 10.04 μg/m3
Sulphur Dioxide: 0.67 μg/m3
Ozone: 84.42 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 12:54 AM
Sunset: 8:10 PM
Daylight: 14 hrs 32 mins
Moonrise: 7:22 PM
Moon Transit: 11:48 PM
Moonset: 3:18 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

1:22 PM - 3:52 PM
12:00 AM - 12:00 AM

Minor Periods

6:52 PM - 8:22 PM
2:48 AM - 4:18 AM

Action Rating: 3 out of 5

Tuesday, July 28, 2026

Weather Forecast

Sunny
77.9°F
61.5°F
69.1°F
75%
0 in
8%
0%
11 mph
7.9


Air Quality

AQI: 1 - Good
PM2.5: 9.1 μg/m3
PM10: 11.88 μg/m3
Carbon Monoxide: 102.88 μg/m3
Nitrogen Dioxide: 2.95 μg/m3
Sulphur Dioxide: 0.54 μg/m3
Ozone: 100.33 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 12:54 AM
Sunset: 8:09 PM
Daylight: 14 hrs 30 mins
Moonrise: 7:57 PM
Moon Transit: 12:00 AM
Moonset: 4:20 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:12 PM - 4:42 PM

Minor Periods

7:27 PM - 8:57 PM
3:50 AM - 5:20 AM

Action Rating: 4 out of 5

Wednesday, July 29, 2026

Weather Forecast

Light rain shower
68.8°F
61.7°F
65.5°F
97%
1.16 in
94%
0%
14.5 mph
2.2


Air Quality

AQI: 1 - Good
PM2.5: 4.65 μg/m3
PM10: 5.34 μg/m3
Carbon Monoxide: 142.23 μg/m3
Nitrogen Dioxide: 3.6 μg/m3
Sulphur Dioxide: 0.61 μg/m3
Ozone: 98.75 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 12:54 AM
Sunset: 8:08 PM
Daylight: 14 hrs 28 mins
Moonrise: 8:26 PM
Moon Transit: 12:37 AM
Moonset: 5:24 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:07 AM - 2:37 AM
3:00 PM - 5:30 PM

Minor Periods

7:56 PM - 9:26 PM
4:54 AM - 6:24 AM

Action Rating: 4 out of 5

Thursday, July 30, 2026

Weather Forecast

Patchy rain nearby
74.4°F
62°F
66.8°F
83%
0.08 in
71%
0%
13.6 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 2.67 μg/m3
PM10: 2.67 μg/m3
Carbon Monoxide: 212.89 μg/m3
Nitrogen Dioxide: 7.87 μg/m3
Sulphur Dioxide: 0.48 μg/m3
Ozone: 51 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 12:54 AM
Sunset: 8:07 PM
Daylight: 14 hrs 26 mins
Moonrise: 8:51 PM
Moon Transit: 1:24 AM
Moonset: 6:31 AM
Moon Phase: Full
Moon Illumination: 97.1%

Best Times for Fishing or Hunting

Major Periods

12:54 AM - 3:24 AM
3:45 PM - 6:15 PM

Minor Periods

8:21 PM - 9:51 PM
6:01 AM - 7:31 AM

Action Rating: 5 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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