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

45°F
Sunny
Sunny
39.5°F
49.6°F
40%
SSW 10.7 mph
12.3 mph
45.7°F
21.3°F
0 in
25%
9 mi
1026 mbar
2.7

Five Day Weather Forecast

Sunny
Tue
H: 50°F
L: 31°F
Moderate rain
Wed
H: 44°F
L: 37°F
Patchy rain nearby
Thu
H: 59°F
L: 38°F
Sunny
Fri
H: 58°F
L: 39°F
Overcast
Sat
H: 51°F
L: 39°F

Air Quality

AQI: 1 - Good
PM2.5: 7.35 μg/m3
PM10: 8.05 μg/m3
Carbon Monoxide: 180.85 μg/m3
Nitrogen Dioxide: 6.05 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 101 μg/m3

Astronomical

Sunrise: 5:59 AM
Sun Transit: 12:46 AM
Sunset: 7:35 PM
Daylight: 13 hrs 36 mins
Moonrise: 8:46 AM
Moon Transit: 4:58 PM
Moonset: 12:07 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.8%

Best Times for Fishing or Hunting

Major Periods

6:27 AM - 8:57 AM
4:28 PM - 6:58 PM

Minor Periods

8:16 AM - 9:46 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Tuesday, April 21, 2026

Weather Forecast

Sunny
50.4°F
30.6°F
41.1°F
49%
0 in
0%
0%
10.7 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 5.77 μg/m3
PM10: 6.41 μg/m3
Carbon Monoxide: 180.69 μg/m3
Nitrogen Dioxide: 4.85 μg/m3
Sulphur Dioxide: 2.19 μg/m3
Ozone: 89.84 μg/m3

Astronomical

Sunrise: 5:59 AM
Sun Transit: 12:46 AM
Sunset: 7:35 PM
Daylight: 13 hrs 36 mins
Moonrise: 8:46 AM
Moon Transit: 4:58 PM
Moonset: 12:07 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.8%

Best Times for Fishing or Hunting

Major Periods

6:27 AM - 8:57 AM
4:28 PM - 6:58 PM

Minor Periods

8:16 AM - 9:46 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, April 22, 2026

Weather Forecast

Moderate rain
44°F
36.8°F
40.4°F
89%
0.24 in
91%
0%
11.6 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 10.65 μg/m3
PM10: 14.25 μg/m3
Carbon Monoxide: 161.37 μg/m3
Nitrogen Dioxide: 4.14 μg/m3
Sulphur Dioxide: 2.11 μg/m3
Ozone: 103.28 μg/m3

Astronomical

Sunrise: 5:58 AM
Sun Transit: 12:46 AM
Sunset: 7:36 PM
Daylight: 13 hrs 38 mins
Moonrise: 9:56 AM
Moon Transit: 6:01 PM
Moonset: 1:09 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%

Best Times for Fishing or Hunting

Major Periods

7:31 AM - 10:01 AM
5:31 PM - 8:01 PM

Minor Periods

9:26 AM - 10:56 AM
12:39 AM - 2:09 AM

Action Rating: 3 out of 5

Thursday, April 23, 2026

Weather Forecast

Patchy rain nearby
58.6°F
37.5°F
47.6°F
74%
0 in
0%
0%
13 mph
5.1


Air Quality

AQI: 1 - Good
PM2.5: 11.71 μg/m3
PM10: 15.43 μg/m3
Carbon Monoxide: 158.53 μg/m3
Nitrogen Dioxide: 5.59 μg/m3
Sulphur Dioxide: 1.98 μg/m3
Ozone: 91.2 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 12:46 AM
Sunset: 7:37 PM
Daylight: 13 hrs 41 mins
Moonrise: 11:10 AM
Moon Transit: 7:00 PM
Moonset: 1:58 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%

Best Times for Fishing or Hunting

Major Periods

8:31 AM - 11:01 AM
6:30 PM - 9:00 PM

Minor Periods

10:40 AM - 12:10 AM
1:28 AM - 2:58 AM

Action Rating: 2 out of 5

Friday, April 24, 2026

Weather Forecast

Sunny
57.5°F
38.8°F
47.5°F
58%
0 in
0%
0%
9.6 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 4.19 μg/m3
PM10: 4.87 μg/m3
Carbon Monoxide: 180.2 μg/m3
Nitrogen Dioxide: 7.56 μg/m3
Sulphur Dioxide: 2.1 μg/m3
Ozone: 83.4 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 12:45 AM
Sunset: 7:38 PM
Daylight: 13 hrs 43 mins
Moonrise: 12:26 AM
Moon Transit: 7:52 PM
Moonset: 2:36 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%

Best Times for Fishing or Hunting

Major Periods

9:25 AM - 11:55 AM
7:22 PM - 9:52 PM

Minor Periods

11:56 AM - 1:26 PM
2:06 AM - 3:36 AM

Action Rating: 3 out of 5

Saturday, April 25, 2026

Weather Forecast

Overcast
51.4°F
39°F
44.3°F
73%
0 in
0%
0%
10.1 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 10.72 μg/m3
PM10: 13.51 μg/m3
Carbon Monoxide: 221.49 μg/m3
Nitrogen Dioxide: 14.35 μg/m3
Sulphur Dioxide: 2.5 μg/m3
Ozone: 70.77 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 12:45 AM
Sunset: 7:39 PM
Daylight: 13 hrs 46 mins
Moonrise: 1:37 PM
Moon Transit: 8:40 PM
Moonset: 3:05 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%

Best Times for Fishing or Hunting

Major Periods

10:15 AM - 12:45 AM
8:10 PM - 10:40 PM

Minor Periods

1:07 PM - 2:37 PM
2:35 AM - 4:05 AM

Action Rating: 2 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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