Water Temperature of the Mystic River in Noank, CT

Current Water Temperature

46.0°F

Measurement Time: Monday, April 10, 2023, 7:42 AM EDT

Temperature Locations

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Local Points of Interest

Groton, CT

Mystic River

Station Name: MYSTIC RIVER AT RAM ISLAND YACHT CLUB AT NOANK, CT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
54 Front St
Noank, CT 06340
New London County

GPS Coordinates: 41.32768056, -71.9841611

Nearby Water Temperatures

Mystic Harbor, Mystic, CT (1.5 mi)
Mystic River, Mystic, CT (2.5 mi)
Mystic River, Old Mystic, CT (3.6 mi)
Thames River, Groton, CT (5.3 mi)
Thames River, New London, CT (6.5 mi)
Pawcatuck River, Westerly, RI (8.7 mi)
Yantic River, Norwich, CT (17.5 mi)
Connecticut River, Old Lyme, CT (18.8 mi)
Fort Pond Bay, Montauk, NY (19.3 mi)
East Branch Eightmile River, Lyme, CT (19.4 mi)
Eightmile River, East Haddam, CT (19.7 mi)
Orient Harbor, Orient, NY (21.3 mi)
Connecticut River, Middletown, CT (33 mi)
Natchaug River, Chaplin, CT (34.3 mi)
Great Harbor, North Kingstown, RI (34.7 mi)

Weather for Noank, Connecticut

Current Weather

41.5°F
Clear
Clear
34°F
40.4°F
73%
WNW 14.3 mph
21.7 mph
35.3°F
33.9°F
0 in
0%
9 mi
1014 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Sun
H: 53°F
L: 39°F
Patchy rain nearby
Mon
H: 47°F
L: 34°F
Patchy rain nearby
Tue
H: 47°F
L: 33°F
Patchy rain nearby
Wed
H: 50°F
L: 43°F
Partly Cloudy
Thu
H: 59°F
L: 42°F

Air Quality

AQI: 1 - Good
PM2.5: 4.05 μg/m3
PM10: 4.15 μg/m3
Carbon Monoxide: 196.85 μg/m3
Nitrogen Dioxide: 11.15 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 67 μg/m3

Astronomical

Sunrise: 6:02 AM
Sun Transit: 12:47 AM
Sunset: 7:32 PM
Daylight: 13 hrs 30 mins
Moonrise: 6:57 AM
Moon Transit: 2:49 PM
Moonset: 10:53 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%

Best Times for Fishing or Hunting

Major Periods

4:18 AM - 6:48 AM
2:19 PM - 4:49 PM

Minor Periods

10:23 PM - 11:53 PM
6:27 AM - 7:57 AM

Action Rating: 3 out of 5

Frost Advisory issued April 19 at 2:18PM EDT until April 20 at 8:00AM EDT by NWS Upton NY

Effective: Sun April 19, 2026, 2:18 PM
Expires: Sun April 19, 2026, 10:30 PM

* WHAT...For the Frost Advisory, temperatures in the mid 30s will result in frost formation. For the Freeze Warning, sub-freezing temperatures from the mid 20s to lower 30s expected. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...For the Frost Advisory, from midnight tonight to 8 AM EDT Monday. For the Freeze Warning, from midnight Monday Night to 9 AM EDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops and other sensitive vegetation. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.


Freeze Warning issued April 19 at 2:18PM EDT until April 21 at 9:00AM EDT by NWS Upton NY

Effective: Sun April 19, 2026, 2:18 PM
Expires: Sun April 19, 2026, 10:30 PM

* WHAT...For the Frost Advisory, temperatures in the mid 30s will result in frost formation. For the Freeze Warning, sub-freezing temperatures from the mid 20s to lower 30s expected. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...For the Frost Advisory, from midnight tonight to 8 AM EDT Monday. For the Freeze Warning, from midnight Monday Night to 9 AM EDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops and other sensitive vegetation. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.


Freeze Warning issued April 19 at 2:18PM EDT until April 21 at 9:00AM EDT by NWS Upton NY

Effective: Sun April 19, 2026, 2:18 PM
Expires: Sun April 19, 2026, 10:30 PM

* WHAT...Sub-freezing temperatures from the mid 20s to lower 30s expected. * WHERE...In Connecticut, Northern Fairfield, Northern Middlesex, Northern New Haven, and Northern New London Counties. In New Jersey, Essex, and Union Counties. In New York, Orange and Putnam Counties. * WHEN...From midnight Monday Night to 9 AM EDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops and other sensitive vegetation.

Take steps now to protect tender plants from the cold.
Sunday, April 19, 2026

Weather Forecast

Patchy rain nearby
53.4°F
38.5°F
46.5°F
89%
0.07 in
88%
0%
19.2 mph
2.1


Air Quality

AQI: 1 - Good
PM2.5: 8.65 μg/m3
PM10: 11.43 μg/m3
Carbon Monoxide: 176.05 μg/m3
Nitrogen Dioxide: 5.5 μg/m3
Sulphur Dioxide: 1.37 μg/m3
Ozone: 85.68 μg/m3

Astronomical

Sunrise: 6:02 AM
Sun Transit: 12:47 AM
Sunset: 7:32 PM
Daylight: 13 hrs 30 mins
Moonrise: 6:57 AM
Moon Transit: 2:49 PM
Moonset: 10:53 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%

Best Times for Fishing or Hunting

Major Periods

4:18 AM - 6:48 AM
2:19 PM - 4:49 PM

Minor Periods

10:23 PM - 11:53 PM
6:27 AM - 7:57 AM

Action Rating: 3 out of 5

Monday, April 20, 2026

Weather Forecast

Patchy rain nearby
46.8°F
34°F
40.5°F
72%
0.15 in
87%
0%
15.7 mph
3.3


Air Quality

AQI: 1 - Good
PM2.5: 5.05 μg/m3
PM10: 5.33 μg/m3
Carbon Monoxide: 199.05 μg/m3
Nitrogen Dioxide: 7.24 μg/m3
Sulphur Dioxide: 1.78 μg/m3
Ozone: 80.68 μg/m3

Astronomical

Sunrise: 6:01 AM
Sun Transit: 12:46 AM
Sunset: 7:33 PM
Daylight: 13 hrs 33 mins
Moonrise: 7:46 AM
Moon Transit: 3:53 PM
Moonset: 12:07 PM
Moon Phase: Waxing Crescent
Moon Illumination: 10.8%

Best Times for Fishing or Hunting

Major Periods

5:22 AM - 7:52 AM
3:23 PM - 5:53 PM

Minor Periods

12:00 AM - 12:00 AM
7:16 AM - 8:46 AM

Action Rating: 2 out of 5

Tuesday, April 21, 2026

Weather Forecast

Patchy rain nearby
47.2°F
33.1°F
41.1°F
51%
0.01 in
68%
0%
13.6 mph
5.9


Air Quality

AQI: 1 - Good
PM2.5: 4.83 μg/m3
PM10: 5.43 μg/m3
Carbon Monoxide: 180.53 μg/m3
Nitrogen Dioxide: 4.05 μg/m3
Sulphur Dioxide: 1.91 μg/m3
Ozone: 94.28 μg/m3

Astronomical

Sunrise: 5:59 AM
Sun Transit: 12:46 AM
Sunset: 7:35 PM
Daylight: 13 hrs 35 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

Patchy rain nearby
49.8°F
42.5°F
45.6°F
83%
0.18 in
89%
0%
16.8 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 9.47 μg/m3
PM10: 13.12 μg/m3
Carbon Monoxide: 160.12 μg/m3
Nitrogen Dioxide: 3.5 μg/m3
Sulphur Dioxide: 1.81 μg/m3
Ozone: 106 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: 1:08 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%

Best Times for Fishing or Hunting

Major Periods

7:30 AM - 10:00 AM
5:31 PM - 8:01 PM

Minor Periods

9:26 AM - 10:56 AM
12:38 AM - 2:08 AM

Action Rating: 3 out of 5

Thursday, April 23, 2026

Weather Forecast

Partly Cloudy
59.3°F
42.2°F
50.2°F
69%
0 in
0%
0%
12.3 mph
5.6


Air Quality

AQI: 1 - Good
PM2.5: 14.18 μg/m3
PM10: 19.95 μg/m3
Carbon Monoxide: 160.37 μg/m3
Nitrogen Dioxide: 5.4 μg/m3
Sulphur Dioxide: 1.9 μg/m3
Ozone: 97 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 12:46 AM
Sunset: 7:37 PM
Daylight: 13 hrs 40 mins
Moonrise: 11:11 AM
Moon Transit: 7:00 PM
Moonset: 1:57 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

10:41 AM - 12:11 AM
1:27 AM - 2:57 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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