Water Temperature of the Mystic River in Mystic, CT

Current Water Temperature

49.3°F

Measurement Time: Monday, April 10, 2023, 5:24 AM EDT

Temperature Locations

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Local Points of Interest

Mystic Seaport

Mystic River

Station Name: MYSTIC RIVER AT MYSTIC SEAPORT NEAR MYSTIC, CT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
93 Pearl St
Mystic, CT 06355
New London County

GPS Coordinates: 41.3614722, -71.96727778

Nearby Water Temperatures

Mystic Harbor, Mystic, CT (1 mi)
Mystic River, Old Mystic, CT (1.1 mi)
Mystic River, Noank, CT (2.5 mi)
Thames River, Groton, CT (6 mi)
Thames River, New London, CT (6.7 mi)
Pawcatuck River, Westerly, RI (7.1 mi)
Yantic River, Norwich, CT (15.8 mi)
East Branch Eightmile River, Lyme, CT (19.6 mi)
Eightmile River, East Haddam, CT (19.7 mi)
Connecticut River, Old Lyme, CT (19.9 mi)
Fort Pond Bay, Montauk, NY (21.6 mi)
Orient Harbor, Orient, NY (23.5 mi)
Natchaug River, Chaplin, CT (32.2 mi)
Wilbur Hollow Brook, Clayville, RI (32.7 mi)
Hemlock Brook, Foster, RI (32.7 mi)

Weather for Mystic, Connecticut

Current Weather

10.9°F
Clear
Clear
-2.5°F
10.6°F
32%
NNW 10.1 mph
12.7 mph
1.9°F
-16.7°F
0 in
0%
9 mi
1038 mbar
0

Five Day Weather Forecast

Sunny
Sat
H: 21°F
L: 6°F
Moderate or heavy snow showers
Sun
H: 24°F
L: 9°F
Moderate or heavy snow showers
Mon
H: 31°F
L: 20°F
Sunny
Tue
H: 23°F
L: 15°F
Partly Cloudy
Wed
H: 25°F
L: 7°F

Air Quality

AQI: 1 - Good
PM2.5: 2.25 μg/m3
PM10: 2.35 μg/m3
Carbon Monoxide: 184.85 μg/m3
Nitrogen Dioxide: 3.95 μg/m3
Sulphur Dioxide: 1.75 μg/m3
Ozone: 77 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 12:00 AM
Sunset: 4:54 PM
Daylight: 9 hrs 48 mins
Moonrise: 9:51 AM
Moon Transit: 4:32 PM
Moonset: 11:28 PM
Moon Phase: First Quarter
Moon Illumination: 34.7%

Best Times for Fishing or Hunting

Major Periods

6:08 AM - 8:38 AM
4:02 PM - 6:32 PM

Minor Periods

12:00 AM - 12:00 AM
9:21 AM - 10:51 AM

Action Rating: 2 out of 5

Winter Storm Warning issued January 24 at 1:19PM EST until January 26 at 6:00PM EST by NWS Upton NY

Effective: Sat January 24, 2026, 1:19 PM
Expires: Sun January 25, 2026, 3:00 AM

* WHAT...Heavy snow expected. Total snow accumulations between 10 and 16 inches. Sleet may mix in with the snow Sunday late afternoon and evening near the Connecticut coast, southern Westchester, and northeast New Jersey. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...From 3 AM Sunday to 6 PM EST Monday. * IMPACTS...Roads will become snow covered and hazardous. Visibilities may drop below 1/4 mile due to falling and blowing snow.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Check local Department of Transportation information services for the latest road conditions.


Winter Storm Warning issued January 24 at 1:24PM EST until January 26 at 8:00PM EST by NWS Boston/Norton MA

Effective: Sat January 24, 2026, 1:24 PM
Expires: Sun January 25, 2026, 3:00 AM

* WHAT...Heavy snow expected. Total snow accumulations between 12 and 18 inches. * WHERE...Much of southern New England. * WHEN...From 7 AM Sunday to 8 PM EST Monday. * IMPACTS...Travel will be difficult due to low visibility and snow covered roads.

Consider delaying all travel during the storm. If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency.


Winter Storm Warning issued January 24 at 1:24PM EST until January 26 at 8:00PM EST by NWS Boston/Norton MA

Effective: Sat January 24, 2026, 1:24 PM
Expires: Sun January 25, 2026, 3:00 AM

* WHAT...Heavy snow expected. Total snow accumulations between 6 and 12 inches. Winds gusting as high as 35 mph. * WHERE...Cape Cod and the Islands. * WHEN...From 7 AM Sunday to 8 PM EST Monday. * IMPACTS...Travel will be difficult due to low visibility and snow covered roads.

Consider delaying all travel during the storm. If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency.
Saturday, January 24, 2026

Weather Forecast

Sunny
21°F
6.4°F
12.9°F
27%
0 in
0%
0%
20.8 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 2.29 μg/m3
PM10: 2.46 μg/m3
Carbon Monoxide: 171.61 μg/m3
Nitrogen Dioxide: 3.43 μg/m3
Sulphur Dioxide: 1.57 μg/m3
Ozone: 73.64 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 12:00 AM
Sunset: 4:54 PM
Daylight: 9 hrs 48 mins
Moonrise: 9:51 AM
Moon Transit: 4:32 PM
Moonset: 11:28 PM
Moon Phase: First Quarter
Moon Illumination: 34.7%

Best Times for Fishing or Hunting

Major Periods

6:08 AM - 8:38 AM
4:02 PM - 6:32 PM

Minor Periods

12:00 AM - 12:00 AM
9:21 AM - 10:51 AM

Action Rating: 2 out of 5

Sunday, January 25, 2026

Weather Forecast

Moderate or heavy snow showers
24.4°F
9.1°F
17.2°F
65%
1.6 in
64%
22%
26.8 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.74 μg/m3
PM10: 2.96 μg/m3
Carbon Monoxide: 198.85 μg/m3
Nitrogen Dioxide: 6.04 μg/m3
Sulphur Dioxide: 1.88 μg/m3
Ozone: 74.44 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 12:00 AM
Sunset: 4:56 PM
Daylight: 9 hrs 50 mins
Moonrise: 10:16 AM
Moon Transit: 5:22 PM
Moonset: 12:28 AM
Moon Phase: First Quarter
Moon Illumination: 45.8%

Best Times for Fishing or Hunting

Major Periods

6:56 AM - 9:26 AM
4:52 PM - 7:22 PM

Minor Periods

9:46 AM - 11:16 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Monday, January 26, 2026

Weather Forecast

Moderate or heavy snow showers
31.4°F
19.7°F
26.2°F
82%
1.16 in
77%
19%
28.4 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.23 μg/m3
PM10: 4 μg/m3
Carbon Monoxide: 173.33 μg/m3
Nitrogen Dioxide: 6.14 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 73.52 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 12:00 AM
Sunset: 4:57 PM
Daylight: 9 hrs 52 mins
Moonrise: 10:45 AM
Moon Transit: 6:15 PM
Moonset: 12:43 AM
Moon Phase: First Quarter
Moon Illumination: 57.1%

Best Times for Fishing or Hunting

Major Periods

7:47 AM - 10:17 AM
5:45 PM - 8:15 PM

Minor Periods

10:15 AM - 11:45 AM
12:13 AM - 1:43 AM

Action Rating: 2 out of 5

Tuesday, January 27, 2026

Weather Forecast

Sunny
22.8°F
15.4°F
18.7°F
69%
0 in
0%
0%
24.2 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.28 μg/m3
PM10: 3.33 μg/m3
Carbon Monoxide: 186.34 μg/m3
Nitrogen Dioxide: 4.78 μg/m3
Sulphur Dioxide: 1.71 μg/m3
Ozone: 72.76 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 12:00 AM
Sunset: 4:58 PM
Daylight: 9 hrs 54 mins
Moonrise: 11:21 AM
Moon Transit: 7:13 PM
Moonset: 2:00 AM
Moon Phase: First Quarter
Moon Illumination: 68.0%

Best Times for Fishing or Hunting

Major Periods

8:44 AM - 11:14 AM
6:43 PM - 9:13 PM

Minor Periods

10:51 AM - 12:21 AM
1:30 AM - 3:00 AM

Action Rating: 2 out of 5

Wednesday, January 28, 2026

Weather Forecast

Partly Cloudy
25.2°F
6.8°F
15.6°F
80%
0 in
0%
6%
12.5 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 8.04 μg/m3
PM10: 8.13 μg/m3
Carbon Monoxide: 227.23 μg/m3
Nitrogen Dioxide: 9.74 μg/m3
Sulphur Dioxide: 3.23 μg/m3
Ozone: 66.31 μg/m3

Astronomical

Sunrise: 7:03 AM
Sun Transit: 12:00 AM
Sunset: 4:59 PM
Daylight: 9 hrs 56 mins
Moonrise: 12:08 AM
Moon Transit: 8:16 PM
Moonset: 3:17 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 78.1%

Best Times for Fishing or Hunting

Major Periods

9:44 AM - 12:14 AM
7:46 PM - 10:16 PM

Minor Periods

11:38 AM - 1:08 PM
2:47 AM - 4:17 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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