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

24.1°F

Conditions: Mist

Feels Like: 13.8°F

Heat Index: 29.4°F

Humidity: 91%

Wind: WNW 10.1 mph

Wind Gusts: 13.3 mph

Wind Chill: 24.4°F

Dew Point: 18.5°F

Precipitation: 0 in

Cloud Cover: 0%

Visibility: 4 mi

Air Pressure: 1011 mbar

UV Index: 1.2

Five Day Weather Forecast

Thu
H: 44°F
L: 23°F

Fri
H: 39°F
L: 26°F

Sat
H: 45°F
L: 35°F

Sun
H: 33°F
L: 22°F

Mon
H: 24°F
L: 19°F

Air Quality

AQI: 1 - Good

PM2.5: 7.15 μg/m3

PM10: 7.35 μg/m3

Carbon Monoxide: 218.85 μg/m3
Nitrogen Dioxide: 11.75 μg/m3
Sulphur Dioxide: 2.45 μg/m3
Ozone: 79 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 12:00 AM
Sunset: 5:35 PM
Daylight: 11 hrs 8 mins

Moonrise: 12:03 AM
Moon Transit: 8:13 PM
Moonset: 3:23 AM
Moon Phase: First Quarter
Moon Illumination: 72.9%

Best Times for Fishing or Hunting

Major Periods

9:42 AM - 12:12 AM
7:43 PM - 10:13 PM

Minor Periods

11:33 AM - 1:03 PM
2:53 AM - 4:23 AM

Action Rating: 2 out of 5

Special Weather Statement issued February 26 at 3:23AM EST by NWS Upton NY

Effective: Thu February 26, 2026, 3:23 AM
Expires: Thu February 26, 2026, 9:00 AM

Lightening winds and clearing skies are allowing temperatures to drop quickly this morning. Much of the area will likely see temperatures below freezing by sunrise if not already. These freezing temperatures combined with overnight precipitation and snowmelt have already caused areas of black ice. Black ice is expected to become more widespread by sunrise. Use caution if traveling this morning as black ice can make conditions very slick and potentially hazardous. Leave extra room between you and the car in front of you. Additionally, pedestrians should use caution walking on any untreated surfaces.

Special Weather Statement issued February 26 at 4:02AM EST by NWS Boston/Norton MA

Effective: Thu February 26, 2026, 4:02 AM
Expires: Thu February 26, 2026, 8:00 AM

A combination of snow melt, below freezing temperatures, and freezing fog have led to very slippery travel conditions this morning. Use caution both driving and walking on untreated surfaces through 9AM this morning.

Thursday, February 26, 2026

Weather Forecast

Conditions: Sunny

High Temperature: 43.9°F

Low Temperature: 22.8°F

Average Temperature: 33°F

Average Humidity: 72%

Precipitation: 0 in

Chance of Rain: 0%

Chance of Snow: 0%

Maximum Wind: 13 mph

UV Index: 0.5

Air Quality

AQI: 1 - Good

PM2.5: 12.69 μg/m3

PM10: 13.41 μg/m3

Carbon Monoxide: 242.13 μg/m3
Nitrogen Dioxide: 14.17 μg/m3
Sulphur Dioxide: 3.29 μg/m3
Ozone: 74.72 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 12:00 AM
Sunset: 5:35 PM
Daylight: 11 hrs 8 mins

Moonrise: 12:03 AM
Moon Transit: 8:13 PM
Moonset: 3:23 AM
Moon Phase: First Quarter
Moon Illumination: 72.9%

Best Times for Fishing or Hunting

Major Periods

9:42 AM - 12:12 AM
7:43 PM - 10:13 PM

Minor Periods

11:33 AM - 1:03 PM
2:53 AM - 4:23 AM

Action Rating: 2 out of 5

Friday, February 27, 2026

Weather Forecast

Conditions: Sunny

High Temperature: 39.2°F

Low Temperature: 26.3°F

Average Temperature: 32.6°F

Average Humidity: 71%

Precipitation: 0 in

Chance of Rain: 0%

Chance of Snow: 0%

Maximum Wind: 10.5 mph

UV Index: 0.6

Air Quality

AQI: 1 - Good

PM2.5: 7.16 μg/m3

PM10: 7.6 μg/m3

Carbon Monoxide: 238.57 μg/m3
Nitrogen Dioxide: 11.9 μg/m3
Sulphur Dioxide: 2.32 μg/m3
Ozone: 71.52 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 12:00 AM
Sunset: 5:36 PM
Daylight: 11 hrs 11 mins

Moonrise: 1:15 PM
Moon Transit: 9:12 PM
Moonset: 4:17 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 82.3%

Best Times for Fishing or Hunting

Major Periods

10:43 AM - 1:13 PM
8:42 PM - 11:12 PM

Minor Periods

12:45 AM - 2:15 PM
3:47 AM - 5:17 AM

Action Rating: 2 out of 5

Saturday, February 28, 2026

Weather Forecast

Conditions: Mist

High Temperature: 45°F

Low Temperature: 35.2°F

Average Temperature: 38.3°F

Average Humidity: 93%

Precipitation: 0 in

Chance of Rain: 0%

Chance of Snow: 0%

Maximum Wind: 12.5 mph

UV Index: 0.7

Air Quality

AQI: 1 - Good

PM2.5: 10.94 μg/m3

PM10: 14.5 μg/m3

Carbon Monoxide: 224.97 μg/m3
Nitrogen Dioxide: 9 μg/m3
Sulphur Dioxide: 2.23 μg/m3
Ozone: 81.32 μg/m3

Astronomical

Sunrise: 6:24 AM
Sun Transit: 12:00 AM
Sunset: 5:37 PM
Daylight: 11 hrs 13 mins

Moonrise: 2:32 PM
Moon Transit: 10:08 PM
Moonset: 4:58 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.1%

Best Times for Fishing or Hunting

Major Periods

11:40 AM - 2:10 PM
12:00 AM - 12:00 AM

Minor Periods

2:02 PM - 3:32 PM
4:28 AM - 5:58 AM

Action Rating: 3 out of 5

Sunday, March 1, 2026

Weather Forecast

Conditions: Moderate or heavy snow showers

High Temperature: 33.3°F

Low Temperature: 22.3°F

Average Temperature: 29.7°F

Average Humidity: 76%

Precipitation: 0.06 in

Chance of Rain: 73%

Chance of Snow: 16%

Maximum Wind: 16.1 mph

UV Index: 0.5

Air Quality

AQI: 1 - Good

PM2.5: 11.01 μg/m3

PM10: 11.59 μg/m3

Carbon Monoxide: 221.19 μg/m3
Nitrogen Dioxide: 15.76 μg/m3
Sulphur Dioxide: 3.18 μg/m3
Ozone: 75.2 μg/m3

Astronomical

Sunrise: 6:22 AM
Sun Transit: 12:00 AM
Sunset: 5:38 PM
Daylight: 11 hrs 16 mins

Moonrise: 3:47 PM
Moon Transit: 11:00 PM
Moonset: 5:31 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.8%

Best Times for Fishing or Hunting

Major Periods

12:33 AM - 3:03 PM
12:00 AM - 12:00 AM

Minor Periods

3:17 PM - 4:47 PM
5:01 AM - 6:31 AM

Action Rating: 3 out of 5

Monday, March 2, 2026

Weather Forecast

Conditions: Heavy snow

High Temperature: 23.5°F

Low Temperature: 18.6°F

Average Temperature: 20.5°F

Average Humidity: 76%

Precipitation: 0.27 in

Chance of Rain: 75%

Chance of Snow: 38%

Maximum Wind: 15.2 mph

UV Index: 0

Air Quality

AQI: 1 - Good

PM2.5: 2.77 μg/m3

PM10: 2.99 μg/m3

Carbon Monoxide: 188.43 μg/m3
Nitrogen Dioxide: 3.44 μg/m3
Sulphur Dioxide: 2.03 μg/m3
Ozone: 89.54 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 12:00 AM
Sunset: 5:40 PM
Daylight: 11 hrs 19 mins

Moonrise: 4:59 PM
Moon Transit: 11:46 PM
Moonset: 5:58 AM
Moon Phase: Full
Moon Illumination: 99.1%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

4:29 PM - 5:59 PM
5:28 AM - 6:58 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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Water Temperature of the Mystic River in Mystic, CT

Current Water Temperature

Temperature Locations

Local Points of Interest

Nearby Water Temperatures

Weather for Mystic, Connecticut

Current Weather

Five Day Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Special Weather Statement issued February 26 at 3:23AM EST by NWS Upton NY

Special Weather Statement issued February 26 at 4:02AM EST by NWS Boston/Norton MA

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Webcams Near Mystic, CT

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