Water Temperature of the Mystic River in Old Mystic, CT

Current Water Temperature

54.5°F

Measurement Time: Wednesday, April 5, 2023, 10:42 AM EDT

Temperature Locations

View Nearby Locations     View All Connecticut Locations     View Locations Near Me

Sponsored Content

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 / 0 meters

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

44.1°F
Partly cloudy
Conditions: Partly cloudy
Humidity: 62%
Feels Like: 38°F
Wind: NNW 11.9 mph
Wind Gusts: 18.6 mph
Pressure: 29.92 in
Precipitation: 0 in
Cloud Cover: 75%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Fri
H: 65°F
L: 42°F
Sunny
Sat
H: 61°F
L: 46°F
Partly Cloudy
Sun
H: 64°F
L: 58°F
Moderate rain
Mon
H: 65°F
L: 55°F
Sunny
Tue
H: 63°F
L: 50°F

Air Quality

AQI: 1 - Good
PM2.5: 1.95 μg/m3
PM10: 1.95 μg/m3
Carbon Monoxide: 164.85 μg/m3
Nitrogen Dioxide: 3.55 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 57 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 12:33 AM
Sunset: 6:03 PM
Daylight: 11 hrs 1 mins
Moonrise: 3:05 AM
Moon Transit: 9:51 AM
Moonset: 4:26 PM
Moon Phase: Waning Crescent
Moon Illumination: 11.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:21 AM - 11:51 AM

Minor Periods

3:56 PM - 5:26 PM
2:35 AM - 4:05 AM

Action Rating: 2 out of 5

Frost Advisory issued October 17 at 1:44AM EDT until October 18 at 9:00AM EDT by NWS Upton NY

Effective: Fri October 17, 2025, 1:44 AM
Expires: Fri October 17, 2025, 2:45 PM

* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...In Connecticut, Northern Fairfield, Northern Middlesex, Northern New Haven, and Northern New London Counties. In New Jersey, Western Passaic County. In New York, Northern Westchester, Orange, Putnam, and Rockland Counties. * WHEN...From 11 PM this evening to 9 AM EDT Saturday. * IMPACTS...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.


Friday, October 17, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 52.8°F
Average Humidity: 57%
Chance of Rain: 0%
Wind: 14.8 mph
UV Index: 0.7

Air Quality

AQI: 1 - Good
PM2.5: 2.17 μg/m3
PM10: 2.17 μg/m3
Carbon Monoxide: 163.85 μg/m3
Nitrogen Dioxide: 3.47 μg/m3
Sulphur Dioxide: 1.43 μg/m3
Ozone: 67.96 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 12:33 AM
Sunset: 6:03 PM
Daylight: 11 hrs 1 mins
Moonrise: 3:05 AM
Moon Transit: 9:51 AM
Moonset: 4:26 PM
Moon Phase: Waning Crescent
Moon Illumination: 11.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:21 AM - 11:51 AM

Minor Periods

3:56 PM - 5:26 PM
2:35 AM - 4:05 AM

Action Rating: 2 out of 5

Saturday, October 18, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 54.1°F
Average Humidity: 62%
Chance of Rain: 0%
Wind: 8.7 mph
UV Index: 0.8

Air Quality

AQI: 1 - Good
PM2.5: 2.95 μg/m3
PM10: 3.1 μg/m3
Carbon Monoxide: 178.73 μg/m3
Nitrogen Dioxide: 6.71 μg/m3
Sulphur Dioxide: 2.06 μg/m3
Ozone: 62.24 μg/m3

Astronomical

Sunrise: 7:03 AM
Sun Transit: 12:32 AM
Sunset: 6:02 PM
Daylight: 10 hrs 59 mins
Moonrise: 4:09 AM
Moon Transit: 10:32 AM
Moonset: 4:45 PM
Moon Phase: Waning Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

12:10 AM - 2:40 AM
10:02 AM - 12:32 AM

Minor Periods

4:15 PM - 5:45 PM
3:39 AM - 5:09 AM

Action Rating: 3 out of 5

Sunday, October 19, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 61.5°F
Average Humidity: 76%
Chance of Rain: 0%
Wind: 16.3 mph
UV Index: 0.8

Air Quality

AQI: 1 - Good
PM2.5: 9.23 μg/m3
PM10: 12.63 μg/m3
Carbon Monoxide: 170.61 μg/m3
Nitrogen Dioxide: 3.85 μg/m3
Sulphur Dioxide: 2.31 μg/m3
Ozone: 89.84 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 12:32 AM
Sunset: 6:00 PM
Daylight: 10 hrs 56 mins
Moonrise: 5:11 AM
Moon Transit: 11:12 AM
Moonset: 5:03 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.3%

Best Times for Fishing or Hunting

Major Periods

12:50 AM - 3:20 AM
10:42 AM - 1:12 PM

Minor Periods

4:33 PM - 6:03 PM
4:41 AM - 6:11 AM

Action Rating: 3 out of 5

Monday, October 20, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 61.8°F
Average Humidity: 85%
Chance of Rain: 88%
Wind: 23.9 mph
UV Index: 0.5

Air Quality

AQI: 1 - Good
PM2.5: 4.82 μg/m3
PM10: 6.28 μg/m3
Carbon Monoxide: 137.05 μg/m3
Nitrogen Dioxide: 4.89 μg/m3
Sulphur Dioxide: 2.59 μg/m3
Ozone: 81.8 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 12:32 AM
Sunset: 5:59 PM
Daylight: 10 hrs 53 mins
Moonrise: 6:14 AM
Moon Transit: 11:53 AM
Moonset: 5:23 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

1:31 AM - 4:01 AM
11:23 AM - 1:53 PM

Minor Periods

4:53 PM - 6:23 PM
5:44 AM - 7:14 AM

Action Rating: 4 out of 5

Tuesday, October 21, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 56.9°F
Average Humidity: 69%
Chance of Rain: 0%
Wind: 15.2 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 3.55 μg/m3
PM10: 3.73 μg/m3
Carbon Monoxide: 161.23 μg/m3
Nitrogen Dioxide: 8.62 μg/m3
Sulphur Dioxide: 2.83 μg/m3
Ozone: 68.08 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 12:32 AM
Sunset: 5:57 PM
Daylight: 10 hrs 51 mins
Moonrise: 7:16 AM
Moon Transit: 12:34 AM
Moonset: 5:44 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

2:12 AM - 4:42 AM
12:04 AM - 2:34 PM

Minor Periods

5:14 PM - 6:44 PM
6:46 AM - 8:16 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.

Webcams Near Old Mystic, CT

Sponsored Content