Water Temperature of the Mystic River in Old Mystic, CT
Current Water Temperature
Measurement Time: Wednesday, April 5, 2023, 10:42 AM EDT
Temperature Locations
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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

Humidity: 90%
Feels Like: 60.1°F
Wind: WSW 4.7 mph
Wind Gusts: 9.9 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0
Five Day Weather Forecast

Thu
H: 84°F
L: 56°F

Fri
H: 81°F
L: 63°F

Sat
H: 67°F
L: 60°F

Sun
H: 75°F
L: 59°F

Mon
H: 65°F
L: 61°F
Air Quality
Nitrogen Dioxide: 17.21 μg/m3
Sulphur Dioxide: 7.03 μg/m3
Ozone: 90 μg/m3
Astronomical
Sun Transit: 12:46 AM
Sunset: 8:18 PM
Daylight: 15 hrs 3 mins
Moon Transit: 8:50 PM
Moonset: 2:04 AM
Moon Phase: First Quarter
Moon Illumination: 70.6%
Best Times for Fishing or Hunting
Major Periods
10:28 AM - 12:58 AM8:20 PM - 10:50 PM
Minor Periods
2:38 PM - 4:08 PM1:34 AM - 3:04 AM
Action Rating: 3 out of 5
Air Quality Alert issued June 3 at 3:15PM EDT by NWS Upton NY
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Tue June 3, 2025, 3:15 PM
Expires: Wed June 4, 2025, 11:00 PM
The Connecticut Department of Energy and Environmental Protection has issued an Air Quality Action Day for the following counties: Fairfield, New Haven, Middlesex, Northern New London. from 11 AM to 11 PM EDT Wednesday. An Air Quality Action Day means that Ground Level Ozone within the region may approach or exceed unhealthy standards. For additional information, please visit the Connecticut Department of Energy and Environmental Protection Web site at http://www.ct.gov/deep/aqi
Air Quality Alert issued June 4 at 4:17PM EDT by NWS Upton NY
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Wed June 4, 2025, 4:17 PM
Expires: Wed June 4, 2025, 11:00 PM
The Connecticut Department of Energy and Environmental Protection's Air Quality Action Day remains in effect for the following counties: Fairfield, New Haven, Middlesex, and Northern New London, until 11 PM EDT this evening. An Air Quality Action Day means that Ground Level Ozone within the region may approach or exceed unhealthy standards. For additional information, please visit the Connecticut Department of Energy and Environmental Protection Web site at http://www.ct.gov/deep/aqi
Air Quality Alert issued June 3 at 3:15PM EDT by NWS Upton NY
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Tue June 3, 2025, 3:15 PM
Expires: Wed June 4, 2025, 11:00 PM
The Connecticut Department of Energy and Environmental Protection has issued an Air Quality Action Day for the following counties: Fairfield, New Haven, Middlesex, Northern New London. from 11 AM to 11 PM EDT Wednesday. An Air Quality Action Day means that Ground Level Ozone within the region may approach or exceed unhealthy standards. For additional information, please visit the Connecticut Department of Energy and Environmental Protection Web site at http://www.ct.gov/deep/aqi
Air Quality Alert issued June 3 at 3:15PM EDT by NWS Upton NY
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Tue June 3, 2025, 3:15 PM
Expires: Wed June 4, 2025, 11:00 PM
The Connecticut Department of Energy and Environmental Protection has issued an Air Quality Action Day for the following counties: Fairfield, New Haven, Middlesex, Northern New London. from 11 AM to 11 PM EDT Wednesday. An Air Quality Action Day means that Ground Level Ozone within the region may approach or exceed unhealthy standards. For additional information, please visit the Connecticut Department of Energy and Environmental Protection Web site at http://www.ct.gov/deep/aqi
Air Quality Alert issued June 4 at 4:17PM EDT by NWS Upton NY
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Wed June 4, 2025, 4:17 PM
Expires: Wed June 4, 2025, 11:00 PM
The Connecticut Department of Energy and Environmental Protection's Air Quality Action Day remains in effect for the following counties: Fairfield, New Haven, Middlesex, and Northern New London, until 11 PM EDT this evening. An Air Quality Action Day means that Ground Level Ozone within the region may approach or exceed unhealthy standards. For additional information, please visit the Connecticut Department of Energy and Environmental Protection Web site at http://www.ct.gov/deep/aqi
Weather Forecast
Average Temperature: 69.3°F
Average Humidity: 86%
Wind: 10.7 mph
UV Index: 2
Air Quality
Nitrogen Dioxide: 12.55 μg/m3
Sulphur Dioxide: 7.02 μg/m3
Ozone: 125.84 μg/m3
Astronomical
Sun Transit: 12:46 AM
Sunset: 8:18 PM
Daylight: 15 hrs 3 mins
Moon Transit: 8:50 PM
Moonset: 2:04 AM
Moon Phase: First Quarter
Moon Illumination: 70.6%
Best Times for Fishing or Hunting
Major Periods
10:28 AM - 12:58 AM8:20 PM - 10:50 PM
Minor Periods
2:38 PM - 4:08 PM1:34 AM - 3:04 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 70.4°F
Average Humidity: 88%
Wind: 12.8 mph
UV Index: 2
Air Quality
Nitrogen Dioxide: 17.12 μg/m3
Sulphur Dioxide: 6.71 μg/m3
Ozone: 108.04 μg/m3
Astronomical
Sun Transit: 12:46 AM
Sunset: 8:19 PM
Daylight: 15 hrs 4 mins
Moon Transit: 9:30 PM
Moonset: 2:23 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 80.3%
Best Times for Fishing or Hunting
Major Periods
11:08 AM - 1:38 PM9:00 PM - 11:30 PM
Minor Periods
3:39 PM - 5:09 PM1:53 AM - 3:23 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 63.1°F
Average Humidity: 98%
Wind: 6.3 mph
UV Index: 0.9
Air Quality
Nitrogen Dioxide: 10.67 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 62.68 μg/m3
Astronomical
Sun Transit: 12:46 AM
Sunset: 8:20 PM
Daylight: 15 hrs 5 mins
Moon Transit: 10:13 PM
Moonset: 2:44 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.5%
Best Times for Fishing or Hunting
Major Periods
11:50 AM - 2:20 PM12:00 AM - 12:00 AM
Minor Periods
4:41 PM - 6:11 PM2:14 AM - 3:44 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 65.3°F
Average Humidity: 85%
Wind: 6.9 mph
UV Index: 1.2
Air Quality
Nitrogen Dioxide: 19.27 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 43.69 μg/m3
Astronomical
Sun Transit: 12:47 AM
Sunset: 8:20 PM
Daylight: 15 hrs 6 mins
Moon Transit: 10:58 PM
Moonset: 3:07 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 94.7%
Best Times for Fishing or Hunting
Major Periods
12:34 AM - 3:04 PM12:00 AM - 12:00 AM
Minor Periods
5:45 PM - 7:15 PM2:37 AM - 4:07 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 62.4°F
Average Humidity: 96%
Wind: 8.3 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 12:47 AM
Sunset: 8:21 PM
Daylight: 15 hrs 7 mins
Moon Transit: 11:47 PM
Moonset: 3:36 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.6%
Best Times for Fishing or Hunting
Major Periods
1:21 PM - 3:51 PM12:00 AM - 12:00 AM
Minor Periods
6:49 PM - 8:19 PM3:06 AM - 4:36 AM
Action Rating: 3 out of 5