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
View Nearby Locations View All Connecticut Locations View Locations Near Me
Sponsored Content
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: 97%
Feels Like: 56.9°F
Wind: NE 6.5 mph
Wind Gusts: 11.7 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0
Five Day Weather Forecast

Tue
H: 69°F
L: 60°F

Wed
H: 61°F
L: 56°F

Thu
H: 71°F
L: 60°F

Fri
H: 79°F
L: 62°F

Sat
H: 67°F
L: 52°F
Air Quality
Nitrogen Dioxide: 11.1 μg/m3
Sulphur Dioxide: 2.22 μg/m3
Ozone: 73 μg/m3
Astronomical
Sun Transit: 12:42 AM
Sunset: 6:55 PM
Daylight: 12 hrs 25 mins
Moon Transit: 8:37 AM
Moonset: 4:33 PM
Moon Phase: Last Quarter
Moon Illumination: 23.8%
Best Times for Fishing or Hunting
Major Periods
8:07 AM - 10:37 AM12:00 AM - 12:00 AM
Minor Periods
4:03 PM - 5:33 PM12:02 AM - 1:32 AM
Action Rating: 2 out of 5
Rip Current Statement issued September 16 at 1:58AM EDT until September 16 at 8:00PM EDT by NWS Upton NY
Effective: Tue September 16, 2025, 1:58 AM
Expires: Tue September 16, 2025, 8:00 PM
* WHAT...Dangerous rip currents expected. * WHERE...Kings (Brooklyn), Southwest Suffolk, Southeast Suffolk, Southern Queens and Southern Nassau Counties. * WHEN...From 6 AM EDT this morning through this evening. * IMPACTS...Life-threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water.
If you enter the surf zone, always have a flotation device with you and swim near a lifeguard. If caught in a rip current, relax and float, and do not swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and yell or wave for help.
Weather Forecast
Average Temperature: 64.5°F
Average Humidity: 85%
Wind: 11.6 mph
UV Index: 1.3
Air Quality
Nitrogen Dioxide: 6.13 μg/m3
Sulphur Dioxide: 1.67 μg/m3
Ozone: 86.8 μg/m3
Astronomical
Sun Transit: 12:42 AM
Sunset: 6:55 PM
Daylight: 12 hrs 25 mins
Moon Transit: 8:37 AM
Moonset: 4:33 PM
Moon Phase: Last Quarter
Moon Illumination: 23.8%
Best Times for Fishing or Hunting
Major Periods
8:07 AM - 10:37 AM12:00 AM - 12:00 AM
Minor Periods
4:03 PM - 5:33 PM12:02 AM - 1:32 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 58.9°F
Average Humidity: 93%
Wind: 10.1 mph
UV Index: 1.1
Air Quality
Nitrogen Dioxide: 4.6 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 82.92 μg/m3
Astronomical
Sun Transit: 12:42 AM
Sunset: 6:53 PM
Daylight: 12 hrs 22 mins
Moon Transit: 9:32 AM
Moonset: 5:08 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.9%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:02 AM - 11:32 AM
Minor Periods
4:38 PM - 6:08 PM1:14 AM - 2:44 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 64.5°F
Average Humidity: 87%
Wind: 9.2 mph
UV Index: 1.3
Air Quality
Nitrogen Dioxide: 10.74 μg/m3
Sulphur Dioxide: 1.81 μg/m3
Ozone: 81.48 μg/m3
Astronomical
Sun Transit: 12:41 AM
Sunset: 6:52 PM
Daylight: 12 hrs 20 mins
Moon Transit: 10:22 AM
Moonset: 5:36 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.8%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:52 AM - 12:22 AM
Minor Periods
5:06 PM - 6:36 PM2:26 AM - 3:56 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 69.9°F
Average Humidity: 65%
Wind: 10.1 mph
UV Index: 1.4
Air Quality
Nitrogen Dioxide: 28.59 μg/m3
Sulphur Dioxide: 4.26 μg/m3
Ozone: 64.15 μg/m3
Astronomical
Sun Transit: 12:41 AM
Sunset: 6:50 PM
Daylight: 12 hrs 17 mins
Moon Transit: 11:08 AM
Moonset: 5:59 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.8%
Best Times for Fishing or Hunting
Major Periods
12:45 AM - 3:15 AM10:38 AM - 1:08 PM
Minor Periods
5:29 PM - 6:59 PM3:36 AM - 5:06 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 58.5°F
Average Humidity: 55%
Wind: 11.2 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 12:41 AM
Sunset: 6:48 PM
Daylight: 12 hrs 14 mins
Moon Transit: 11:52 AM
Moonset: 6:20 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.3%
Best Times for Fishing or Hunting
Major Periods
1:30 AM - 4:00 AM11:22 AM - 1:52 PM
Minor Periods
5:50 PM - 7:20 PM4:43 AM - 6:13 AM
Action Rating: 3 out of 5