Water Temperature of the Connecticut River in Suffield, CT

Current Water Temperature

59.2°F

Measurement Time: Monday, May 18, 2026, 7:00 PM EDT

Temperature Locations

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Local Points of Interest

Windsor Locks Canal State Park; Enfield-Suffield Veterans Bridge; Thompsonville, CT; Enfield, CT

Connecticut River

Station Name: CONNECTICUT RIVER AT THOMPSONVILLE, CT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 30 feet

Nearest Address:
1298 Canal Rd
Suffield, CT 06078
Hartford County

GPS Coordinates: 41.9873186, -72.6053669

Nearby Water Temperatures

North Branch Park River, Hartford, CT (15 mi)
West Branch Farmington River, Riverton, CT (21.2 mi)
Natchaug River, Chaplin, CT (28.3 mi)
Connecticut River, Middletown, CT (30.9 mi)
French River, North Grosvenordale, CT (36.2 mi)
Yantic River, Norwich, CT (38.7 mi)
Quinnipiac River, Wallingford, CT (39 mi)
Ware River, Barre, MA (39.3 mi)
Eightmile River, East Haddam, CT (40.2 mi)
East Branch Eightmile River, Lyme, CT (41.1 mi)
Naugatuck River, Beacon Falls, CT (44.4 mi)
Windsor Brook, Foster, RI (46.6 mi)
Ponaganset River, South Foster, RI (47.7 mi)
Quinapoxet River, Holden, MA (47.9 mi)
Dolly Cole Brook, Foster, RI (47.9 mi)

Weather for Suffield, Connecticut

Current Weather

73°F
Clear
Clear
76.8°F
72.8°F
66%
S 5.6 mph
11.7 mph
70.2°F
60.1°F
0 in
0%
9 mi
1019 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 99°F
L: 68°F
Patchy rain nearby
Wed
H: 90°F
L: 56°F
Partly Cloudy
Thu
H: 65°F
L: 48°F
Sunny
Fri
H: 69°F
L: 41°F
Patchy rain nearby
Sat
H: 68°F
L: 49°F

Air Quality

PM2.5: 13.45 μg/m3
PM10: 16.05 μg/m3
Carbon Monoxide: 171.85 μg/m3
Nitrogen Dioxide: 11.35 μg/m3
Sulphur Dioxide: 2.55 μg/m3
Ozone: 70 μg/m3

Astronomical

Sunrise: 5:26 AM
Sun Transit: 12:46 AM
Sunset: 8:08 PM
Daylight: 14 hrs 42 mins
Moonrise: 7:38 AM
Moon Transit: 3:50 PM
Moonset: 11:55 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.4%

Best Times for Fishing or Hunting

Major Periods

5:13 AM - 7:43 AM
3:20 PM - 5:50 PM

Minor Periods

12:00 AM - 12:00 AM
7:08 AM - 8:38 AM

Action Rating: 3 out of 5

Heat Advisory issued May 18 at 12:57PM EDT until May 20 at 8:00PM EDT by NWS Boston/Norton MA

Effective: Mon May 18, 2026, 12:57 PM
Expires: Tue May 19, 2026, 7:00 AM

* WHAT...Heat index values up to 96 expected. * WHERE...Much of Southern New England, except for the eastern slopes of the Berkshires, the Rhode Island and Massachusetts South Coast, Cape Cod and the Islands. * WHEN...From 11 AM Tuesday to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures, a moderate degree of humidity with little relief Tuesday night may cause heat illnesses. * ADDITIONAL DETAILS...This is the first multi-day period of hot temperatures. Those not yet accustomed to hot temperatures with a moderate degree of humidity should take appropriate heat-related precautions.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives, neighbors and pets. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.


Air Quality Alert issued May 18 at 12:19PM EDT by NWS Boston/Norton MA

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Mon May 18, 2026, 12:19 PM
Expires: Mon May 18, 2026, 11:00 PM

The Massachusetts Department of Environmental Protection has issued an Air Quality Alert for Ground Level Ozone, until 11 PM EDT this evening. An Air Quality Alert means that Ground Level Ozone concentrations within the region may approach or exceed levels that are Unhealthy for Sensitive Groups. Air is unhealthy for sensitive children and adults, such as those with asthma, lung or heart disease, and older adults. Sensitive children and adults should limit prolonged outdoor activity. For additional information, please visit the Massachusetts Department of Environmental Protection website at: https://mass.gov/dep/massair/forecast


Air Quality Alert issued May 18 at 11:18AM EDT by NWS Boston/Norton MA

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Mon May 18, 2026, 11:18 AM
Expires: Mon May 18, 2026, 11:00 PM

The Massachusetts Department of Environmental Protection has issued an Air Quality Alert for Ground Level Ozone, until 11 PM EDT this evening. An Air Quality Alert means that Ground Level Ozone concentrations within the region may approach or exceed levels that are Unhealthy for Sensitive Groups. Air is unhealthy for sensitive children and adults, such as those with asthma, lung or heart disease, and older adults. Sensitive children and adults should limit prolonged outdoor activity. For additional information, please visit the Massachusetts Department of Environmental Protection website at: https://mass.gov/dep/massair/forecast


Air Quality Alert issued May 18 at 9:43AM EDT by NWS Boston/Norton MA

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Mon May 18, 2026, 9:43 AM
Expires: Tue May 19, 2026, 12:00 AM

The Massachusetts Department of Environmental Protection has issued an Air Quality Alert for Ground Level Ozone, until 11 PM EDT this evening. An Air Quality Alert means that Ground Level Ozone concentrations within the region may approach or exceed levels that are Unhealthy for Sensitive Groups. Air is unhealthy for sensitive children and adults, such as those with asthma, lung or heart disease, and older adults. Sensitive children and adults should limit prolonged outdoor activity. For additional information, please visit the Massachusetts Department of Environmental Protection website at: https://mass.gov/dep/massair/forecast


Air Quality Alert issued May 18 at 12:19PM EDT by NWS Boston/Norton MA

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Mon May 18, 2026, 12:19 PM
Expires: Mon May 18, 2026, 11:00 PM

The Connecticut Department of Environmental Protection has issued an Air Quality Action Day for Ground Level Ozone, until 11 PM EDT this evening. An Air Quality Action day means that Ground Level Ozone concentrations within the region may approach or exceed unhealthy standards. For additional information, please visit the Connecticut Department of Energy and Environmental Protection website at: https://portal.ct.gov/deep


Tuesday, May 19, 2026

Weather Forecast

Sunny
98.6°F
67.8°F
78.8°F
62%
0 in
0%
0%
15 mph
8.7


Air Quality

AQI: 1 - Good
PM2.5: 12.87 μg/m3
PM10: 15.05 μg/m3
Carbon Monoxide: 191.89 μg/m3
Nitrogen Dioxide: 7.57 μg/m3
Sulphur Dioxide: 2.15 μg/m3
Ozone: 109.4 μg/m3

Astronomical

Sunrise: 5:26 AM
Sun Transit: 12:46 AM
Sunset: 8:08 PM
Daylight: 14 hrs 42 mins
Moonrise: 7:38 AM
Moon Transit: 3:50 PM
Moonset: 11:55 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.4%

Best Times for Fishing or Hunting

Major Periods

5:13 AM - 7:43 AM
3:20 PM - 5:50 PM

Minor Periods

12:00 AM - 12:00 AM
7:08 AM - 8:38 AM

Action Rating: 3 out of 5

Wednesday, May 20, 2026

Weather Forecast

Patchy rain nearby
90.4°F
56°F
73.2°F
65%
0.06 in
88%
0%
14.3 mph
8.6


Air Quality

AQI: 1 - Good
PM2.5: 8.83 μg/m3
PM10: 10.21 μg/m3
Carbon Monoxide: 179.01 μg/m3
Nitrogen Dioxide: 8.38 μg/m3
Sulphur Dioxide: 1.87 μg/m3
Ozone: 88.68 μg/m3

Astronomical

Sunrise: 5:25 AM
Sun Transit: 12:47 AM
Sunset: 8:09 PM
Daylight: 14 hrs 44 mins
Moonrise: 8:55 AM
Moon Transit: 4:52 PM
Moonset: 12:55 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%

Best Times for Fishing or Hunting

Major Periods

6:17 AM - 8:47 AM
4:22 PM - 6:52 PM

Minor Periods

8:25 AM - 9:55 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, May 21, 2026

Weather Forecast

Partly Cloudy
65°F
48°F
55.6°F
54%
0 in
0%
0%
7.4 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 2.33 μg/m3
PM10: 2.51 μg/m3
Carbon Monoxide: 137.31 μg/m3
Nitrogen Dioxide: 3.49 μg/m3
Sulphur Dioxide: 1.12 μg/m3
Ozone: 73.56 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 12:47 AM
Sunset: 8:10 PM
Daylight: 14 hrs 46 mins
Moonrise: 10:13 AM
Moon Transit: 5:48 PM
Moonset: 12:38 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.2%

Best Times for Fishing or Hunting

Major Periods

7:16 AM - 9:46 AM
5:18 PM - 7:48 PM

Minor Periods

9:43 AM - 11:13 AM
12:08 AM - 1:38 AM

Action Rating: 3 out of 5

Friday, May 22, 2026

Weather Forecast

Sunny
68.9°F
40.7°F
55.2°F
49%
0 in
0%
0%
7.2 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 4.76 μg/m3
PM10: 4.97 μg/m3
Carbon Monoxide: 165.85 μg/m3
Nitrogen Dioxide: 9.17 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 59.92 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 12:47 AM
Sunset: 8:11 PM
Daylight: 14 hrs 48 mins
Moonrise: 11:28 AM
Moon Transit: 6:39 PM
Moonset: 1:11 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

8:09 AM - 10:39 AM
6:09 PM - 8:39 PM

Minor Periods

10:58 AM - 12:28 AM
12:41 AM - 2:11 AM

Action Rating: 3 out of 5

Saturday, May 23, 2026

Weather Forecast

Patchy rain nearby
67.5°F
49.3°F
55.6°F
69%
0.08 in
73%
0%
10.3 mph
3


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 12:47 AM
Sunset: 8:12 PM
Daylight: 14 hrs 50 mins
Moonrise: 12:40 AM
Moon Transit: 7:26 PM
Moonset: 1:37 AM
Moon Phase: First Quarter
Moon Illumination: 44.4%

Best Times for Fishing or Hunting

Major Periods

8:57 AM - 11:27 AM
6:56 PM - 9:26 PM

Minor Periods

12:10 AM - 1:40 PM
1:07 AM - 2:37 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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