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Groton, CT Weather

Current WeatherGroton · 9:12 PM EDT
82° | 61°
66°F
Feels like 63°
Sunny
WindSW 9 mph · Gusts 10 mph
Precip5% · –
Humidity74% · Dew point 57°
UV index7 High
Air Quality45 Good
Pressure30.18 inHg
Visibility6 mi
Sunrise / Sunset6:11 AM · 7:26 PM · 13h 15m

Weather map — Groton

Full radar →
Now
66°
7%
9 mph
22:00
64°
7%
8 mph
23:00
63°
8%
8 mph
00:00
61°
17%
8 mph
01:00
68°
22%
7 mph
02:00
68°
9%
8 mph
03:00
67°
9%
7 mph
04:00
67°
22%
7 mph
05:00
67°
11%
6 mph
06:00
67°
9%
6 mph
07:00
68°
23%
6 mph
08:00
69°
22%
8 mph
09:00
71°
18%
10 mph
10:00
72°
8%
10 mph
11:00
72°
13%
10 mph
12:00
73°
20%
11 mph
13:00
73°
18%
10 mph
14:00
73°
18%
10 mph
15:00
74°
16%
9 mph
16:00
75°
12%
9 mph
17:00
75°
18%
13 mph
18:00
74°
14%
17 mph
19:00
73°
16%
17 mph
20:00
73°
17%
16 mph

Today · Sat 8/29

High 82°
5% / –

Sunny. Winds N at 15 mph.

Tonight · Sat 8/29

Low 61°
7% / –

Sunny. Winds SW at 8 mph.

Tomorrow · Sun 8/30

75° | 61°
27% / 0.01 in

Mostly cloudy. Winds SW at 17 mph.

7-day trend

Groton · temperature + precipitation

10-day forecast

Updated 9:12 PM

Details & indices

Wind
9 mph SW
Gusts 10 mph
Humidity
74%
Dew point 57°
Pressure
30.18 inHg
Rising
UV index
7 — High
High today
Air Quality
Good
AQI 45 · US EPA
Allergy
None detected
Visibility
6 mi
Clear view
Allergy — Groton

🌿 Conditions right now

View all →
Birch
None
Grass
None
Oak
None
Alder
None
Hazel
None
Mugwort
None
Ragweed
None

Sun & moon

Sunrise6:11 AM
Sunset7:26 PM
Length of day13h 15m
Moonrise8:00 PM
Moonset7:38 AM
Next full moonSep 26 Harvest Moon
Latitude41.3501°N
Longitude-72.0784°E

Water temps nearby

View all →
Misquamicut (16 mi)71°
Montauk (22 mi)72°
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Great
Line-drying weather
Grilling
Great
Fire up the grill
Running
Fair
Lace up outside
Patio
Great
Dinner outdoors
Nearby places in {{REGION}}
🌤️
Bridgeport
Data sources · Saturday, August 29
Where the Groton forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 41.3501°N, -72.0784°.
NBM + global weather models
Updated: 9:12 PM
Weather in Groton
Over the next 10 days Groton tops out around 82° (Saturday) and dips to 61° on the coolest night (Saturday). Roughly 1.4 in of rain falls over the period, with Tuesday the most likely wet day (91%). Hold onto the patio furniture Sunday: gusts could hit 28 mph. No active NWS alerts at the moment — quiet on the hazards front. Right now Groton is about 19° cooler than nearby Providence. Longer view: classic Northeast mix — nor'easters, humid spells and a glorious fall.
Groton, CT · Elev 79 ft · 41.35°N, 72.08°W · Connecticut · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 9:12 PM