Temperature
61 F at 12 AM; 66 F at its warmest, 1 PM Friday, and 58 F at its coolest, 1 AM Friday.
- Now
- 61F
- 12 AM
- Highest
- 66F
- 1 PM Friday
- Lowest
- 58F
- 1 AM Friday
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Airports/Connecticut/Groton New London Airport
Groton New London Airport, Connecticut
Medium airport in New London County, Connecticut60°
53°/41°
Overcast·
Feels like 60°·Gentle breeze 11 mph NW
Coming up. Rain is likely this morning, from about 6 AM (62%).
Now. Groton New London Airport is 60° and overcast at 12 AM. The dew point is 54°, so the air feels dry and comfortable. Gentle breeze from the northwest at 11 mph, gusting to 23 mph.
Today and tonight. The warmest of the day has passed; it cools to about 43° by 8 PM. Tonight falls to about 36° by 4 AM, under a mostly clear sky. Frost can form on the ground in sheltered spots.
The week. The warmest day ahead is Tuesday, near 63°, and the coolest tomorrow, near 55°. The days ahead look dry. Frost is possible tomorrow morning, a low of 35°.
The sky tonight. The sun sets at 6:04 PM. The Moon is a waxing crescent, 42% lit, and sets at 10:55 PM. The next full Moon is Monday, Oct 26. After dark, look for Saturn, bright in the east-southeast. A planet shines with a steady light where the stars around it twinkle. The Orionids meteor shower is active, peaking around Oct 21: at its peak, up to about 20 meteors an hour can be seen from a dark site. The sky is forecast to stay clear: a good night to look up. The day is 11 hours 3 minutes long, 2 minutes shorter than yesterday.
0UV Low
41Air quality
81%Humidity
99%Cloud
Now
12:00 AM
60feels60
10%
Today
Oct 17
5341
83%
15mph
Sun
Oct 18
5535
clear day
Mon
Oct 19
5940
mostly clear day
Tue
Oct 20
6342
15mph
Wed
Oct 21
5944
17mph
Thu
Oct 22
5942
19%
16mph
Fri
Oct 23
6243
17%
13mph
60°
53°41°
55°35°
59°40°
63°42°
59°44°
59°42°
62°43°
As of 12:00 AM in Groton New London Airport, Connecticut.
Air quality
The air at Groton New London Airport
Index 41, good, led by fine particles. Read at 12 AM from its reporting area, New London-Groton (CT), 1 mile off.
41Good
- Fine particles (PM2.5)41Good2.2 mi
- Coarse particles (PM10)13Good2.2 mi
The days ahead
Good each day through Mon Oct 19, led by fine particles. Yesterday measured 10, good.
GoodModerate
- 10YesterdayOct 16
- 11TodayOct 17
- 17SunOct 18
- 22MonOct 19
Smoke, the next 45 hours
No smoke near the ground through Sun 8 PM.
Precipitation
What has fallen at Groton New London Airport
0.22 in in the last 24 hours, and none in the 2 days before, to Fri 11 PM. Measured by radar and rain gauges, as water.
- Last 24 hours
- 0.22in
- Last 3 days
- 0.22in
Visibility
How far you can see at Groton New London Airport, the next 45 hours
Visibility stays 5 miles or more through Sun 8 PM, lowest 5 miles Sat 4 AM.
F
Now, today, and the week
Weather instrument stations by state
Airfield
- Code
- GON
- ICAO
- KGON
- IATA
- GON
- Field elevation
- 9 ft
- Serves
- Groton
- Kind
- Medium airport
- Scheduled service
- No
- Its own instrument
- GON
- Wind now
- From 330° at 13 mph, read 17 Oct, 00:20
Runways
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 05 / 23 | 5,000 ft | 150 ft | Asphalt | 34° / 214° | 6 mph head, on 05 | 12 mph from the left |
| 15 / 33 | 4,000 ft | 96 ft | Asphalt | 135° / 315° | 13 mph head, on 33 | 3 mph from the right |
Measured here
What the airfield's own instrument measured, the last 24 hours
Every hour from Groton/New London (GON), Groton New London Airport's own instrument, measure by measure, on the field's own clock.
Humidity and dew point
A dew point of 56 F, the air 84% saturated; the humidity ran from 64% at 3 AM Friday to 100% at 8 PM Friday.
- Dew point now
- 56F
- 12 AM
- Humidity now
- 84%
- Humidity, range
- 64 to 100%
How it is measured: Humidity variables, Field Book FB-WAT-002
Wind
Set aside: the gust read 32 mph in 10 reports in a row from 7 AM Friday, the mark of a sensor that has stuck, so none of that day's wind is counted.
- Now
- -
- Strongest
- -
- Highest gust
- -
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
Pressure
29.75 inHg at 12 AM, rising 0.06 inHg over 3 hours; 0.36 inHg lower than a day before.
- Now
- 29.75inHg
- 12 AM
- 3 hours
- +0.06inHg
- rising
- 24 hours
- -0.36inHg
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Visibility
Down to 0.5 miles at 7 PM Friday, under a mile for 2 hours; 10 miles or more now.
- Now
- 10+mi
- Lowest
- 0.5mi
- 7 PM Friday
- Hours under a mile
- 2
How it is measured: Fog types, Field Book FB-WAT-020
Cloud base
The lowest cloud base came down to 200 ft at 6 PM Friday; a base was reported in 24 of the hours.
- Lowest base now
- 800ft
- Lowest in 24 hours
- 200ft
- 6 PM Friday
- Hours with a base reported
- 24
How it is measured: Cloud classification, Field Book FB-SKY-001
Precipitation
0.21 in measured in the gauge, the most, 0.08 in, in the hour to 9 AM Friday.
- Last 24 hours
- 0.21in
- Wettest hour
- 0.08in
- 9 AM Friday
- Hours with some
- 9
How it is measured: ASOS, Field Book FB-INS-002
Groton/New London: every reading, the last 7 days, 30 days and the year, and how well it reports
What is measuring near here
The 5 instruments nearest Groton New London Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.3 miles away.
measured now3 instruments
At an airfield/0.3 mi away/10 ft/1 ft above here
temp, wind, gust, visibility, precip, pressure
GROTON - I95WB - In Median East CT US CTDOTCT004
Beside a road/3.0 mi away/105 ft/96 ft above here
temp, pavement temp, wind, visibility, precip
Pendleton Hill Brook AT Clarks FallsPHBC3
At a river or reservoir gauge/14.8 mi away/187 ft/178 ft above here
temp, wind, gust, humidity, pressure
measured daily2 instruments
Groton 2.9 ECT-NL-45
In a volunteer observer's own ground/1.6 mi away/19 ft/10 ft above here
precip, snowfall, snow depth
NorwichNRWC3
At a cooperative observer's station/13.6 mi away/33 ft/24 ft above here
snowfall, snow depth, precip, high, low
What the snow tracker reads here
Every instrument in this state
0in
Snow on the ground
Measured at Norwich (NRWC3), 13.6 miles from here, read 16 Oct, 08:00. measured daily
Elsewhere in Connecticut
20 places, each with its own forecast and its own instruments.
Bear MountainfeatureBridgeportcityConnecticut RiverfeatureDanburycityHartfordcityMiddletowncityMohawk Mountainski areaMount Southingtonski areaNew BritaincityNew HavencityNew LondoncityNorwalkcityNorwichcityOld SaybrooktownPowder Ridgeski areaSki Sundownski areaStamfordcityTorringtoncityWaterburycityWillimantictown
Near Groton New London Airport
The nearest places, each with its own forecast and the instruments nearest it.
- Poquonock Bridgecommunity, 1 mi
- Long Hillcommunity, 1 mi
- Grotoncity, 2 mi
- Groton Long Pointborough, 2 mi
- Noankcommunity, 3 mi
- New Londoncity, 3 mi
- Conning Towers-Nautilus Parkcommunity, 4 mi
- Waterfordcommunity, 5 mi
- Mysticcommunity, 5 mi
- Old Mysticcommunity, 5 mi
- Gales Ferrycommunity, 7 mi
- Stoningtonborough, 7 mi
Airports near Groton New London Airport
- Chester AirportSNC, 24 mi
- Windham AirportIJD, 29 mi
- Hartford Brainard AirportHFD, 42 mi
- Meriden Markham Municipal AirportMMK, 42 mi
- Tweed New Haven AirportHVN, 44 mi
- Robertson Field4B8, 49 mi
- Bradley International AirportBDL, 54 mi
- Igor I Sikorsky Memorial AirportBDR, 57 mi