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Niantic, Connecticut

Community in New London County, Connecticut

Air quality

The air at Niantic

Index 16, good, led by fine particles. Read at 2 PM from its reporting area, New London-Groton (CT), 9 miles off.

16Good
  • Fine particles (PM2.5)16Good6.5 mi
  • Coarse particles (PM10)6Good6.5 mi

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 10, good.

Smoke, the next 43 hours

No smoke near the ground through Sun 8 AM.

FriSatSun

Precipitation

What has fallen at Niantic

0.18 in in the last 24 hours, and none in the 2 days before, to Fri 1 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.18in
Last 3 days
0.18in

Visibility

How far you can see at Niantic, the next 43 hours

Dense fog: visibility falls to 0.2 miles Fri 2 PM, under a mile for 2 hours.

FriSatSun

On the radar over Niantic, ConnecticutReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Niantic, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.1 miles away.

measured now4 instruments

New LondonNDBC-NLHC3

At a river or reservoir gauge/6.3 mi away/-/- ft from here

temp, wind, gust, humidity, pressure

Rank326of 375

measured daily2 instruments

Niantic 1.1 SWCT-NL-32

In a volunteer observer's own ground/1.1 mi away/12 ft/4 ft above here

precip, snowfall, snow depth

Rank41of 375

NorwichNRWC3

At a cooperative observer's station/15.6 mi away/33 ft/25 ft above here

snowfall, snow depth, precip, high, low

Rank29of 375

Station report

The weather at Groton/New London, drawn

The nearest airport reporting now, 7.8 mi from Niantic, Connecticut. From its report of Oct 16, 2026, 1:15 PM local time: 3 of its 6 sheets.

The sky

Overcast at 500 ft; the ceiling is 500 ft; visibility 10 mi or more.

Section of the sky over Groton/New London, height above the station to scale: overcast cloud with its base at 500 feet, the ceiling at 500 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GONFIG. A THE SKY OVER GROTON/NEW LONDONSECTION, HEIGHT ABOVE THE STATION TO SCALE, EACH LAYER AT THE HEIGHT OF ITS BASE AS REPORTED; COVER IN EIGHTHS OF THE SKY; TOPS NOT MEASUREDFT ABOVE THE STATION05001,0001,5002,0002,5003,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 500 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 500 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEGroton/New London, the skySTATION REPORT · ASOS GONTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-GON-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

66.0 F with a dew point of 65.0 F, 97 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 200 ft up; the lowest cloud reported is at 500 ft.

Chart of the air at Groton/New London: temperature 66.0 degrees Fahrenheit and dew point 65.0, 97 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 200 feet above the station, against the lowest cloud reported at 500 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GONFIG. B THE AIR AT GROTON/NEW LONDONTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00050 F60 F70 F80 FSATURATES 200 FT ABOVE THE STATION, AT 64.7 FLOWEST CLOUD REPORTED, OVC 500 FTTEMPERATURE AND DEW POINT 66.0 F, 65.0 FRELATIVE HUMIDITY 97 PER CENTTHE AIR COOLS ABOUT 5.4 F EACH 1,000 FT IT RISES, AND ITS DEW POINT ABOUT 1 FSOLID: THE LIFTED AIR'S TEMPERATURE; DASHED: ITS DEW POINTTITLEGroton/New London, the airSTATION REPORT · ASOS GONTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-GON-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south southwest (210 degrees) at 13 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 32 mph.

Plan of the wind at Groton/New London, north up: blowing from 210 degrees, the south southwest, at 13 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GONFIG. C THE WIND AT GROTON/NEW LONDONPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 210°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 13 MPH5FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEGroton/New London, the windSTATION REPORT · ASOS GONTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-GON-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Groton/New London, in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Norwich (NRWC3), 15.6 miles from here, read 16 Oct, 08:00. measured daily

Elsewhere in Connecticut

20 places, each with its own forecast and its own instruments.

Near Niantic

The nearest places, each with its own forecast and the instruments nearest it.

Near Niantic

River and lake gauges