Storm Station
Derby, Connecticut
57°
Rain· Feels like 57°·Fresh breeze 21 mph NNE
Rain showers. Cloudy, with a low around 57. North wind around 25 mph, with gusts as high as 43 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
-UV
-Air quality
90%Humidity
94%Cloud

What is measuring near here

The 5 instruments nearest Derby, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.6 miles away.

measured now3 instruments

New Haven/TweedHVN

At an airfield/10.7 mi away/13 ft/255 ft below here

temp, wind, gust, visibility, precip, pressure

Rank1of 128

New Haven Tweed APHVN

At a river or reservoir gauge/10.7 mi away/6 ft/262 ft below here

temp, wind, gust, humidity, pressure

Rank-

measured daily2 instruments

Derby 1.0 SSECT-NH-102

In a volunteer observer's own ground/0.6 mi away/109 ft/159 ft below here

precip, snowfall, snow depth

Rank-

AnsoniaANSC3

At a cooperative observer's station/1.9 mi away/177 ft/91 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at New Haven/Tweed, drawn

The nearest airport reporting now, 10.7 mi from Derby. From its report of Sep 27, 2026, 5:53 AM local time: 3 of its 6 sheets.

The sky

Scattered at 1,300 ft, broken at 1,800 ft, overcast at 2,500 ft; the ceiling is 1,800 ft; visibility 3 mi.

Section of the sky over New Haven/Tweed, height above the station to scale: scattered cloud with its base at 1,300 feet, broken cloud with its base at 1,800 feet, overcast cloud with its base at 2,500 feet, the ceiling at 1,800 feet, and visibility of 3 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HVNFIG. A THE SKY OVER NEW HAVEN/TWEEDSECTION, 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 STATION05001,0001,5002,0002,5003,0003,5004,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 2,500 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 1,800 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYSCT 1,300 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 1,800 FTVISIBILITY, MILES: 3 MI0510TITLENew Haven/Tweed, the skySTATION REPORT · ASOS HVNTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-HVN-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

59.0 F with a dew point of 57.0 F, 93 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 500 ft up; the lowest cloud reported is at 1,300 ft.

Chart of the air at New Haven/Tweed: temperature 59.0 degrees Fahrenheit and dew point 57.0, 93 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 500 feet above the station, against the lowest cloud reported at 1,300 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HVNFIG. B THE AIR AT NEW HAVEN/TWEEDTHE 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 FSATURATES 500 FT ABOVE THE STATION, AT 56.5 FLOWEST CLOUD REPORTED, SCT 1,300 FTTEMPERATURE AND DEW POINT 59.0 F, 57.0 FRELATIVE HUMIDITY 93 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 POINTTITLENew Haven/Tweed, the airSTATION REPORT · ASOS HVNTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-HVN-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northeast (20 degrees) at 26 mph, gusting 38 mph: force 6, a strong breeze on the Beaufort scale. The strongest gust today was 49 mph.

Plan of the wind at New Haven/Tweed, north up: blowing from 20 degrees, the north northeast, at 26 miles an hour, gusting 38; beside it the Beaufort scale from calm to hurricane force, force 6, strong breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HVNFIG. C THE WIND AT NEW HAVEN/TWEEDPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 20°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE25NOW, 26 MPH7NEAR GALE32GUST, 38 MPH8GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLENew Haven/Tweed, the windSTATION REPORT · ASOS HVNTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-HVN-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

-in

Snow on the ground

Elsewhere in Connecticut

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

Near Derby

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