Storm Station
Exton, Pennsylvania
58° 62°/57°
Light rain· Feels like 58°·Gentle breeze 12 mph NNW
Rain showers likely. Mostly cloudy, with a low around 56. North wind 10 to 15 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
0UV Low
30Air quality
83%Humidity
100%Cloud
Now
3:45 AM
58feels58
43%
now, rain light
Today
Sep 27
6257
95%
18mph
rain
Mon
Sep 28
6259
55%
14mph
rain light
Tue
Sep 29
7357
drizzle light
Wed
Sep 30
7760
overcast
Thu
Oct 1
8161
overcast
Fri
Oct 2
7761
11%
overcast
Sat
Oct 3
6151
13%
overcast
58°
62°57°
62°59°
73°57°
77°60°
81°61°
77°61°
61°51°

As of 3:45 AM in Exton, Pennsylvania.

What is measuring near here

The 6 instruments nearest Exton, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.6 miles away.

measured now4 instruments

Chester SpringsCHEP1

At a river or reservoir gauge/3.8 mi away/355 ft/32 ft above here

temp, wind, gust, humidity, pressure

Rank401of 543

West ChesterOQN

At an airfield/4.3 mi away/457 ft/134 ft above here

temp, wind, gust, visibility, precip, pressure

Rank432of 543

Avondale 2 N03761

At a climate reference station/14.8 mi away/400 ft/77 ft above here

temp, humidity, wind, solar, precip

Rank-

SR30 @ Business 30PA049

Beside a road/15.5 mi away/679 ft/356 ft above here

temp, pavement temp, wind, visibility, precip

Rank476of 543

measured daily2 instruments

West Chester 3.9 NNWPA-CH-65

In a volunteer observer's own ground/1.6 mi away/521 ft/198 ft above here

precip, snowfall, snow depth

Rank-

PhoenixvillePHXP1

At a cooperative observer's station/9.3 mi away/154 ft/169 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at West Chester, drawn

The nearest airport reporting now, 4.3 mi from Exton. From its report of Sep 27, 2026, 3:35 AM local time: 3 of its 6 sheets.

The sky

Broken at 1,000 ft, broken at 3,100 ft; the ceiling is 1,000 ft; visibility 10 mi or more.

Section of the sky over West Chester, height above the station to scale: broken cloud with its base at 1,000 feet, broken cloud with its base at 3,100 feet, the ceiling at 1,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OQNFIG. A THE SKY OVER WEST CHESTERSECTION, 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 STATION01,0002,0003,0004,0005,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETBKN 3,100 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYBKN 1,000 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 1,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEWest Chester, the skySTATION REPORT · ASOS OQNTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-OQN-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

57.2 F with a dew point of 53.6 F, 88 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 800 ft up; the lowest cloud reported is at 1,000 ft.

Chart of the air at West Chester: temperature 57.2 degrees Fahrenheit and dew point 53.6, 88 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 800 feet above the station, against the lowest cloud reported at 1,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OQNFIG. B THE AIR AT WEST CHESTERTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00040 F50 F60 F70 FSATURATES 800 FT ABOVE THE STATION, AT 52.7 FLOWEST CLOUD REPORTED, BKN 1,000 FTTEMPERATURE 57.2 FDEW POINT 53.6 FSPREAD 3.6 FRELATIVE HUMIDITY 88 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 POINTTITLEWest Chester, the airSTATION REPORT · ASOS OQNTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-OQN-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (330 degrees) at 12 mph, gusting 17 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 21 mph.

Plan of the wind at West Chester, north up: blowing from 330 degrees, the north northwest, at 12 miles an hour, gusting 17; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OQNFIG. C THE WIND AT WEST CHESTERPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 330°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 12 MPH4MODERATE BREEZE13GUST, 17 MPH5FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEWest Chester, the windSTATION REPORT · ASOS OQNTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-OQN-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of West Chester, in 6 sheets, each beside the Field Book plates that explain it

-in

Snow on the ground

Elsewhere in Pennsylvania

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

Near Exton

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