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Winfield, Illinois

Village in DuPage County, Illinois

Air quality

The air at Winfield

Index 16, good, led by fine particles. Read at 11 PM from its reporting area, Aurora and Elgin (IL), 15 miles off.

16Good
  • Fine particles (PM2.5)16Good7.5 mi
  • Ozone9Good7 ppb6.1 mi

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 28, good.

Smoke, the next 44 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Winfield

0.87 in in the last 24 hours, 1.15 in over the last 3 days, to Thu 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.87in
Last 3 days
1.15in

Visibility

How far you can see at Winfield, the next 44 hours

Visibility stays 9 miles or more through Sat 7 PM, lowest 9 miles Fri 12 AM.

FriSat

On the radar over Winfield, IllinoisReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 7 instruments nearest Winfield, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.4 miles away.

measured now5 instruments

measured daily2 instruments

Glen Ellyn 4SGLEI2

At a cooperative observer's station/5.9 mi away/679 ft/83 ft below here

snowfall, snow depth, precip, high, low

Rank936of 1,393

Station report

The weather at Chicago/Dupage, drawn

The nearest airport reporting now, 5.5 mi from Winfield, Illinois. From its report of Oct 15, 2026, 11:18 PM local time: 3 of its 6 sheets.

The sky

Broken at 1,600 ft, overcast at 2,100 ft; the ceiling is 1,600 ft; visibility 10 mi or more.

Section of the sky over Chicago/Dupage, height above the station to scale: broken cloud with its base at 1,600 feet, overcast cloud with its base at 2,100 feet, the ceiling at 1,600 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DPAFIG. A THE SKY OVER CHICAGO/DUPAGESECTION, 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 STATION05001,0001,5002,0002,5003,0003,500ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 2,100 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 1,600 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 1,600 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEChicago/Dupage, the skySTATION REPORT · ASOS DPATYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-DPA-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

58.0 F with a dew point of 54.0 F, 87 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 900 ft up; the lowest cloud reported is at 1,600 ft.

Chart of the air at Chicago/Dupage: temperature 58.0 degrees Fahrenheit and dew point 54.0, 87 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 900 feet above the station, against the lowest cloud reported at 1,600 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DPAFIG. B THE AIR AT CHICAGO/DUPAGETHE 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 900 FT ABOVE THE STATION, AT 53.1 FLOWEST CLOUD REPORTED, BKN 1,600 FTTEMPERATURE 58.0 FDEW POINT 54.0 FSPREAD 4.0 FRELATIVE HUMIDITY 87 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 POINTTITLEChicago/Dupage, the airSTATION REPORT · ASOS DPATYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-DPA-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west (280 degrees) at 18 mph, gusting 28 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 31 mph.

Plan of the wind at Chicago/Dupage, north up: blowing from 280 degrees, the west, at 18 miles an hour, gusting 28; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DPAFIG. C THE WIND AT CHICAGO/DUPAGEPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 280°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 18 MPH5FRESH BREEZE196STRONG BREEZE25GUST, 28 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEChicago/Dupage, the windSTATION REPORT · ASOS DPATYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-DPA-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Chicago/Dupage, in 6 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in Illinois

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

Near Winfield

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

Near Winfield

River and lake gauges