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West Chicago, Illinois

City in DuPage County, Illinois

Air quality

The air at West Chicago

Index 14, good, led by ozone. Read at 4 AM from its reporting area, Aurora and Elgin (IL), 13 miles off.

14Good
  • Fine particles (PM2.5)8Good-
  • Ozone14Good-

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 23, good.

Smoke, the next 46 hours

No smoke near the ground through Sun 1 AM.

FriSat

Precipitation

What has fallen at West Chicago

0.81 in in the last 24 hours, 1.15 in over the last 3 days, to Fri 3 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.81in
Last 3 days
1.15in

Visibility

How far you can see at West Chicago, the next 46 hours

Visibility stays 9 miles or more through Sun 1 AM, lowest 10 miles Fri 7 AM.

FriSat

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

What is measuring near here

The 7 instruments nearest West Chicago, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.5 miles away.

measured now5 instruments

measured daily2 instruments

West Chicago 2.3 ESEIL-DP-4

In a volunteer observer's own ground/1.3 mi away/768 ft/7 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Chicago/Dupage, drawn

The nearest airport reporting now, 2.8 mi from West Chicago, Illinois. From its report of Oct 16, 2026, 4:27 AM local time: 3 of its 6 sheets.

The sky

Scattered at 2,600 ft, overcast at 3,200 ft; the ceiling is 3,200 ft; visibility 10 mi or more.

Section of the sky over Chicago/Dupage, height above the station to scale: scattered cloud with its base at 2,600 feet, overcast cloud with its base at 3,200 feet, the ceiling at 3,200 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 STATION01,0002,0003,0004,0005,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 3,200 FTOVERCAST, 8 EIGHTHS OF THE SKYSCT 2,600 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 3,200 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

52.0 F with a dew point of 45.0 F, 77 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,600 ft up; the lowest cloud reported is at 2,600 ft.

Chart of the air at Chicago/Dupage: temperature 52.0 degrees Fahrenheit and dew point 45.0, 77 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,600 feet above the station, against the lowest cloud reported at 2,600 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 STATION01,0002,0003,0004,00030 F40 F50 F60 FSATURATES 1,600 FT ABOVE THE STATION, AT 43.4 FLOWEST CLOUD REPORTED, SCT 2,600 FTTEMPERATURE 52.0 FDEW POINT 45.0 FSPREAD 7.0 FRELATIVE HUMIDITY 77 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-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (290 degrees) at 15 mph, gusting 23 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 36 mph.

Plan of the wind at Chicago/Dupage, north up: blowing from 290 degrees, the west northwest, at 15 miles an hour, gusting 23; 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 290°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 15 MPH5FRESH BREEZE19GUST, 23 MPH6STRONG BREEZE257NEAR 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

0in

Snow on the ground

Measured at Batavia (Hydro) (BATI2), 7.3 miles from here, read 15 Oct, 06:00. measured daily

Elsewhere in Illinois

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

Near West Chicago

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

Near West Chicago

River and lake gauges