Storm Station
Oak Brook, Illinois
54°
Partly cloudy· Feels like 54°·Light breeze 6 mph ENE
Patchy fog. Mostly cloudy, with a low around 51. Northeast wind around 0 mph.
-UV
-Air quality
79%Humidity
38%Cloud

What is measuring near here

The 5 instruments nearest Oak Brook, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.2 miles away.

measured now3 instruments

WestchesterWBRI2

At a river or reservoir gauge/4.1 mi away/651 ft/29 ft below here

temp, wind, gust, humidity, pressure

Rank361of 417

Chicago OHareORD

At an airfield/8.8 mi away/673 ft/7 ft below here

temp, wind, gust, visibility, precip, pressure

Rank18of 417

Rakow @ Pyott RdIMC03

Beside a road/31.9 mi away/895 ft/215 ft above here

temp, pavement temp, wind, visibility, precip

Rank410of 417

measured daily2 instruments

Oak Brook 1.3 NWIL-DP-35

In a volunteer observer's own ground/1.2 mi away/712 ft/32 ft above here

precip, snowfall, snow depth

Rank-

Westmont (Hydro)WJWI2

At a cooperative observer's station/4.5 mi away/741 ft/61 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Chicago OHare, drawn

The nearest airport reporting now, 8.8 mi from Oak Brook. From its report of Sep 27, 2026, 2:51 AM local time: 3 of its 6 sheets.

The sky

A few clouds at 30,000 ft; visibility 10 mi or more.

Section of the sky over Chicago OHare, height above the station to scale: a few clouds cloud with its base at 30,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT ORDFIG. A THE SKY OVER CHICAGO OHARESECTION, 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 STATION05,00010,00015,00020,00025,00030,00035,00040,00045,000ETAGESLOWMIDDLEHIGHTHE STATIONTHE CEILOMETER READS TO 12,000 FTFEW 30,000 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYVISIBILITY, MILES: 10 MI OR MORE0510TITLEChicago OHare, the skySTATION REPORT · ASOS ORDTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-ORD-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-010, FB-SKY-011, FB-SKY-012

The air

51.0 F with a dew point of 48.0 F, 89 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 700 ft up; the lowest cloud reported is at 30,000 ft.

Chart of the air at Chicago OHare: temperature 51.0 degrees Fahrenheit and dew point 48.0, 89 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 700 feet above the station, against the lowest cloud reported at 30,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT ORDFIG. B THE AIR AT CHICAGO OHARETHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,00040 F50 F60 FSATURATES 700 FT ABOVE THE STATION, AT 47.3 FABOVE THIS SHEET: LOWEST CLOUD REPORTED, FEW 30,000 FTTEMPERATURE 51.0 FDEW POINT 48.0 FSPREAD 3.0 FRELATIVE HUMIDITY 89 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 OHare, the airSTATION REPORT · ASOS ORDTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-ORD-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Chicago OHare, north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT ORDFIG. C THE WIND AT CHICAGO OHAREPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEChicago OHare, the windSTATION REPORT · ASOS ORDTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-ORD-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

-in

Snow on the ground

Elsewhere in Illinois

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

Near Oak Brook

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