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Chicago Heights, Illinois

City in Cook County, Illinois

Air quality

The air at Chicago Heights

Index 35, good, led by fine particles. Read at 10 PM from its reporting area, Hammond-Gary (IN), 16 miles off.

35Good
  • Fine particles (PM2.5)35Good-
  • Ozone13Good-
  • Coarse particles (PM10)31Good-

The days ahead

Good each day through Fri Oct 16, led by ozone. Yesterday measured 40, good.

Smoke, the next 46 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Chicago Heights

0.09 in in the last 24 hours, 0.26 in over the last 3 days, to Thu 9 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.09in
Last 3 days
0.26in

Visibility

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

Visibility stays 6 miles or more through Sat 7 PM, lowest 7 miles Thu 11 PM.

FriSat

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

What is measuring near here

The 6 instruments nearest Chicago Heights, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.7 miles away.

measured now4 instruments

measured daily2 instruments

Chicago Heights 1.2 WNWIL-CK-383

In a volunteer observer's own ground/0.7 mi away/669 ft/14 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Chicago/Lansing, drawn

The nearest airport reporting now, 6.4 mi from Chicago Heights, Illinois. From its report of Oct 15, 2026, 10:35 PM local time: 3 of its 6 sheets.

The sky

Overcast at 1,100 ft; the ceiling is 1,100 ft; visibility 10 mi or more.

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

The air

66.2 F with a dew point of 63.5 F, 91 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 600 ft up; the lowest cloud reported is at 1,100 ft.

Chart of the air at Chicago/Lansing: temperature 66.2 degrees Fahrenheit and dew point 63.5, 91 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 600 feet above the station, against the lowest cloud reported at 1,100 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT IGQFIG. B THE AIR AT CHICAGO/LANSINGTHE 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 F80 FSATURATES 600 FT ABOVE THE STATION, AT 62.8 FLOWEST CLOUD REPORTED, OVC 1,100 FTTEMPERATURE AND DEW POINT 66.2 F, 63.5 FRELATIVE HUMIDITY 91 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/Lansing, the airSTATION REPORT · ASOS IGQTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-IGQ-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west southwest (250 degrees) at 15 mph, gusting 20 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 29 mph.

Plan of the wind at Chicago/Lansing, north up: blowing from 250 degrees, the west southwest, at 15 miles an hour, gusting 20; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT IGQFIG. C THE WIND AT CHICAGO/LANSINGPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 250°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 15 MPH5FRESH BREEZE19GUST, 20 MPH6STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEChicago/Lansing, the windSTATION REPORT · ASOS IGQTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-IGQ-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Park Forest Water (PKFI2), 1.9 miles from here, read 15 Oct, 05:00. measured daily

Elsewhere in Illinois

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

Near Chicago Heights

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

Near Chicago Heights

River and lake gauges