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Lockport, Illinois

City in Will County, Illinois

Air quality

The air at Lockport

Index 33, good, led by fine particles. Read at 10 PM from its reporting area, South and West Suburbs (Chicago) (IL), 12 miles off.

33Good
  • Fine particles (PM2.5)33Good5.8 mi
  • Ozone11Good6 ppb6.4 mi

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 48, good.

Smoke, the next 45 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Lockport

0.61 in in the last 24 hours, 0.69 in over the last 3 days, to Thu 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.61in
Last 3 days
0.69in

Visibility

How far you can see at Lockport, the next 45 hours

Visibility stays 8 miles or more through Sat 7 PM, lowest 8 miles Thu 11 PM.

FriSat

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

What is measuring near here

The 6 instruments nearest Lockport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.0 miles away.

measured now4 instruments

Homer GlenHGPI2

At a river or reservoir gauge/3.8 mi away/773 ft/101 ft above here

temp, wind, gust, humidity, pressure

Rank490of 1,393

measured daily2 instruments

Lockport 0.2 WSWIL-WL-188

In a volunteer observer's own ground/1.0 mi away/658 ft/14 ft below here

precip, snowfall, snow depth

Rank-

Romeoville WFOLOTI2

At a cooperative observer's station/3.0 mi away/659 ft/13 ft below here

snowfall, snow depth, precip, high, low

Rank27of 1,393

Station report

The weather at Romeoville/Chi, drawn

The nearest airport reporting now, 3.7 mi from Lockport, Illinois. From its report of Oct 15, 2026, 10:55 PM local time: 3 of its 6 sheets.

The sky

Scattered at 1,000 ft, overcast at 1,600 ft; the ceiling is 1,600 ft; visibility 10 mi or more.

Section of the sky over Romeoville/Chi, height above the station to scale: scattered cloud with its base at 1,000 feet, overcast cloud with its base at 1,600 feet, the ceiling at 1,600 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT LOTFIG. A THE SKY OVER ROMEOVILLE/CHISECTION, 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 1,600 FTOVERCAST, 8 EIGHTHS OF THE SKYSCT 1,000 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 1,600 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLERomeoville/Chi, the skySTATION REPORT · ASOS LOTTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-LOT-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

60.8 F with a dew point of 60.8 F, 100 per cent relative humidity. The air is saturated at the ground; the lowest cloud reported is at 1,000 ft.

Chart of the air at Romeoville/Chi: temperature 60.8 degrees Fahrenheit and dew point 60.8, 100 per cent relative humidity; the air saturated at the ground, against the lowest cloud reported at 1,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT LOTFIG. B THE AIR AT ROMEOVILLE/CHITHE 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 FSATURATED AT THE GROUNDLOWEST CLOUD REPORTED, SCT 1,000 FTTEMPERATURE AND DEW POINT 60.8 F, 60.8 FRELATIVE HUMIDITY 100 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 POINTTITLERomeoville/Chi, the airSTATION REPORT · ASOS LOTTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-LOT-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 13 mph, gusting 22 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 23 mph.

Plan of the wind at Romeoville/Chi, north up: blowing from 280 degrees, the west, at 13 miles an hour, gusting 22; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT LOTFIG. C THE WIND AT ROMEOVILLE/CHIPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 280°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 13 MPH5FRESH BREEZE19GUST, 22 MPH6STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLERomeoville/Chi, the windSTATION REPORT · ASOS LOTTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-LOT-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Romeoville WFO (LOTI2), 3.0 miles from here, read 15 Oct, 18:54. measured daily

Elsewhere in Illinois

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

Near Lockport

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

Near Lockport

River and lake gauges