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Frankfort, Illinois

Village in Will County, Illinois

Air quality

The air at Frankfort

Index 29, good, led by fine particles. Read at 11 PM from its reporting area, South and West Suburbs (Chicago) (IL), 13 miles off.

29Good
  • Fine particles (PM2.5)29Good13.3 mi
  • Ozone9Good7 ppb13.3 mi
  • Sulfur dioxide0Good0.5 ppb20.8 mi

The days ahead

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

Smoke, the next 44 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Frankfort

0.39 in in the last 24 hours, 0.48 in over the last 3 days, to Thu 11 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.39in
Last 3 days
0.48in

Visibility

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

Visibility stays 5 miles or more through Sat 7 PM, lowest 6 miles Fri 1 PM.

FriSat

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

What is measuring near here

The 6 instruments nearest Frankfort, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.1 miles away.

measured now4 instruments

measured daily2 instruments

Frankfort 0.9 WIL-WL-183

In a volunteer observer's own ground/0.1 mi away/761 ft/1 ft above here

precip, snowfall, snow depth

Rank-

Manhattan 5NEMATI2

At a cooperative observer's station/4.1 mi away/745 ft/15 ft below here

snowfall, snow depth, precip, high, low

Rank356of 1,393

Station report

The weather at Romeoville/Chi, drawn

The nearest airport reporting now, 14.7 mi from Frankfort, Illinois. From its report of Oct 15, 2026, 11:55 PM local time: 3 of its 6 sheets.

The sky

Broken at 1,700 ft, broken at 2,200 ft, overcast at 4,200 ft; the ceiling is 1,700 ft; visibility 10 mi or more.

Section of the sky over Romeoville/Chi, height above the station to scale: broken cloud with its base at 1,700 feet, broken cloud with its base at 2,200 feet, overcast cloud with its base at 4,200 feet, the ceiling at 1,700 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 STATION01,0002,0003,0004,0005,0006,0007,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 4,200 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 2,200 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYBKN 1,700 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 1,700 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

59.0 F with a dew point of 57.2 F, 94 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 400 ft up; the lowest cloud reported is at 1,700 ft.

Chart of the air at Romeoville/Chi: temperature 59.0 degrees Fahrenheit and dew point 57.2, 94 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 400 feet above the station, against the lowest cloud reported at 1,700 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 FSATURATES 400 FT ABOVE THE STATION, AT 56.7 FLOWEST CLOUD REPORTED, BKN 1,700 FTTEMPERATURE AND DEW POINT 59.0 F, 57.2 FRELATIVE HUMIDITY 94 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 northwest (290 degrees) at 13 mph, gusting 24 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 26 mph.

Plan of the wind at Romeoville/Chi, north up: blowing from 290 degrees, the west northwest, at 13 miles an hour, gusting 24; 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 290°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 13 MPH5FRESH BREEZE19GUST, 24 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 Manhattan 5NE (MATI2), 4.1 miles from here, read 15 Oct, 08:00. measured daily

Elsewhere in Illinois

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

Near Frankfort

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

Near Frankfort

River and lake gauges