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Symerton, Illinois

Village in Will County, Illinois

Air quality

The air at Symerton

Index 10, good, led by ozone. Read at 4 AM from its reporting area, Joliet and Will County (IL), 6 miles off.

10Good
  • Fine particles (PM2.5)7Good-
  • Ozone10Good-

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 28, good.

Smoke, the next 46 hours

No smoke near the ground through Sun 1 AM.

FriSat

Precipitation

What has fallen at Symerton

0.23 in in the last 24 hours, 0.83 in over the last 3 days, to Fri 3 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.23in
Last 3 days
0.83in

Visibility

How far you can see at Symerton, the next 46 hours

Visibility stays 9 miles or more through Sun 1 AM, lowest 10 miles Fri 6 AM.

FriSat

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

What is measuring near here

The 6 instruments nearest Symerton, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.0 miles away.

measured now4 instruments

JolietJOT

At an airfield/14.5 mi away/581 ft/55 ft below here

temp, wind, gust, visibility, precip, pressure

Rank456of 1,393

measured daily2 instruments

Wilmington 5.6 EIL-WL-199

In a volunteer observer's own ground/3.0 mi away/673 ft/37 ft above here

precip, snowfall, snow depth

Rank-

Manhattan 5NEMATI2

At a cooperative observer's station/11.7 mi away/745 ft/109 ft above here

snowfall, snow depth, precip, high, low

Rank356of 1,393

Station report

The weather at Joliet, drawn

The nearest airport reporting now, 14.5 mi from Symerton, Illinois. From its report of Oct 16, 2026, 4:35 AM local time: 3 of its 6 sheets.

The sky

Overcast at 3,000 ft; the ceiling is 3,000 ft; visibility 10 mi or more.

Section of the sky over Joliet, height above the station to scale: overcast cloud with its base at 3,000 feet, the ceiling at 3,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JOTFIG. A THE SKY OVER JOLIETSECTION, 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 3,000 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 3,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEJoliet, the skySTATION REPORT · ASOS JOTTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-JOT-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

54.5 F with a dew point of 47.7 F, 78 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 3,000 ft.

Chart of the air at Joliet: temperature 54.5 degrees Fahrenheit and dew point 47.7, 78 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 3,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JOTFIG. B THE AIR AT JOLIETTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00040 F50 F60 F70 FSATURATES 1,600 FT ABOVE THE STATION, AT 46.1 FLOWEST CLOUD REPORTED, OVC 3,000 FTTEMPERATURE 54.5 FDEW POINT 47.7 FSPREAD 6.8 FRELATIVE HUMIDITY 78 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 POINTTITLEJoliet, the airSTATION REPORT · ASOS JOTTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-JOT-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (290 degrees) at 8 mph, gusting 17 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 25 mph.

Plan of the wind at Joliet, north up: blowing from 290 degrees, the west northwest, at 8 miles an hour, gusting 17; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JOTFIG. C THE WIND AT JOLIETPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 290°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 8 MPH4MODERATE BREEZE13GUST, 17 MPH5FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEJoliet, the windSTATION REPORT · ASOS JOTTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-JOT-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Manhattan 5NE (MATI2), 11.7 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 Symerton

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

Near Symerton

River and lake gauges