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Chatsworth, Illinois

Town in Livingston County, Illinois

Air quality

The air at Chatsworth

Index 13, good, led by fine particles. Read at 1 AM from its reporting area, Bloomington and Normal (IL), 23 miles off.

13Good
  • Fine particles (PM2.5)13Good-
  • Ozone6Good-

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 29, good.

Smoke, the next 42 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Chatsworth

0.04 in in the last 24 hours, 0.16 in over the last 3 days, to Fri 1 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.04in
Last 3 days
0.16in

Visibility

How far you can see at Chatsworth, the next 42 hours

Visibility stays 6 miles or more through Sat 7 PM, lowest 6 miles Fri 2 PM.

FriSat

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

What is measuring near here

The 6 instruments nearest Chatsworth, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.4 miles away.

measured now4 instruments

PontiacPNT

At an airfield/21.0 mi away/659 ft/71 ft below here

temp, wind, gust, visibility, precip, pressure

Rank765of 1,393

measured daily2 instruments

ChatsworthCHTI2

At a cooperative observer's station/0.4 mi away/725 ft/5 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Pontiac, drawn

The nearest airport reporting now, 21.0 mi from Chatsworth, Illinois. From its report of Oct 16, 2026, 1:55 AM local time: 3 of its 6 sheets.

The sky

Overcast at 1,700 ft; the ceiling is 1,700 ft; visibility 10 mi or more.

Section of the sky over Pontiac, height above the station to scale: overcast cloud with its base at 1,700 feet, the ceiling at 1,700 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PNTFIG. A THE SKY OVER PONTIACSECTION, 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 1,700 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 1,700 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEPontiac, the skySTATION REPORT · ASOS PNTTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-PNT-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

53.6 F with a dew point of 50.0 F, 88 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 800 ft up; the lowest cloud reported is at 1,700 ft.

Chart of the air at Pontiac: temperature 53.6 degrees Fahrenheit and dew point 50.0, 88 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 800 feet above the station, against the lowest cloud reported at 1,700 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PNTFIG. B THE AIR AT PONTIACTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00040 F50 F60 FSATURATES 800 FT ABOVE THE STATION, AT 49.2 FLOWEST CLOUD REPORTED, OVC 1,700 FTTEMPERATURE 53.6 FDEW POINT 50.0 FSPREAD 3.6 FRELATIVE HUMIDITY 88 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 POINTTITLEPontiac, the airSTATION REPORT · ASOS PNTTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-PNT-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (300 degrees) at 26 mph, gusting 37 mph: force 6, a strong breeze on the Beaufort scale. The strongest gust today was 37 mph.

Plan of the wind at Pontiac, north up: blowing from 300 degrees, the west northwest, at 26 miles an hour, gusting 37; beside it the Beaufort scale from calm to hurricane force, force 6, strong breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PNTFIG. C THE WIND AT PONTIACPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 300°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE25NOW, 26 MPH7NEAR GALE32GUST, 37 MPH8GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEPontiac, the windSTATION REPORT · ASOS PNTTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-PNT-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Illinois

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

Near Chatsworth

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

Near Chatsworth

River and lake gauges