Storm Station
Sign in

Carterville, Illinois

City in Williamson County, Illinois

Air quality

The air at Carterville

Index 20, good, led by ozone. Read at 11 PM from its reporting area, Farrar (MO), 34 miles off.

20Good
  • Ozone20Good-

The days ahead

Yesterday measured 28, good.

Smoke, the next 44 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Carterville

0.14 in in the last 24 hours, 0.83 in over the last 3 days, to Thu 11 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.14in
Last 3 days
0.83in

Visibility

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

Visibility stays 8 miles or more through Sat 7 PM, lowest 8 miles Fri 4 PM.

FriSat

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

What is measuring near here

The 6 instruments nearest Carterville, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.0 miles away.

measured now4 instruments

measured daily2 instruments

Carterville 0.0 SIL-WM-2

In a volunteer observer's own ground/0.0 mi away/440 ft/1 ft below here

precip, snowfall, snow depth

Rank-

Sewage PlantMDHI2

At a cooperative observer's station/6.7 mi away/384 ft/57 ft below here

snowfall, snow depth, precip, high, low

Rank990of 1,393

Station report

The weather at Marion Regional, drawn

The nearest airport reporting now, 3.9 mi from Carterville, Illinois. From its report of Oct 15, 2026, 11:55 PM local time: 3 of its 6 sheets.

The sky

Scattered at 7,000 ft, overcast at 8,000 ft; the ceiling is 8,000 ft; visibility 10 mi or more.

Section of the sky over Marion Regional, height above the station to scale: scattered cloud with its base at 7,000 feet, overcast cloud with its base at 8,000 feet, the ceiling at 8,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MWAFIG. A THE SKY OVER MARION REGIONALSECTION, 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 STATION02,5005,0007,50010,00012,500ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FTOVC 8,000 FTOVERCAST, 8 EIGHTHS OF THE SKYSCT 7,000 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 8,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEMarion Regional, the skySTATION REPORT · ASOS MWATYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-MWA-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-013, FB-SKY-014

The air

77.0 F with a dew point of 64.4 F, 65 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,900 ft up; the lowest cloud reported is at 7,000 ft.

Chart of the air at Marion Regional: temperature 77.0 degrees Fahrenheit and dew point 64.4, 65 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,900 feet above the station, against the lowest cloud reported at 7,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MWAFIG. B THE AIR AT MARION REGIONALTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION02,0004,0006,0008,00050 F60 F70 F80 F90 FSATURATES 2,900 FT ABOVE THE STATION, AT 61.5 FLOWEST CLOUD REPORTED, SCT 7,000 FTTEMPERATURE 77.0 FDEW POINT 64.4 FSPREAD 12.6 FRELATIVE HUMIDITY 65 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 POINTTITLEMarion Regional, the airSTATION REPORT · ASOS MWATYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-MWA-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (290 degrees) at 7 mph: force 2, a light breeze on the Beaufort scale. The strongest gust today was 25 mph.

Plan of the wind at Marion Regional, north up: blowing from 290 degrees, the west northwest, at 7 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MWAFIG. C THE WIND AT MARION REGIONALPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 290°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 7 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMarion Regional, the windSTATION REPORT · ASOS MWATYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-MWA-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Sewage Plant (MDHI2), 6.7 miles from here, read 15 Oct, 07:00. measured daily

Elsewhere in Illinois

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

Near Carterville

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

Near Carterville

River and lake gauges