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Rantoul, Illinois

Village in Champaign County, Illinois

Air quality

The air at Rantoul

Index 21, good, led by fine particles. Read at 7 AM from its reporting area, Champaign (IL), 10 miles off.

21Good
  • Fine particles (PM2.5)21Good21.6 mi
  • Ozone17Good15 ppb5.2 mi

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 42, good.

Smoke, the next 42 hours

No smoke near the ground through Sun 1 AM.

FriSat

Precipitation

What has fallen at Rantoul

0.13 in in the last 24 hours, and none in the 2 days before, to Fri 7 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.13in
Last 3 days
0.13in

Visibility

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

Visibility stays 8 miles or more through Sun 1 AM, lowest 9 miles Sun 1 AM.

FriSat

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

What is measuring near here

The 6 instruments nearest Rantoul, 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

RantoulTIP

At an airfield/1.2 mi away/738 ft/2 ft below here

temp, wind, gust, visibility, precip, pressure

Rank439of 1,393

measured daily2 instruments

RantoulRANI2

At a cooperative observer's station/0.8 mi away/768 ft/28 ft above here

snowfall, snow depth, precip, high, low

Rank30of 1,393

Station report

The weather at Rantoul, drawn

The nearest airport reporting now, 1.2 mi from Rantoul, Illinois. From its report of Oct 16, 2026, 7:55 AM local time: 3 of its 6 sheets.

The sky

Broken at 2,000 ft; the ceiling is 2,000 ft; visibility 10 mi or more.

Section of the sky over Rantoul, height above the station to scale: broken cloud with its base at 2,000 feet, the ceiling at 2,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT TIPFIG. A THE SKY OVER RANTOULSECTION, 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 SHEETBKN 2,000 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 2,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLERantoul, the skySTATION REPORT · ASOS TIPTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-TIP-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

47.3 F with a dew point of 42.0 F, 82 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,200 ft up; the lowest cloud reported is at 2,000 ft.

Chart of the air at Rantoul: temperature 47.3 degrees Fahrenheit and dew point 42.0, 82 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,200 feet above the station, against the lowest cloud reported at 2,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT TIPFIG. B THE AIR AT RANTOULTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00030 F40 F50 F60 FSATURATES 1,200 FT ABOVE THE STATION, AT 40.8 FLOWEST CLOUD REPORTED, BKN 2,000 FTTEMPERATURE 47.3 FDEW POINT 42.0 FSPREAD 5.3 FRELATIVE HUMIDITY 82 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 POINTTITLERantoul, the airSTATION REPORT · ASOS TIPTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-TIP-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (300 degrees) at 21 mph, gusting 26 mph: force 5, a fresh breeze on the Beaufort scale. The strongest gust today was 35 mph.

Plan of the wind at Rantoul, north up: blowing from 300 degrees, the west northwest, at 21 miles an hour, gusting 26; beside it the Beaufort scale from calm to hurricane force, force 5, fresh breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT TIPFIG. C THE WIND AT RANTOULPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 300°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE19NOW, 21 MPH6STRONG BREEZE25GUST, 26 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLERantoul, the windSTATION REPORT · ASOS TIPTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-TIP-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Rantoul, 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 Rantoul

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

Near Rantoul

River and lake gauges