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Royal, Illinois

Village in Champaign County, Illinois

Air quality

The air at Royal

Index 15, good, led by ozone. Read at 4 AM from its reporting area, Champaign (IL), 17 miles off.

15Good
  • Fine particles (PM2.5)11Good-
  • Ozone15Good-

The days ahead

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

Smoke, the next 46 hours

No smoke near the ground through Sun 1 AM.

FriSat

Precipitation

What has fallen at Royal

0.44 in in the last 24 hours, and none in the 2 days before, to Fri 3 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.44in
Last 3 days
0.44in

Visibility

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

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

FriSat

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

What is measuring near here

The 6 instruments nearest Royal, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.0 miles away.

measured now4 instruments

RantoulTIP

At an airfield/11.4 mi away/738 ft/57 ft above here

temp, wind, gust, visibility, precip, pressure

Rank439of 1,393

measured daily2 instruments

Fithian 6.4 NIL-VR-53

In a volunteer observer's own ground/4.0 mi away/709 ft/28 ft above here

precip, snowfall, snow depth

Rank-

OgdenOGDI2

At a cooperative observer's station/5.7 mi away/669 ft/12 ft below here

snowfall, snow depth, precip, high, low

Rank1,392of 1,393

Station report

The weather at Rantoul, drawn

The nearest airport reporting now, 11.4 mi from Royal, Illinois. From its report of Oct 16, 2026, 4:15 AM local time: 3 of its 6 sheets.

The sky

Broken at 2,300 ft, overcast at 2,800 ft; the ceiling is 2,300 ft; visibility 10 mi or more.

Section of the sky over Rantoul, height above the station to scale: broken cloud with its base at 2,300 feet, overcast cloud with its base at 2,800 feet, the ceiling at 2,300 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 STATION01,0002,0003,0004,0005,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 2,800 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 2,300 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 2,300 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

51.8 F with a dew point of 48.2 F, 87 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 2,300 ft.

Chart of the air at Rantoul: temperature 51.8 degrees Fahrenheit and dew point 48.2, 87 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 2,300 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 STATION01,0002,0003,00040 F50 F60 FSATURATES 800 FT ABOVE THE STATION, AT 47.3 FLOWEST CLOUD REPORTED, BKN 2,300 FTTEMPERATURE 51.8 FDEW POINT 48.2 FSPREAD 3.6 FRELATIVE HUMIDITY 87 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-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (300 degrees) at 18 mph, gusting 23 mph: force 4, a moderate 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 18 miles an hour, gusting 23; beside it the Beaufort scale from calm to hurricane force, force 4, moderate 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 BREEZE13NOW, 18 MPH5FRESH BREEZE19GUST, 23 MPH6STRONG BREEZE257NEAR 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

0in

Snow on the ground

Measured at Ogden (OGDI2), 5.7 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 Royal

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

Near Royal

River and lake gauges