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Sidney, Illinois

Village in Champaign County, Illinois

Air quality

The air at Sidney

Index 31, good, led by fine particles. Read at 10 PM from its reporting area, Champaign (IL), 19 miles off.

31Good
  • Fine particles (PM2.5)31Good16.2 mi
  • Ozone17Good14 ppb16.8 mi

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 43, good.

Smoke, the next 45 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Sidney

0.39 in in the last 24 hours, and none in the 2 days before, to Thu 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.39in
Last 3 days
0.39in

Visibility

How far you can see at Sidney, the next 45 hours

Visibility stays 8 miles or more through Sat 7 PM, lowest 9 miles Thu 11 PM.

FriSat

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

What is measuring near here

The 7 instruments nearest Sidney, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.8 miles away.

measured now5 instruments

measured daily2 instruments

PhiloPHLI2

At a cooperative observer's station/4.9 mi away/728 ft/62 ft above here

snowfall, snow depth, precip, high, low

Rank1,300of 1,393

Station report

The weather at Champaign - Willard, drawn

The nearest airport reporting now, 10.8 mi from Sidney, Illinois. From its report of Oct 15, 2026, 10:45 PM local time: 3 of its 6 sheets.

The sky

Broken at 1,200 ft, overcast at 2,700 ft; the ceiling is 1,200 ft; visibility 6 mi.

Section of the sky over Champaign - Willard, height above the station to scale: broken cloud with its base at 1,200 feet, overcast cloud with its base at 2,700 feet, the ceiling at 1,200 feet, and visibility of 6 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CMIFIG. A THE SKY OVER CHAMPAIGN - WILLARDSECTION, 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 2,700 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 1,200 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 1,200 FTVISIBILITY, MILES: 6 MI0510TITLEChampaign - Willard, the skySTATION REPORT · ASOS CMITYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-CMI-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

68.0 F with a dew point of 66.0 F, 93 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 500 ft up; the lowest cloud reported is at 1,200 ft.

Chart of the air at Champaign - Willard: temperature 68.0 degrees Fahrenheit and dew point 66.0, 93 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 500 feet above the station, against the lowest cloud reported at 1,200 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CMIFIG. B THE AIR AT CHAMPAIGN - WILLARDTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00050 F60 F70 F80 FSATURATES 500 FT ABOVE THE STATION, AT 65.5 FLOWEST CLOUD REPORTED, BKN 1,200 FTTEMPERATURE AND DEW POINT 68.0 F, 66.0 FRELATIVE HUMIDITY 93 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 POINTTITLEChampaign - Willard, the airSTATION REPORT · ASOS CMITYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-CMI-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west (260 degrees) at 18 mph, gusting 25 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 28 mph.

Plan of the wind at Champaign - Willard, north up: blowing from 260 degrees, the west, at 18 miles an hour, gusting 25; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CMIFIG. C THE WIND AT CHAMPAIGN - WILLARDPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 260°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 18 MPH5FRESH BREEZE196STRONG BREEZE25GUST, 25 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEChampaign - Willard, the windSTATION REPORT · ASOS CMITYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-CMI-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Philo (PHLI2), 4.9 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 Sidney

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

Near Sidney

River and lake gauges