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Oreana, Illinois

Village in Macon County, Illinois

Air quality

The air at Oreana

Index 24, good, led by fine particles. Read at 1 PM from its reporting area, Decatur (IL), 7 miles off.

24Good
  • Fine particles (PM2.5)24Good5.3 mi
  • Ozone15Good20 ppb5.3 mi

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 36, good.

Smoke, the next 43 hours

No smoke near the ground through Sun 7 AM.

FriSatSun

Precipitation

What has fallen at Oreana

0.41 in in the last 24 hours, 0.42 in over the last 3 days, to Fri 12 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.41in
Last 3 days
0.42in

Visibility

How far you can see at Oreana, the next 43 hours

Visibility stays 4 miles or more through Sun 7 AM, lowest 5 miles Fri 4 PM.

FriSatSun

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

What is measuring near here

The 7 instruments nearest Oreana, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.1 miles away.

measured now5 instruments

DecaturDEC

At an airfield/6.9 mi away/679 ft/10 ft below here

temp, wind, gust, visibility, precip, pressure

Rank399of 1,393

measured daily2 instruments

Oreana 0.4 SWIL-MA-11

In a volunteer observer's own ground/0.1 mi away/690 ft/1 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Decatur, drawn

The nearest airport reporting now, 6.9 mi from Oreana, Illinois. From its report of Oct 16, 2026, 12:54 PM local time: 3 of its 6 sheets.

The sky

A few clouds at 3,800 ft, overcast at 6,000 ft; the ceiling is 6,000 ft; visibility 10 mi or more.

Section of the sky over Decatur, height above the station to scale: a few clouds cloud with its base at 3,800 feet, overcast cloud with its base at 6,000 feet, the ceiling at 6,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DECFIG. A THE SKY OVER DECATURSECTION, 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 STATION02,5005,0007,50010,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 6,000 FTOVERCAST, 8 EIGHTHS OF THE SKYFEW 3,800 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYCEILING 6,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEDecatur, the skySTATION REPORT · ASOS DECTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-DEC-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

56.0 F with a dew point of 40.0 F, 55 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 3,600 ft up; the lowest cloud reported is at 3,800 ft.

Chart of the air at Decatur: temperature 56.0 degrees Fahrenheit and dew point 40.0, 55 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 3,600 feet above the station, against the lowest cloud reported at 3,800 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DECFIG. B THE AIR AT DECATURTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,00030 F40 F50 F60 F70 FSATURATES 3,600 FT ABOVE THE STATION, AT 36.5 FLOWEST CLOUD REPORTED, FEW 3,800 FTTEMPERATURE 56.0 FDEW POINT 40.0 FSPREAD 16.0 FRELATIVE HUMIDITY 55 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 POINTTITLEDecatur, the airSTATION REPORT · ASOS DECTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-DEC-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northwest (310 degrees) at 18 mph, gusting 31 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 37 mph.

Plan of the wind at Decatur, north up: blowing from 310 degrees, the northwest, at 18 miles an hour, gusting 31; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DECFIG. C THE WIND AT DECATURPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 310°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 18 MPH5FRESH BREEZE196STRONG BREEZE25GUST, 31 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEDecatur, the windSTATION REPORT · ASOS DECTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-DEC-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Decatur, 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 Oreana

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

Near Oreana

River and lake gauges