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Macon, Illinois

City in Macon County, Illinois

Air quality

The air at Macon

Index 28, good, led by fine particles. Read at 11 PM from its reporting area, Decatur (IL), 11 miles off.

28Good
  • Fine particles (PM2.5)28Good11.5 mi
  • Ozone14Good10 ppb11.5 mi

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 45, good.

Smoke, the next 44 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Macon

0.57 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
0.57in
Last 3 days
0.57in

Visibility

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

Visibility stays 6 miles or more through Sat 7 PM, lowest 7 miles Fri 4 PM.

FriSat

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

What is measuring near here

The 5 instruments nearest Macon, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 5.9 miles away.

measured now3 instruments

DecaturDEC

At an airfield/11.2 mi away/679 ft/41 ft below here

temp, wind, gust, visibility, precip, pressure

Rank399of 1,393

measured daily2 instruments

Decatur 5.0 SWIL-MA-2

In a volunteer observer's own ground/5.9 mi away/702 ft/18 ft below here

precip, snowfall, snow depth

Rank-

Moweaqua 2SMQUI2

At a cooperative observer's station/8.4 mi away/620 ft/100 ft below here

snowfall, snow depth, precip, high, low

Rank50of 1,393

Station report

The weather at Decatur, drawn

The nearest airport reporting now, 11.2 mi from Macon, Illinois. From its report of Oct 15, 2026, 10:54 PM local time: 3 of its 6 sheets.

The sky

Broken at 600 ft, broken at 2,000 ft, overcast at 2,900 ft; the ceiling is 600 ft; visibility 4 mi.

Section of the sky over Decatur, height above the station to scale: broken cloud with its base at 600 feet, broken cloud with its base at 2,000 feet, overcast cloud with its base at 2,900 feet, the ceiling at 600 feet, and visibility of 4 mi.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 STATION01,0002,0003,0004,0005,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 2,900 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 2,000 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYBKN 600 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 600 FTVISIBILITY, MILES: 4 MI0510TITLEDecatur, 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

63.0 F with a dew point of 62.0 F, 97 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 200 ft up; the lowest cloud reported is at 600 ft.

Chart of the air at Decatur: temperature 63.0 degrees Fahrenheit and dew point 62.0, 97 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 200 feet above the station, against the lowest cloud reported at 600 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 STATION01,0002,0003,00050 F60 F70 FSATURATES 200 FT ABOVE THE STATION, AT 61.7 FLOWEST CLOUD REPORTED, BKN 600 FTTEMPERATURE AND DEW POINT 63.0 F, 62.0 FRELATIVE HUMIDITY 97 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-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (290 degrees) at 18 mph, gusting 33 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 39 mph.

Plan of the wind at Decatur, north up: blowing from 290 degrees, the west northwest, at 18 miles an hour, gusting 33; 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 290°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 18 MPH5FRESH BREEZE196STRONG BREEZE257NEAR GALE32GUST, 33 MPH8GALE399STRONG 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

0in

Snow on the ground

Measured at Moweaqua 2S (MQUI2), 8.4 miles from here, read 15 Oct, 06:00. measured daily

Elsewhere in Illinois

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

Near Macon

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

Near Macon

River and lake gauges