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Shelbyville, Illinois

City in Shelby County, Illinois

Air quality

The air at Shelbyville

Index 28, good, led by fine particles. Read at 11 PM from its reporting area, Decatur (IL), 32 miles off.

28Good
  • Fine particles (PM2.5)28Good-
  • Ozone14Good-

The days ahead

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

Smoke, the next 45 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Shelbyville

0.59 in in the last 24 hours, 0.67 in over the last 3 days, to Thu 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.59in
Last 3 days
0.67in

Visibility

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

Visibility stays 3 miles or more through Sat 7 PM, lowest 3 miles Fri 3 PM.

FriSat

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

What is measuring near here

The 5 instruments nearest Shelbyville, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.3 miles away.

measured now3 instruments

Effingham1H2

At an airfield/27.3 mi away/587 ft/51 ft below here

temp, wind, gust, visibility, precip, pressure

Rank629of 1,393

measured daily2 instruments

ShelbyvilleSBYI2

At a cooperative observer's station/1.0 mi away/640 ft/2 ft above here

snowfall, snow depth, precip, high, low

Rank295of 1,393

Station report

The weather at Effingham, drawn

The nearest airport reporting now, 27.3 mi from Shelbyville, Illinois. From its report of Oct 15, 2026, 11:15 PM local time: 3 of its 6 sheets.

The sky

Scattered at 3,300 ft, overcast at 4,000 ft; the ceiling is 4,000 ft; visibility 10 mi or more.

Section of the sky over Effingham, height above the station to scale: scattered cloud with its base at 3,300 feet, overcast cloud with its base at 4,000 feet, the ceiling at 4,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 1H2FIG. A THE SKY OVER EFFINGHAMSECTION, 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 STATION01,0002,0003,0004,0005,0006,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 4,000 FTOVERCAST, 8 EIGHTHS OF THE SKYSCT 3,300 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 4,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEEffingham, the skySTATION REPORT · ASOS 1H2TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-1H2-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

73.0 F with a dew point of 66.6 F, 80 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,500 ft up; the lowest cloud reported is at 3,300 ft.

Chart of the air at Effingham: temperature 73.0 degrees Fahrenheit and dew point 66.6, 80 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,500 feet above the station, against the lowest cloud reported at 3,300 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 1H2FIG. B THE AIR AT EFFINGHAMTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,00050 F60 F70 F80 FSATURATES 1,500 FT ABOVE THE STATION, AT 65.0 FLOWEST CLOUD REPORTED, SCT 3,300 FTTEMPERATURE 73.0 FDEW POINT 66.6 FSPREAD 6.4 FRELATIVE HUMIDITY 80 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 POINTTITLEEffingham, the airSTATION REPORT · ASOS 1H2TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-1H2-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the southwest (220 degrees) at 9 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 16 mph.

Plan of the wind at Effingham, north up: blowing from 220 degrees, the southwest, at 9 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 1H2FIG. C THE WIND AT EFFINGHAMPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 220°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 9 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEEffingham, the windSTATION REPORT · ASOS 1H2TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-1H2-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Shelbyville (SBYI2), 1.0 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 Shelbyville

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

Near Shelbyville

River and lake gauges