Storm Station
Sign in

Charleston, Illinois

City in Coles County, Illinois

Air quality

The air at Charleston

Index 34, good, led by fine particles. Read at 11 PM from its reporting area, Terre Haute (IN), 42 miles off.

34Good
  • Fine particles (PM2.5)34Good-
  • Ozone16Good-

The days ahead

Good each day through Today, led by fine particles. Yesterday measured 50, good.

Smoke, the next 44 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Charleston

0.44 in in the last 24 hours, 0.49 in over the last 3 days, to Thu 11 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.44in
Last 3 days
0.49in

Visibility

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

Visibility stays 6 miles or more through Sat 7 PM, lowest 6 miles Fri 12 AM.

FriSat

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

What is measuring near here

The 6 instruments nearest Charleston, 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 now4 instruments

measured daily2 instruments

Charleston 0.1 NNWIL-CE-1

In a volunteer observer's own ground/0.1 mi away/696 ft/1 ft below here

precip, snowfall, snow depth

Rank-

CharlestonCRSI2

At a cooperative observer's station/0.8 mi away/705 ft/8 ft above here

snowfall, snow depth, precip, high, low

Rank31of 1,393

Station report

The weather at Mattoon/Charlest, drawn

The nearest airport reporting now, 5.5 mi from Charleston, Illinois. From its report of Oct 15, 2026, 11:53 PM local time: 3 of its 6 sheets.

The sky

Broken at 1,000 ft, overcast at 1,700 ft; the ceiling is 1,000 ft; visibility 6 mi.

Section of the sky over Mattoon/Charlest, height above the station to scale: broken cloud with its base at 1,000 feet, overcast cloud with its base at 1,700 feet, the ceiling at 1,000 feet, and visibility of 6 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MTOFIG. A THE SKY OVER MATTOON/CHARLESTSECTION, 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 STATION05001,0001,5002,0002,5003,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 1,700 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 1,000 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 1,000 FTVISIBILITY, MILES: 6 MI0510TITLEMattoon/Charlest, the skySTATION REPORT · ASOS MTOTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-MTO-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

65.0 F with a dew point of 62.0 F, 90 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 700 ft up; the lowest cloud reported is at 1,000 ft.

Chart of the air at Mattoon/Charlest: temperature 65.0 degrees Fahrenheit and dew point 62.0, 90 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 700 feet above the station, against the lowest cloud reported at 1,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MTOFIG. B THE AIR AT MATTOON/CHARLESTTHE 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 700 FT ABOVE THE STATION, AT 61.2 FLOWEST CLOUD REPORTED, BKN 1,000 FTTEMPERATURE 65.0 FDEW POINT 62.0 FSPREAD 3.0 FRELATIVE HUMIDITY 90 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 POINTTITLEMattoon/Charlest, the airSTATION REPORT · ASOS MTOTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-MTO-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 24 mph, gusting 43 mph: force 5, a fresh breeze on the Beaufort scale. The strongest gust today was 43 mph.

Plan of the wind at Mattoon/Charlest, north up: blowing from 290 degrees, the west northwest, at 24 miles an hour, gusting 43; beside it the Beaufort scale from calm to hurricane force, force 5, fresh breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MTOFIG. C THE WIND AT MATTOON/CHARLESTPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 290°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE19NOW, 24 MPH6STRONG BREEZE257NEAR GALE328GALE39GUST, 43 MPH9STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMattoon/Charlest, the windSTATION REPORT · ASOS MTOTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-MTO-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Charleston (CRSI2), 0.8 miles from here, read 15 Oct, 18:00. measured daily

Elsewhere in Illinois

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

Near Charleston

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

Near Charleston

River and lake gauges