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Harrison, Illinois

Community in Jackson County, Illinois

Air quality

The air at Harrison

Index 19, good, led by ozone. Read at 4 AM from its reporting area, St. Louis (Metro-east) (IL), 64 miles off.

19Good
  • Fine particles (PM2.5)9Good-
  • Ozone19Good18 ppb20.7 mi
  • Coarse particles (PM10)4Good-

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 39, good.

Smoke, the next 46 hours

No smoke near the ground through Sun 1 AM.

FriSat

Precipitation

What has fallen at Harrison

0.18 in in the last 24 hours, 0.19 in over the last 3 days, to Fri 3 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.18in
Last 3 days
0.19in

Visibility

How far you can see at Harrison, the next 46 hours

Visibility stays 8 miles or more through Sun 1 AM, lowest 9 miles Fri 8 AM.

FriSat

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

What is measuring near here

The 6 instruments nearest Harrison, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.9 miles away.

measured now4 instruments

measured daily2 instruments

MurphysboroMURI2

At a cooperative observer's station/4.7 mi away/512 ft/104 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Carbondale/Murph, drawn

The nearest airport reporting now, 4.8 mi from Harrison, Illinois. From its report of Oct 16, 2026, 4:20 AM local time: 3 of its 6 sheets.

The sky

A few clouds at 2,800 ft, broken at 6,000 ft, overcast at 7,500 ft; the ceiling is 6,000 ft; visibility 10 mi or more.

Section of the sky over Carbondale/Murph, height above the station to scale: a few clouds cloud with its base at 2,800 feet, broken cloud with its base at 6,000 feet, overcast cloud with its base at 7,500 feet, the ceiling at 6,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MDHFIG. A THE SKY OVER CARBONDALE/MURPHSECTION, 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 STATION02,5005,0007,50010,00012,500ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FTOVC 7,500 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 6,000 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYFEW 2,800 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYCEILING 6,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLECarbondale/Murph, the skySTATION REPORT · ASOS MDHTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-MDH-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018, FB-SKY-013, FB-SKY-014

The air

56.0 F with a dew point of 52.0 F, 86 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 900 ft up; the lowest cloud reported is at 2,800 ft.

Chart of the air at Carbondale/Murph: temperature 56.0 degrees Fahrenheit and dew point 52.0, 86 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 900 feet above the station, against the lowest cloud reported at 2,800 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MDHFIG. B THE AIR AT CARBONDALE/MURPHTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00040 F50 F60 F70 FSATURATES 900 FT ABOVE THE STATION, AT 51.0 FLOWEST CLOUD REPORTED, FEW 2,800 FTTEMPERATURE 56.0 FDEW POINT 52.0 FSPREAD 4.0 FRELATIVE HUMIDITY 86 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 POINTTITLECarbondale/Murph, the airSTATION REPORT · ASOS MDHTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-MDH-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (330 degrees) at 10 mph, gusting 21 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 38 mph.

Plan of the wind at Carbondale/Murph, north up: blowing from 330 degrees, the north northwest, at 10 miles an hour, gusting 21; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MDHFIG. C THE WIND AT CARBONDALE/MURPHPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 330°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 10 MPH4MODERATE BREEZE135FRESH BREEZE19GUST, 21 MPH6STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECarbondale/Murph, the windSTATION REPORT · ASOS MDHTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-MDH-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Carbondale/Murph, 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 Harrison

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

Near Harrison

River and lake gauges