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Omaha, Illinois

Village in Gallatin County, Illinois

Air quality

The air at Omaha

Index 18, good, led by ozone. Read at 9 AM from its reporting area, Evansville (IN), 41 miles off.

18Good
  • Fine particles (PM2.5)7Good-
  • Ozone18Good-
  • Coarse particles (PM10)3Good-

The days ahead

Highest moderate, Mon Oct 19, led by fine particles. Yesterday measured 17, good.

Smoke, the next 46 hours

No smoke near the ground through Mon 7 AM.

SatSunMon

Precipitation

What has fallen at Omaha

None in the last 24 hours; 1.05 in over the last 3 days, to Sat 9 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
1.05in

Visibility

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

Visibility stays 9 miles or more through Mon 7 AM, lowest 10 miles Sun 8 AM.

SatSunMon

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

What is measuring near here

The 4 instruments nearest Omaha, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.7 miles away.

measured now2 instruments

HarrisburgHSB

At an airfield/14.5 mi away/397 ft/18 ft above here

temp, wind, gust, visibility, precip, pressure

Rank410of 1,419

Posey 3 (Py 3)380758087551001

At a river or reservoir gauge/26.7 mi away/381 ft/2 ft above here

temp, wind, gust, humidity, pressure

Rank867of 1,419

measured daily2 instruments

Station report

The weather at Harrisburg, drawn

The nearest airport reporting now, 14.5 mi from Omaha, Illinois. From its report of Oct 17, 2026, 9:55 AM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 10 mi or more.

Section of the sky over Harrisburg, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HSBFIG. A THE SKY OVER HARRISBURGSECTION, 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 SHEETNO CLOUD DETECTED BELOW 12,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEHarrisburg, the skySTATION REPORT · ASOS HSBTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-HSB-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

51.0 F with a dew point of 39.0 F, 63 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,700 ft up.

Chart of the air at Harrisburg: temperature 51.0 degrees Fahrenheit and dew point 39.0, 63 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,700 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HSBFIG. B THE AIR AT HARRISBURGTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00030 F40 F50 F60 FSATURATES 2,700 FT ABOVE THE STATION, AT 36.4 FTEMPERATURE 51.0 FDEW POINT 39.0 FSPREAD 12.0 FRELATIVE HUMIDITY 63 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 POINTTITLEHarrisburg, the airSTATION REPORT · ASOS HSBTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-HSB-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northeast (30 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 Harrisburg, north up: blowing from 30 degrees, the north northeast, 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 HSBFIG. C THE WIND AT HARRISBURGPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 30°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 9 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEHarrisburg, the windSTATION REPORT · ASOS HSBTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-HSB-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Harrisburg, 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 Omaha

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

Near Omaha

River and lake gauges