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Genoa, Illinois

City in DeKalb County, Illinois

Air quality

The air at Genoa

Index 16, good, led by ozone. Read at 6 PM from its reporting area, Aurora and Elgin (IL), 23 miles off.

16Good
  • Fine particles (PM2.5)10Good-
  • Ozone16Good22 ppb24.2 mi

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 23, good.

Smoke, the next 43 hours

No smoke near the ground through Sun 1 PM.

FriSatSun

Precipitation

What has fallen at Genoa

0.04 in in the last 24 hours, 0.43 in over the last 3 days, to Fri 6 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.04in
Last 3 days
0.43in

Visibility

How far you can see at Genoa, the next 43 hours

Visibility stays 8 miles or more through Sun 1 PM, lowest 8 miles Sat 7 AM.

FriSatSun

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

What is measuring near here

The 7 instruments nearest Genoa, 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 now5 instruments

De KalbDKB

At an airfield/11.1 mi away/915 ft/97 ft above here

temp, wind, gust, visibility, precip, pressure

Rank15of 1,419

measured daily2 instruments

Genoa 0.4 SWIL-DK-32

In a volunteer observer's own ground/0.1 mi away/831 ft/13 ft above here

precip, snowfall, snow depth

Rank-

Genoa 2SWGEOI2

At a cooperative observer's station/1.5 mi away/827 ft/9 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at De Kalb, drawn

The nearest airport reporting now, 11.1 mi from Genoa, Illinois. From its report of Oct 16, 2026, 6:55 PM local time: 3 of its 6 sheets.

The sky

Scattered at 3,300 ft, scattered at 3,900 ft, broken at 5,500 ft; the ceiling is 5,500 ft; visibility 10 mi or more.

Section of the sky over De Kalb, height above the station to scale: scattered cloud with its base at 3,300 feet, scattered cloud with its base at 3,900 feet, broken cloud with its base at 5,500 feet, the ceiling at 5,500 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DKBFIG. A THE SKY OVER DE KALBSECTION, 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 STATION02,5005,0007,50010,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETBKN 5,500 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYSCT 3,900 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYSCT 3,300 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 5,500 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEDe Kalb, the skySTATION REPORT · ASOS DKBTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-DKB-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

47.3 F with a dew point of 41.4 F, 80 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,300 ft up; the lowest cloud reported is at 3,300 ft.

Chart of the air at De Kalb: temperature 47.3 degrees Fahrenheit and dew point 41.4, 80 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,300 feet above the station, against the lowest cloud reported at 3,300 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DKBFIG. B THE AIR AT DE KALBTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,00030 F40 F50 F60 FSATURATES 1,300 FT ABOVE THE STATION, AT 40.1 FLOWEST CLOUD REPORTED, SCT 3,300 FTTEMPERATURE 47.3 FDEW POINT 41.4 FSPREAD 5.9 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 POINTTITLEDe Kalb, the airSTATION REPORT · ASOS DKBTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-DKB-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (340 degrees) at 9 mph, gusting 18 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 33 mph.

Plan of the wind at De Kalb, north up: blowing from 340 degrees, the north northwest, at 9 miles an hour, gusting 18; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DKBFIG. C THE WIND AT DE KALBPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 340°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 9 MPH4MODERATE BREEZE13GUST, 18 MPH5FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEDe Kalb, the windSTATION REPORT · ASOS DKBTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-DKB-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of De Kalb, 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 Genoa

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

Near Genoa

River and lake gauges