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Port Byron, Illinois

Village in Rock Island County, Illinois

Air quality

The air at Port Byron

Index 23, good, led by coarse particles. Read at 4 AM from its reporting area, Davenport (IA), 14 miles off.

23Good
  • Fine particles (PM2.5)21Good14.4 mi
  • Ozone12Good15 ppb11.7 mi
  • Coarse particles (PM10)23Good21 mi
  • Nitrogen dioxide1Good1.1 ppb14.4 mi
  • Sulfur dioxide0Good0 ppb14.4 mi

The days ahead

Yesterday measured 19, good.

Smoke, the next 46 hours

No smoke near the ground through Sun 1 AM.

FriSat

Precipitation

What has fallen at Port Byron

0.31 in in the last 24 hours, and none in the 2 days before, to Fri 3 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.31in
Last 3 days
0.31in

Visibility

How far you can see at Port Byron, the next 46 hours

Visibility stays 8 miles or more through Sun 1 AM, lowest 9 miles Sat 7 AM.

FriSat

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

What is measuring near here

The 6 instruments nearest Port Byron, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 5.7 miles away.

measured now4 instruments

MolineMLI

At an airfield/14.5 mi away/594 ft/55 ft below here

temp, wind, gust, visibility, precip, pressure

Rank410of 1,393

measured daily2 instruments

Hampton 0.4 WNWIL-RI-11

In a volunteer observer's own ground/5.7 mi away/560 ft/89 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Moline, drawn

The nearest airport reporting now, 14.5 mi from Port Byron, Illinois. From its report of Oct 16, 2026, 3:52 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 Moline, 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 MLIFIG. A THE SKY OVER MOLINESECTION, 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 MORE0510TITLEMoline, the skySTATION REPORT · ASOS MLITYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-MLI-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

48.0 F with a dew point of 40.0 F, 74 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,800 ft up.

Chart of the air at Moline: temperature 48.0 degrees Fahrenheit and dew point 40.0, 74 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,800 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MLIFIG. B THE AIR AT MOLINETHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00030 F40 F50 F60 FSATURATES 1,800 FT ABOVE THE STATION, AT 38.2 FTEMPERATURE 48.0 FDEW POINT 40.0 FSPREAD 8.0 FRELATIVE HUMIDITY 74 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 POINTTITLEMoline, the airSTATION REPORT · ASOS MLITYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-MLI-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (290 degrees) at 15 mph, gusting 26 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 46 mph.

Plan of the wind at Moline, north up: blowing from 290 degrees, the west northwest, at 15 miles an hour, gusting 26; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MLIFIG. C THE WIND AT MOLINEPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 290°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 15 MPH5FRESH BREEZE196STRONG BREEZE25GUST, 26 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMoline, the windSTATION REPORT · ASOS MLITYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-MLI-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Mississippi River AT Rock Island LD15 (RCKI2), 13.9 miles from here, read 15 Oct, 23:59. measured daily

Elsewhere in Illinois

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

Near Port Byron

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

Near Port Byron

River and lake gauges