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Oregon, Illinois

City in Ogle County, Illinois

Air quality

The air at Oregon

Index 19, good, led by fine particles. Read at 7 AM from its reporting area, Rockford (IL), 27 miles off.

19Good
  • Fine particles (PM2.5)19Good-
  • Ozone15Good-

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 18, good.

Smoke, the next 42 hours

No smoke near the ground through Sun 1 AM.

FriSat

Precipitation

What has fallen at Oregon

0.74 in in the last 24 hours, and none in the 2 days before, to Fri 7 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.74in
Last 3 days
0.74in

Visibility

How far you can see at Oregon, the next 42 hours

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

FriSat

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

What is measuring near here

The 7 instruments nearest Oregon, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.6 miles away.

measured now5 instruments

RochelleRPJ

At an airfield/15.6 mi away/781 ft/74 ft above here

temp, wind, gust, visibility, precip, pressure

Rank522of 1,393

measured daily2 instruments

Oregon WWTPOREI2

At a water treatment plant/0.6 mi away/676 ft/31 ft below here

snowfall, snow depth, precip, high, low

Rank-

Mount Morris 1.4 ESEIL-OG-10

In a volunteer observer's own ground/4.1 mi away/919 ft/212 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Rochelle, drawn

The nearest airport reporting now, 15.6 mi from Oregon, Illinois. From its report of Oct 16, 2026, 7:55 AM local time: 3 of its 6 sheets.

The sky

Overcast at 2,000 ft; the ceiling is 2,000 ft; visibility 10 mi or more.

Section of the sky over Rochelle, height above the station to scale: overcast cloud with its base at 2,000 feet, the ceiling at 2,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT RPJFIG. A THE SKY OVER ROCHELLESECTION, 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 2,000 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 2,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLERochelle, the skySTATION REPORT · ASOS RPJTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-RPJ-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

47.0 F with a dew point of 42.3 F, 84 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,100 ft up; the lowest cloud reported is at 2,000 ft.

Chart of the air at Rochelle: temperature 47.0 degrees Fahrenheit and dew point 42.3, 84 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,100 feet above the station, against the lowest cloud reported at 2,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT RPJFIG. B THE AIR AT ROCHELLETHE 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 1,100 FT ABOVE THE STATION, AT 41.2 FLOWEST CLOUD REPORTED, OVC 2,000 FTTEMPERATURE 47.0 FDEW POINT 42.3 FSPREAD 4.7 FRELATIVE HUMIDITY 84 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 POINTTITLERochelle, the airSTATION REPORT · ASOS RPJTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-RPJ-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (290 degrees) at 12 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 30 mph.

Plan of the wind at Rochelle, north up: blowing from 290 degrees, the west northwest, at 12 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 RPJFIG. C THE WIND AT ROCHELLEPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 290°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 12 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLERochelle, the windSTATION REPORT · ASOS RPJTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-RPJ-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Rochelle, 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 Oregon

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

Near Oregon

River and lake gauges