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Amboy, Illinois

City in Lee County, Illinois

Air quality

The air at Amboy

Index 23, good, led by fine particles. Read at 11 AM from its reporting area, Rockford (IL), 45 miles off.

23Good
  • Fine particles (PM2.5)23Good-
  • Ozone13Good-

The days ahead

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

Smoke, the next 45 hours

No smoke near the ground through Sun 7 AM.

FriSatSun

Precipitation

What has fallen at Amboy

0.42 in in the last 24 hours, 0.59 in over the last 3 days, to Fri 10 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.42in
Last 3 days
0.59in

Visibility

How far you can see at Amboy, the next 45 hours

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

FriSatSun

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

What is measuring near here

The 7 instruments nearest Amboy, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.4 miles away.

measured now5 instruments

RochelleRPJ

At an airfield/17.8 mi away/781 ft/31 ft above here

temp, wind, gust, visibility, precip, pressure

Rank522of 1,393

measured daily2 instruments

Amboy WaterAMBI2

At a cooperative observer's station/0.4 mi away/758 ft/8 ft above here

snowfall, snow depth, precip, high, low

Rank1,230of 1,393

Station report

The weather at Rochelle, drawn

The nearest airport reporting now, 17.8 mi from Amboy, Illinois. From its report of Oct 16, 2026, 11:15 AM local time: 3 of its 6 sheets.

The sky

Broken at 2,400 ft, overcast at 3,100 ft; the ceiling is 2,400 ft; visibility 10 mi or more.

Section of the sky over Rochelle, height above the station to scale: broken cloud with its base at 2,400 feet, overcast cloud with its base at 3,100 feet, the ceiling at 2,400 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 STATION01,0002,0003,0004,0005,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 3,100 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 2,400 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 2,400 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

50.7 F with a dew point of 44.2 F, 78 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,500 ft up; the lowest cloud reported is at 2,400 ft.

Chart of the air at Rochelle: temperature 50.7 degrees Fahrenheit and dew point 44.2, 78 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,500 feet above the station, against the lowest cloud reported at 2,400 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 1,500 FT ABOVE THE STATION, AT 42.8 FLOWEST CLOUD REPORTED, BKN 2,400 FTTEMPERATURE 50.7 FDEW POINT 44.2 FSPREAD 6.5 FRELATIVE HUMIDITY 78 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 northwest (320 degrees) at 12 mph, gusting 20 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 320 degrees, the northwest, at 12 miles an hour, gusting 20; 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 320°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 12 MPH4MODERATE BREEZE135FRESH BREEZE19GUST, 20 MPH6STRONG 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 Amboy

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

Near Amboy

River and lake gauges