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Ontario, New York

Community in Wayne County, New York

Air quality

The air at Ontario

Index 20, good, led by ozone. Read at 12 AM from its reporting area, Eastern Lake Ontario Region (NY), 31 miles off.

20Good
  • Fine particles (PM2.5)19Good14.4 mi
  • Ozone20Good20 ppb5.4 mi

The days ahead

Good each day through Today, led by fine particles. Yesterday measured 20, good.

Smoke, the next 44 hours

No smoke near the ground through Sat 8 PM.

FriSat

Precipitation

What has fallen at Ontario

None in the last 24 hours; 0.01 in over the last 3 days, to Fri 12 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.01in

Visibility

How far you can see at Ontario, the next 44 hours

Visibility stays 3 miles or more through Sat 8 PM, lowest 3 miles Fri 5 AM.

FriSat

On the radar over Ontario, New YorkReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Ontario, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.9 miles away.

measured now4 instruments

Geneva #1S2011

At a soil climate station/26.5 mi away/725 ft/295 ft above here

temp, humidity, soil temp, soil moisture

Rank950of 1,432

measured daily2 instruments

Webster 7.6 ENENY-WN-2

In a volunteer observer's own ground/1.9 mi away/364 ft/66 ft below here

precip, snowfall, snow depth

Rank-

WebsterWBSN6

At a cooperative observer's station/5.6 mi away/366 ft/64 ft below here

snowfall, snow depth, precip, high, low

Rank18of 1,432

Station report

The weather at Williamson, drawn

The nearest airport reporting now, 8.2 mi from Ontario, New York. From its report of Oct 16, 2026, 12:35 AM local time: 3 of its 6 sheets.

The sky

Overcast at 6,500 ft; the ceiling is 6,500 ft; visibility 10 mi or more.

Section of the sky over Williamson, height above the station to scale: overcast cloud with its base at 6,500 feet, the ceiling at 6,500 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SDCFIG. A THE SKY OVER WILLIAMSONSECTION, 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 SHEETOVC 6,500 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 6,500 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEWilliamson, the skySTATION REPORT · ASOS SDCTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-SDC-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-013, FB-SKY-014

The air

55.4 F with a dew point of 46.4 F, 72 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,100 ft up; the lowest cloud reported is at 6,500 ft.

Chart of the air at Williamson: temperature 55.4 degrees Fahrenheit and dew point 46.4, 72 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,100 feet above the station, against the lowest cloud reported at 6,500 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SDCFIG. B THE AIR AT WILLIAMSONTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,0007,0008,00030 F40 F50 F60 F70 FSATURATES 2,100 FT ABOVE THE STATION, AT 44.4 FLOWEST CLOUD REPORTED, OVC 6,500 FTTEMPERATURE 55.4 FDEW POINT 46.4 FSPREAD 9.0 FRELATIVE HUMIDITY 72 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 POINTTITLEWilliamson, the airSTATION REPORT · ASOS SDCTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-SDC-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south southeast (150 degrees) at 10 mph, gusting 18 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 18 mph.

Plan of the wind at Williamson, north up: blowing from 150 degrees, the south southeast, at 10 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 SDCFIG. C THE WIND AT WILLIAMSONPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 150°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 10 MPH4MODERATE BREEZE13GUST, 18 MPH5FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEWilliamson, the windSTATION REPORT · ASOS SDCTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-SDC-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Webster (WBSN6), 5.6 miles from here, read 15 Oct, 20:00. measured daily

Elsewhere in New York

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

Near Ontario

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

Near Ontario

River and lake gauges