Storm Station
Ontario, Wisconsin
58°
Partly cloudy· Feels like 58°·Light air 1 mph SSW
A chance of rain showers after 9am. Mostly cloudy. High near 69, with temperatures falling to around 67 in the afternoon. North wind around 1 mph.
-UV
-Air quality
90%Humidity
72%Cloud

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 0.7 miles away.

measured now4 instruments

Sparta/Mccoy AAFCMY

At an airfield/17.5 mi away/833 ft/89 ft below here

temp, wind, gust, visibility, precip, pressure

Rank339of 347

La CrosseLSRW3

At a river or reservoir gauge/30.3 mi away/1,269 ft/347 ft above here

temp, wind, gust, humidity, pressure

Rank111of 347

Necedah 5 WNW54903

At a climate reference station/31.4 mi away/933 ft/11 ft above here

temp, humidity, wind, solar, precip

Rank-

measured daily2 instruments

OntarioONTW3

At a cooperative observer's station/0.7 mi away/899 ft/23 ft below here

snowfall, snow depth, precip, high, low

Rank-

Westby 6.2 NEWI-VR-16

In a volunteer observer's own ground/8.6 mi away/1,304 ft/382 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Sparta/Mccoy AAF, drawn

The nearest airport reporting now, 17.5 mi from Ontario. From its report of Sep 27, 2026, 5:55 AM local time: 3 of its 6 sheets.

The sky

Overcast at 4,400 ft; the ceiling is 4,400 ft; visibility 10 mi or more.

Section of the sky over Sparta/Mccoy AAF, height above the station to scale: overcast cloud with its base at 4,400 feet, the ceiling at 4,400 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CMYFIG. A THE SKY OVER SPARTA/MCCOY AAFSECTION, 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 STATION01,0002,0003,0004,0005,0006,0007,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 4,400 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 4,400 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLESparta/Mccoy AAF, the skySTATION REPORT · ASOS CMYTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-CMY-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

59.0 F with a dew point of 53.6 F, 82 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 4,400 ft.

Chart of the air at Sparta/Mccoy AAF: temperature 59.0 degrees Fahrenheit and dew point 53.6, 82 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 4,400 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CMYFIG. B THE AIR AT SPARTA/MCCOY AAFTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,00040 F50 F60 F70 FSATURATES 1,300 FT ABOVE THE STATION, AT 52.3 FLOWEST CLOUD REPORTED, OVC 4,400 FTTEMPERATURE 59.0 FDEW POINT 53.6 FSPREAD 5.4 FRELATIVE HUMIDITY 82 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 POINTTITLESparta/Mccoy AAF, the airSTATION REPORT · ASOS CMYTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-CMY-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Sparta/Mccoy AAF, north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CMYFIG. C THE WIND AT SPARTA/MCCOY AAFPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLESparta/Mccoy AAF, the windSTATION REPORT · ASOS CMYTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-CMY-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Sparta/Mccoy AAF, in 6 sheets, each beside the Field Book plates that explain it

-in

Snow on the ground

Elsewhere in Wisconsin

19 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.