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Sussex, Wisconsin

Village in Waukesha County, Wisconsin

Air quality

The air at Sussex

Index 16, good, led by ozone. Read at 5 AM from its reporting area, Milwaukee-Ozaukee (WI), 14 miles off.

16Good
  • Fine particles (PM2.5)4Good-
  • Ozone16Good-
  • Coarse particles (PM10)3Good-

The days ahead

Good each day through Sat Oct 17, led by ozone. Yesterday measured 19, good.

Smoke, the next 44 hours

No smoke near the ground through Sun 1 AM.

FriSat

Precipitation

What has fallen at Sussex

0.65 in in the last 24 hours, and none in the 2 days before, to Fri 5 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.65in
Last 3 days
0.65in

Visibility

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

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

FriSat

On the radar over Sussex, WisconsinReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Sussex, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.5 miles away.

measured now4 instruments

Pewaukee WWTPPWKW3

At a water treatment plant/6.3 mi away/912 ft/27 ft below here

temp, wind, gust, humidity, pressure

Rank-

measured daily2 instruments

Sussex 0.8 NNEWI-WK-5

In a volunteer observer's own ground/0.9 mi away/965 ft/26 ft above here

precip, snowfall, snow depth

Rank-

RichrieldRCHW3

At a cooperative observer's station/5.2 mi away/1,073 ft/134 ft above here

snowfall, snow depth, precip, high, low

Rank203of 1,313

Station report

The weather at Waukesha Cnty, drawn

The nearest airport reporting now, 6.6 mi from Sussex, Wisconsin. From its report of Oct 16, 2026, 5:35 AM local time: 3 of its 6 sheets.

The sky

Overcast at 1,400 ft; the ceiling is 1,400 ft; visibility 10 mi or more.

Section of the sky over Waukesha Cnty, height above the station to scale: overcast cloud with its base at 1,400 feet, the ceiling at 1,400 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT UESFIG. A THE SKY OVER WAUKESHA CNTYSECTION, 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 1,400 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 1,400 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEWaukesha Cnty, the skySTATION REPORT · ASOS UESTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-UES-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

50.0 F with a dew point of 48.2 F, 93 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 400 ft up; the lowest cloud reported is at 1,400 ft.

Chart of the air at Waukesha Cnty: temperature 50.0 degrees Fahrenheit and dew point 48.2, 93 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 400 feet above the station, against the lowest cloud reported at 1,400 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT UESFIG. B THE AIR AT WAUKESHA CNTYTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00040 F50 F60 FSATURATES 400 FT ABOVE THE STATION, AT 47.8 FLOWEST CLOUD REPORTED, OVC 1,400 FTTEMPERATURE AND DEW POINT 50.0 F, 48.2 FRELATIVE HUMIDITY 93 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 POINTTITLEWaukesha Cnty, the airSTATION REPORT · ASOS UESTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-UES-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (290 degrees) at 16 mph, gusting 24 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 35 mph.

Plan of the wind at Waukesha Cnty, north up: blowing from 290 degrees, the west northwest, at 16 miles an hour, gusting 24; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT UESFIG. C THE WIND AT WAUKESHA CNTYPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 290°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 16 MPH5FRESH BREEZE19GUST, 24 MPH6STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEWaukesha Cnty, the windSTATION REPORT · ASOS UESTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-UES-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

-

Snow on the ground

Elsewhere in Wisconsin

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

Near Sussex

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

Near Sussex

River and lake gauges