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Portage, Wisconsin

City in Columbia County, Wisconsin

Air quality

The air at Portage

Index 12, good, led by ozone. Read at 11 PM from its reporting area, Central Waters South (WI), 17 miles off.

12Good
  • Fine particles (PM2.5)7Good13.2 mi
  • Ozone12Good13 ppb13.2 mi
  • Coarse particles (PM10)4Good13.2 mi

The days ahead

Good each day through Sat Oct 17, led by ozone. Yesterday measured 22, good.

Smoke, the next 44 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Portage

0.93 in in the last 24 hours, 1.05 in over the last 3 days, to Thu 11 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.93in
Last 3 days
1.05in

Visibility

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

Visibility stays 7 miles or more through Sat 7 PM, lowest 7 miles Fri 12 AM.

FriSat

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

What is measuring near here

The 6 instruments nearest Portage, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.7 miles away.

measured now4 instruments

PardeevillePEEW3

At a river or reservoir gauge/8.3 mi away/820 ft/20 ft above here

temp, wind, gust, humidity, pressure

Rank448of 1,313

measured daily2 instruments

PortagePORW3

At a cooperative observer's station/1.7 mi away/771 ft/29 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Dells/Baraboo, drawn

The nearest airport reporting now, 15.4 mi from Portage, Wisconsin. From its report of Oct 15, 2026, 11:55 PM local time: 3 of its 6 sheets.

The sky

Overcast at 1,300 ft; the ceiling is 1,300 ft; visibility 10 mi or more.

Section of the sky over Dells/Baraboo, height above the station to scale: overcast cloud with its base at 1,300 feet, the ceiling at 1,300 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DLLFIG. A THE SKY OVER DELLS/BARABOOSECTION, 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 1,300 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 1,300 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEDells/Baraboo, the skySTATION REPORT · ASOS DLLTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-DLL-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 47.7 F, 92 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 500 ft up; the lowest cloud reported is at 1,300 ft.

Chart of the air at Dells/Baraboo: temperature 50.0 degrees Fahrenheit and dew point 47.7, 92 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 500 feet above the station, against the lowest cloud reported at 1,300 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DLLFIG. B THE AIR AT DELLS/BARABOOTHE 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 500 FT ABOVE THE STATION, AT 47.1 FLOWEST CLOUD REPORTED, OVC 1,300 FTTEMPERATURE AND DEW POINT 50.0 F, 47.7 FRELATIVE HUMIDITY 92 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 POINTTITLEDells/Baraboo, the airSTATION REPORT · ASOS DLLTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-DLL-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 12 mph, gusting 24 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 24 mph.

Plan of the wind at Dells/Baraboo, north up: blowing from 290 degrees, the west northwest, at 12 miles an hour, gusting 24; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DLLFIG. C THE WIND AT DELLS/BARABOOPLAN, 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 BREEZE19GUST, 24 MPH6STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEDells/Baraboo, the windSTATION REPORT · ASOS DLLTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-DLL-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Wisconsin

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

Near Portage

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

Near Portage

River and lake gauges