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Rio, Wisconsin

Village in Columbia County, Wisconsin

Air quality

The air at Rio

Index 17, good, led by ozone. Read at 2 AM from its reporting area, Madison Area (WI), 28 miles off.

17Good
  • Fine particles (PM2.5)5Good-
  • Ozone17Good-
  • Coarse particles (PM10)3Good-

The days ahead

Good each day through Sat Oct 17, led by ozone. Yesterday measured 13, good.

Smoke, the next 41 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Rio

1.15 in in the last 24 hours, and none in the 2 days before, to Fri 1 AM. Measured by radar and rain gauges, as water.

Last 24 hours
1.15in
Last 3 days
1.15in

Visibility

How far you can see at Rio, the next 41 hours

Visibility stays 8 miles or more through Sat 7 PM, lowest 9 miles Fri 5 AM.

FriSat

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

What is measuring near here

The 6 instruments nearest Rio, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.9 miles away.

measured now4 instruments

PardeevillePEEW3

At a river or reservoir gauge/7.1 mi away/820 ft/113 ft below here

temp, wind, gust, humidity, pressure

Rank448of 1,313

MadisonMSN

At an airfield/21.8 mi away/856 ft/77 ft below here

temp, wind, gust, visibility, precip, pressure

Rank8of 1,313

measured daily2 instruments

Portage 3SEPGEW3

At a cooperative observer's station/9.4 mi away/804 ft/129 ft below here

snowfall, snow depth, precip, high, low

Rank215of 1,313

Station report

The weather at Madison, drawn

The nearest airport reporting now, 21.8 mi from Rio, Wisconsin. From its report of Oct 16, 2026, 1:53 AM local time: 3 of its 6 sheets.

The sky

Overcast at 2,100 ft; the ceiling is 2,100 ft; visibility 10 mi or more.

Section of the sky over Madison, height above the station to scale: overcast cloud with its base at 2,100 feet, the ceiling at 2,100 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MSNFIG. A THE SKY OVER MADISONSECTION, 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 STATION05001,0001,5002,0002,5003,0003,500ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 2,100 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 2,100 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEMadison, the skySTATION REPORT · ASOS MSNTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-MSN-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

51.0 F with a dew point of 45.0 F, 80 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,400 ft up; the lowest cloud reported is at 2,100 ft.

Chart of the air at Madison: temperature 51.0 degrees Fahrenheit and dew point 45.0, 80 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,400 feet above the station, against the lowest cloud reported at 2,100 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MSNFIG. B THE AIR AT MADISONTHE 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 1,400 FT ABOVE THE STATION, AT 43.7 FLOWEST CLOUD REPORTED, OVC 2,100 FTTEMPERATURE 51.0 FDEW POINT 45.0 FSPREAD 6.0 FRELATIVE HUMIDITY 80 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 POINTTITLEMadison, the airSTATION REPORT · ASOS MSNTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-MSN-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northwest (310 degrees) at 10 mph, gusting 21 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 32 mph.

Plan of the wind at Madison, north up: blowing from 310 degrees, the northwest, at 10 miles an hour, gusting 21; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MSNFIG. C THE WIND AT MADISONPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 310°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 10 MPH4MODERATE BREEZE135FRESH BREEZE19GUST, 21 MPH6STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMadison, the windSTATION REPORT · ASOS MSNTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-MSN-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Portage 3SE (PGEW3), 9.4 miles from here, read 15 Oct, 08:00. measured daily

Elsewhere in Wisconsin

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

Near Rio

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

Near Rio

River and lake gauges