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Otranto, Iowa

Community in Mitchell County, Iowa

Air quality

The air at Otranto

Index 18, good, led by fine particles. Read at 11 PM from its reporting area, Rochester Area (MN), 46 miles off.

18Good
  • Fine particles (PM2.5)18Good-
  • Ozone10Good-

The days ahead

Good each day through Wed Oct 21, led by fine particles. Yesterday measured 19, good.

Smoke, the next 45 hours

No smoke near the ground through Sun 7 PM.

SatSun

Precipitation

What has fallen at Otranto

0.03 in in the last 24 hours, 1.00 in over the last 3 days, to Fri 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.03in
Last 3 days
1.00in

Visibility

How far you can see at Otranto, the next 45 hours

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

SatSun

On the radar over Otranto, IowaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Otranto, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 6.2 miles away.

measured now3 instruments

Mason CityMCW

At an airfield/27.1 mi away/1,214 ft/44 ft above here

temp, wind, gust, visibility, precip, pressure

Rank15of 1,055

measured daily2 instruments

St AnsgarSANI4

At a cooperative observer's station/6.2 mi away/1,138 ft/32 ft below here

snowfall, snow depth, precip, high, low

Rank90of 1,055

St Ansgar 2.8 SIA-MT-2

In a volunteer observer's own ground/9.1 mi away/1,109 ft/61 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Mason City, drawn

The nearest airport reporting now, 27.1 mi from Otranto, Iowa. From its report of Oct 16, 2026, 10:53 PM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 10 mi or more.

Section of the sky over Mason City, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MCWFIG. A THE SKY OVER MASON CITYSECTION, 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 SHEETNO CLOUD DETECTED BELOW 12,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEMason City, the skySTATION REPORT · ASOS MCWTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-MCW-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

33.0 F with a dew point of 29.0 F, 85 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 900 ft up.

Chart of the air at Mason City: temperature 33.0 degrees Fahrenheit and dew point 29.0, 85 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 900 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MCWFIG. B THE AIR AT MASON CITYTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00020 F30 F40 FSATURATES 900 FT ABOVE THE STATION, AT 28.1 FTEMPERATURE 33.0 FDEW POINT 29.0 FSPREAD 4.0 FRELATIVE HUMIDITY 85 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 POINTTITLEMason City, the airSTATION REPORT · ASOS MCWTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-MCW-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northwest (310 degrees) at 5 mph: force 2, a light breeze on the Beaufort scale. The strongest gust today was 41 mph.

Plan of the wind at Mason City, north up: blowing from 310 degrees, the northwest, at 5 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MCWFIG. C THE WIND AT MASON CITYPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 310°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 5 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMason City, the windSTATION REPORT · ASOS MCWTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-MCW-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at St Ansgar (SANI4), 6.2 miles from here, read 16 Oct, 06:30. measured daily

Elsewhere in Iowa

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

Near Otranto

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

Near Otranto

River and lake gauges