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Shellsburg, Iowa

City in Benton County, Iowa

Air quality

The air at Shellsburg

Index 12, good, led by fine particles. Read at 11 PM from its reporting area, Iowa City (IA), 34 miles off.

12Good
  • Fine particles (PM2.5)12Good12.2 mi
  • Ozone-15 ppb12.2 mi
  • Sulfur dioxide0Good0 ppb12.2 mi

The days ahead

Good each day through Today, led by ozone. Yesterday measured 36, good.

Smoke, the next 44 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Shellsburg

0.92 in in the last 24 hours, and none in the 2 days before, to Thu 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.92in
Last 3 days
0.92in

Visibility

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

Visibility stays 7 miles or more through Sat 7 PM, lowest 8 miles Sat 6 AM.

FriSat

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

What is measuring near here

The 6 instruments nearest Shellsburg, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.2 miles away.

measured now4 instruments

VintonVTI

At an airfield/11.7 mi away/837 ft/62 ft above here

temp, wind, gust, visibility, precip, pressure

Rank816of 1,060

measured daily2 instruments

Shellsburg 0.1 NIA-BT-25

In a volunteer observer's own ground/0.2 mi away/799 ft/24 ft above here

precip, snowfall, snow depth

Rank-

VintonVNTI4

At a cooperative observer's station/8.3 mi away/768 ft/7 ft below here

snowfall, snow depth, precip, high, low

Rank24of 1,060

Station report

The weather at Vinton, drawn

The nearest airport reporting now, 11.7 mi from Shellsburg, Iowa. From its report of Oct 15, 2026, 11:55 PM local time: 3 of its 6 sheets.

The sky

Scattered at 4,400 ft, overcast at 5,000 ft; the ceiling is 5,000 ft; visibility 10 mi or more.

Section of the sky over Vinton, height above the station to scale: scattered cloud with its base at 4,400 feet, overcast cloud with its base at 5,000 feet, the ceiling at 5,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT VTIFIG. A THE SKY OVER VINTONSECTION, 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 STATION01,0002,0003,0004,0005,0006,0007,0008,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 5,000 FTOVERCAST, 8 EIGHTHS OF THE SKYSCT 4,400 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 5,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEVinton, the skySTATION REPORT · ASOS VTITYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-VTI-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 41.0 F, 71 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,100 ft up; the lowest cloud reported is at 4,400 ft.

Chart of the air at Vinton: temperature 50.0 degrees Fahrenheit and dew point 41.0, 71 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,100 feet above the station, against the lowest cloud reported at 4,400 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT VTIFIG. B THE AIR AT VINTONTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,00030 F40 F50 F60 FSATURATES 2,100 FT ABOVE THE STATION, AT 39.0 FLOWEST CLOUD REPORTED, SCT 4,400 FTTEMPERATURE 50.0 FDEW POINT 41.0 FSPREAD 9.0 FRELATIVE HUMIDITY 71 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 POINTTITLEVinton, the airSTATION REPORT · ASOS VTITYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-VTI-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northwest (320 degrees) at 14 mph, gusting 26 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 30 mph.

Plan of the wind at Vinton, north up: blowing from 320 degrees, the northwest, at 14 miles an hour, gusting 26; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT VTIFIG. C THE WIND AT VINTONPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 320°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 14 MPH5FRESH BREEZE196STRONG BREEZE25GUST, 26 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEVinton, the windSTATION REPORT · ASOS VTITYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-VTI-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Iowa

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

Near Shellsburg

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

Near Shellsburg

River and lake gauges