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St. Anthony, Iowa

City in Marshall County, Iowa

Air quality

The air at St. Anthony

Index 14, good, led by ozone. Read at 10 PM from its reporting area, Des Moines (IA), 47 miles off.

14Good
  • Fine particles (PM2.5)11Good-
  • Ozone14Good-

The days ahead

Highest moderate, today, led by fine particles. Yesterday measured 20, good.

Smoke, the next 46 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at St. Anthony

1.00 in in the last 24 hours, 1.05 in over the last 3 days, to Thu 9 PM. Measured by radar and rain gauges, as water.

Last 24 hours
1.00in
Last 3 days
1.05in

Visibility

How far you can see at St. Anthony, the next 46 hours

Visibility stays 7 miles or more through Sat 7 PM, lowest 8 miles Sat 4 AM.

FriSat

On the radar over St. Anthony, IowaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 8 instruments nearest St. Anthony, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 5.5 miles away.

measured now6 instruments

MarshalltownMIW

At an airfield/14.5 mi away/974 ft/42 ft below here

temp, wind, gust, visibility, precip, pressure

Rank8of 1,060

AmesS2031

At a soil climate station/28.1 mi away/1,073 ft/57 ft above here

temp, humidity, soil temp, soil moisture

Rank748of 1,060

Ames ScanAMMI4

At a river or reservoir gauge/28.5 mi away/1,073 ft/57 ft above here

temp, wind, gust, humidity, pressure

Rank720of 1,060

measured daily2 instruments

ZearingZRGI4

At a cooperative observer's station/5.5 mi away/1,056 ft/40 ft above here

snowfall, snow depth, precip, high, low

Rank-

Zearing 0.3 NNWIA-SR-48

In a volunteer observer's own ground/5.8 mi away/1,089 ft/73 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Marshalltown, drawn

The nearest airport reporting now, 14.5 mi from St. Anthony, Iowa. From its report of Oct 15, 2026, 10:23 PM local time: 3 of its 6 sheets.

The sky

Scattered at 2,800 ft, overcast at 3,900 ft; the ceiling is 3,900 ft; visibility 10 mi or more.

Section of the sky over Marshalltown, height above the station to scale: scattered cloud with its base at 2,800 feet, overcast cloud with its base at 3,900 feet, the ceiling at 3,900 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MIWFIG. A THE SKY OVER MARSHALLTOWNSECTION, 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 STATION01,0002,0003,0004,0005,0006,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 3,900 FTOVERCAST, 8 EIGHTHS OF THE SKYSCT 2,800 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 3,900 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEMarshalltown, the skySTATION REPORT · ASOS MIWTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-MIW-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 44.0 F, 77 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,600 ft up; the lowest cloud reported is at 2,800 ft.

Chart of the air at Marshalltown: temperature 51.0 degrees Fahrenheit and dew point 44.0, 77 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,600 feet above the station, against the lowest cloud reported at 2,800 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MIWFIG. B THE AIR AT MARSHALLTOWNTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00030 F40 F50 F60 FSATURATES 1,600 FT ABOVE THE STATION, AT 42.4 FLOWEST CLOUD REPORTED, SCT 2,800 FTTEMPERATURE 51.0 FDEW POINT 44.0 FSPREAD 7.0 FRELATIVE HUMIDITY 77 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 POINTTITLEMarshalltown, the airSTATION REPORT · ASOS MIWTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-MIW-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northwest (320 degrees) at 22 mph, gusting 32 mph: force 5, a fresh breeze on the Beaufort scale. The strongest gust today was 37 mph.

Plan of the wind at Marshalltown, north up: blowing from 320 degrees, the northwest, at 22 miles an hour, gusting 32; beside it the Beaufort scale from calm to hurricane force, force 5, fresh breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MIWFIG. C THE WIND AT MARSHALLTOWNPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 320°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE19NOW, 22 MPH6STRONG BREEZE257NEAR GALE32GUST, 32 MPH8GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMarshalltown, the windSTATION REPORT · ASOS MIWTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-MIW-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

-

Snow on the ground

Elsewhere in Iowa

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

Near St. Anthony

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

Near St. Anthony

River and lake gauges