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Marengo, Iowa

City in Iowa County, Iowa

Air quality

The air at Marengo

Index 8, good, led by fine particles. Read at 7 PM from its reporting area, Iowa City (IA), 28 miles off.

8Good
  • Fine particles (PM2.5)8Good23.1 mi
  • Ozone-24 ppb23.1 mi
  • Sulfur dioxide0Good0 ppb23.1 mi

The days ahead

Good each day through Sat Oct 17, led by ozone. Yesterday measured 26, good.

Smoke, the next 42 hours

No smoke near the ground through Sun 1 PM.

FriSatSun

Precipitation

What has fallen at Marengo

0.04 in in the last 24 hours, 0.33 in over the last 3 days, to Fri 7 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.04in
Last 3 days
0.33in

Visibility

How far you can see at Marengo, the next 42 hours

Visibility stays 8 miles or more through Sun 1 PM, lowest 8 miles Sat 3 AM.

FriSatSun

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

What is measuring near here

The 6 instruments nearest Marengo, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.5 miles away.

measured now4 instruments

measured daily2 instruments

Marengo 1.3 ESEIA-IA-23

In a volunteer observer's own ground/1.5 mi away/736 ft/1 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Cedar Rapids, drawn

The nearest airport reporting now, 18.8 mi from Marengo, Iowa. From its report of Oct 16, 2026, 7:52 PM local time: 3 of its 6 sheets.

The sky

Clear; visibility 10 mi or more.

Section of the sky over Cedar Rapids, height above the station to scale: a clear sky, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CIDFIG. A THE SKY OVER CEDAR RAPIDSSECTION, 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 STATIONCLEARVISIBILITY, MILES: 10 MI OR MORE0510TITLECedar Rapids, the skySTATION REPORT · ASOS CIDTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-CID-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

46.4 F with a dew point of 35.6 F, 66 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,500 ft up.

Chart of the air at Cedar Rapids: temperature 46.4 degrees Fahrenheit and dew point 35.6, 66 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,500 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CIDFIG. B THE AIR AT CEDAR RAPIDSTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00020 F30 F40 F50 F60 FSATURATES 2,500 FT ABOVE THE STATION, AT 33.2 FTEMPERATURE 46.4 FDEW POINT 35.6 FSPREAD 10.8 FRELATIVE HUMIDITY 66 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 POINTTITLECedar Rapids, the airSTATION REPORT · ASOS CIDTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-CID-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (330 degrees) at 10 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 37 mph.

Plan of the wind at Cedar Rapids, north up: blowing from 330 degrees, the north northwest, at 10 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CIDFIG. C THE WIND AT CEDAR RAPIDSPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 330°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 10 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECedar Rapids, the windSTATION REPORT · ASOS CIDTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-CID-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Williamsburg 3 SE (WLBI4), 9.5 miles from here, read 16 Oct, 07:00. measured daily

Elsewhere in Iowa

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

Near Marengo

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

Near Marengo

River and lake gauges