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DeWitt, Iowa

City in Clinton County, Iowa

Air quality

The air at DeWitt

Index 12, good, led by ozone. Read at 1 PM from its reporting area, Clinton (IA), 18 miles off.

12Good
  • Fine particles (PM2.5)10Good16.9 mi
  • Ozone12Good15 ppb8.4 mi
  • Nitrogen dioxide1Good1 ppb20.2 mi
  • Sulfur dioxide0Good0 ppb16.9 mi
  • Carbon monoxide-0.1 ppm20.2 mi

The days ahead

Yesterday measured 22, good.

Smoke, the next 43 hours

No smoke near the ground through Sun 7 AM.

FriSatSun

Precipitation

What has fallen at DeWitt

0.15 in in the last 24 hours, 0.17 in over the last 3 days, to Fri 12 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.15in
Last 3 days
0.17in

Visibility

How far you can see at DeWitt, the next 43 hours

Visibility stays 4 miles or more through Sun 7 AM, lowest 5 miles Fri 2 PM.

FriSatSun

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

What is measuring near here

The 6 instruments nearest DeWitt, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.8 miles away.

measured now4 instruments

ClintonCWI

At an airfield/10.8 mi away/709 ft/9 ft above here

temp, wind, gust, visibility, precip, pressure

Rank357of 1,060

measured daily2 instruments

DeWitt 0.8 NNWIA-CN-28

In a volunteer observer's own ground/0.8 mi away/674 ft/26 ft below here

precip, snowfall, snow depth

Rank-

De WittDWTI4

At a cooperative observer's station/1.4 mi away/676 ft/24 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Clinton, drawn

The nearest airport reporting now, 10.8 mi from DeWitt, Iowa. From its report of Oct 16, 2026, 12:56 PM local time: 3 of its 6 sheets.

The sky

A few clouds at 2,200 ft, broken at 3,600 ft, overcast at 4,300 ft; the ceiling is 3,600 ft; visibility 10 mi or more.

Section of the sky over Clinton, height above the station to scale: a few clouds cloud with its base at 2,200 feet, broken cloud with its base at 3,600 feet, overcast cloud with its base at 4,300 feet, the ceiling at 3,600 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CWIFIG. A THE SKY OVER CLINTONSECTION, 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 STATION01,0002,0003,0004,0005,0006,0007,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 4,300 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 3,600 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYFEW 2,200 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYCEILING 3,600 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEClinton, the skySTATION REPORT · ASOS CWITYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-CWI-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

54.0 F with a dew point of 46.0 F, 74 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,800 ft up; the lowest cloud reported is at 2,200 ft.

Chart of the air at Clinton: temperature 54.0 degrees Fahrenheit and dew point 46.0, 74 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,800 feet above the station, against the lowest cloud reported at 2,200 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CWIFIG. B THE AIR AT CLINTONTHE 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 1,800 FT ABOVE THE STATION, AT 44.2 FLOWEST CLOUD REPORTED, FEW 2,200 FTTEMPERATURE 54.0 FDEW POINT 46.0 FSPREAD 8.0 FRELATIVE HUMIDITY 74 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 POINTTITLEClinton, the airSTATION REPORT · ASOS CWITYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-CWI-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north (350 degrees) at 17 mph, gusting 24 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 28 mph.

Plan of the wind at Clinton, north up: blowing from 350 degrees, the north, at 17 miles an hour, gusting 24; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CWIFIG. C THE WIND AT CLINTONPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 350°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 17 MPH5FRESH BREEZE19GUST, 24 MPH6STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEClinton, the windSTATION REPORT · ASOS CWITYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-CWI-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Clinton, 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 DeWitt

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

Near DeWitt

River and lake gauges