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Trotwood, Ohio

City in Montgomery County, Ohio

Air quality

The air at Trotwood

Index 53, moderate, led by fine particles. Read at 5 AM from its reporting area, Dayton (OH), 6 miles off.

53Moderate
  • Fine particles (PM2.5)53Moderate-
  • Ozone23Good-
  • Coarse particles (PM10)19Good-

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 41, good.

Smoke, the next 45 hours

No smoke near the ground through Sun 2 AM.

FriSat

Precipitation

What has fallen at Trotwood

0.06 in in the last 24 hours, 0.12 in over the last 3 days, to Fri 4 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.06in
Last 3 days
0.12in

Visibility

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

Mist or haze: visibility falls to 3 miles Fri 12 PM.

FriSat

On the radar over Trotwood, OhioReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Trotwood, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.4 miles away.

measured now4 instruments

DaytonDAY

At an airfield/8.2 mi away/1,001 ft/160 ft above here

temp, wind, gust, visibility, precip, pressure

Rank272of 1,590

measured daily2 instruments

Dayton 5.0 WNWOH-MY-54

In a volunteer observer's own ground/0.4 mi away/834 ft/7 ft below here

precip, snowfall, snow depth

Rank-

DaytonDAYO1

At a cooperative observer's station/6.1 mi away/742 ft/99 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Dayton, drawn

The nearest airport reporting now, 8.2 mi from Trotwood, Ohio. From its report of Oct 16, 2026, 4:56 AM local time: 3 of its 6 sheets.

The sky

A few clouds at 1,700 ft, broken at 6,000 ft, overcast at 11,000 ft; the ceiling is 6,000 ft; visibility 9 mi.

Section of the sky over Dayton, height above the station to scale: a few clouds cloud with its base at 1,700 feet, broken cloud with its base at 6,000 feet, overcast cloud with its base at 11,000 feet, the ceiling at 6,000 feet, and visibility of 9 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DAYFIG. A THE SKY OVER DAYTONSECTION, 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 STATION02,5005,0007,50010,00012,50015,00017,500ETAGESLOWMIDDLEHIGHTHE STATIONTHE CEILOMETER READS TO 12,000 FTOVC 11,000 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 6,000 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYFEW 1,700 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYCEILING 6,000 FTVISIBILITY, MILES: 9 MI0510TITLEDayton, the skySTATION REPORT · ASOS DAYTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-DAY-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018, FB-SKY-013, FB-SKY-014

The air

70.0 F with a dew point of 67.0 F, 90 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 700 ft up; the lowest cloud reported is at 1,700 ft.

Chart of the air at Dayton: temperature 70.0 degrees Fahrenheit and dew point 67.0, 90 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 700 feet above the station, against the lowest cloud reported at 1,700 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DAYFIG. B THE AIR AT DAYTONTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00060 F70 F80 FSATURATES 700 FT ABOVE THE STATION, AT 66.2 FLOWEST CLOUD REPORTED, FEW 1,700 FTTEMPERATURE 70.0 FDEW POINT 67.0 FSPREAD 3.0 FRELATIVE HUMIDITY 90 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 POINTTITLEDayton, the airSTATION REPORT · ASOS DAYTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-DAY-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west southwest (240 degrees) at 17 mph, gusting 29 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 29 mph.

Plan of the wind at Dayton, north up: blowing from 240 degrees, the west southwest, at 17 miles an hour, gusting 29; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DAYFIG. C THE WIND AT DAYTONPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 240°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 17 MPH5FRESH BREEZE196STRONG BREEZE25GUST, 29 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEDayton, the windSTATION REPORT · ASOS DAYTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-DAY-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Ohio

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

Near Trotwood

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

Near Trotwood

River and lake gauges