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Hamilton, Ohio

City in Butler County, Ohio

Air quality

The air at Hamilton

Index 28, good, led by fine particles. Read at 12 AM from its reporting area, Cincinnati (OH), 21 miles off.

28Good
  • Fine particles (PM2.5)28Good-
  • Ozone17Good-

The days ahead

Highest 55, moderate, Mon Oct 19, led by fine particles. Yesterday measured 52, moderate.

Smoke, the next 45 hours

No smoke near the ground through Sun 8 PM.

SatSun

Precipitation

What has fallen at Hamilton

0.19 in in the last 24 hours, 0.66 in over the last 3 days, to Fri 11 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.19in
Last 3 days
0.66in

Visibility

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

Visibility stays 10 miles or more through Sun 8 PM.

SatSun

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

What is measuring near here

The 6 instruments nearest Hamilton, 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

HamiltonHAO

At an airfield/3.6 mi away/617 ft/28 ft above here

temp, wind, gust, visibility, precip, pressure

Rank266of 1,605

measured daily2 instruments

Hamilton 1.1 NOH-BT-10

In a volunteer observer's own ground/0.4 mi away/633 ft/44 ft above here

precip, snowfall, snow depth

Rank-

FairfieldFRFO1

At a cooperative observer's station/3.6 mi away/574 ft/15 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Hamilton, drawn

The nearest airport reporting now, 3.6 mi from Hamilton, Ohio. From its report of Oct 17, 2026, 12:10 AM local time: 3 of its 6 sheets.

The sky

A few clouds at 1,300 ft, overcast at 3,800 ft; the ceiling is 3,800 ft; visibility 10 mi or more.

Section of the sky over Hamilton, height above the station to scale: a few clouds cloud with its base at 1,300 feet, overcast cloud with its base at 3,800 feet, the ceiling at 3,800 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HAOFIG. A THE SKY OVER HAMILTONSECTION, 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 3,800 FTOVERCAST, 8 EIGHTHS OF THE SKYFEW 1,300 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYCEILING 3,800 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEHamilton, the skySTATION REPORT · ASOS HAOTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-HAO-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 45.0 F, 83 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,100 ft up; the lowest cloud reported is at 1,300 ft.

Chart of the air at Hamilton: temperature 50.0 degrees Fahrenheit and dew point 45.0, 83 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,100 feet above the station, against the lowest cloud reported at 1,300 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HAOFIG. B THE AIR AT HAMILTONTHE 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 1,100 FT ABOVE THE STATION, AT 43.9 FLOWEST CLOUD REPORTED, FEW 1,300 FTTEMPERATURE 50.0 FDEW POINT 45.0 FSPREAD 5.0 FRELATIVE HUMIDITY 83 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 POINTTITLEHamilton, the airSTATION REPORT · ASOS HAOTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-HAO-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north (350 degrees) at 10 mph, gusting 30 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 32 mph.

Plan of the wind at Hamilton, north up: blowing from 350 degrees, the north, at 10 miles an hour, gusting 30; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HAOFIG. C THE WIND AT HAMILTONPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 350°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 10 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE25GUST, 30 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEHamilton, the windSTATION REPORT · ASOS HAOTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-HAO-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Hamilton, 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 Hamilton

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

Near Hamilton

River and lake gauges