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Tomball, Texas

City in Harris County, Texas

Air quality

The air at Tomball

Index 41, good, led by fine particles. Read at 2 AM from its reporting area, Houston-Galveston-Brazoria (TX), 29 miles off.

41Good
  • Fine particles (PM2.5)41Good-
  • Ozone31Good-
  • Coarse particles (PM10)31Good-

The days ahead

Highest moderate, today, led by ozone. Yesterday measured 74, moderate.

Smoke, the next 41 hours

Little smoke near the ground through Sat 7 PM: the index from smoke stays at 6 or under.

FriSat

Precipitation

What has fallen at Tomball

None in the last 3 days, to Fri 1 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.00in

Visibility

How far you can see at Tomball, the next 41 hours

Visibility stays 7 miles or more through Sat 7 PM, lowest 8 miles Fri 6 AM.

FriSat

On the radar over Tomball, TexasReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Tomball, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.8 miles away.

measured now4 instruments

measured daily2 instruments

Tomball 2.4 SETX-HRR-336

In a volunteer observer's own ground/2.8 mi away/165 ft/26 ft below here

precip, snowfall, snow depth

Rank-

Site 1CNRT2

At a cooperative observer's station/18.2 mi away/253 ft/62 ft above here

snowfall, snow depth, precip, high, low

Rank2,728of 4,689

Station report

The weather at Houston/D.W. Hooks, drawn

The nearest airport reporting now, 4.5 mi from Tomball, Texas. From its report of Oct 16, 2026, 1:53 AM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 9 mi.

Section of the sky over Houston/D.W. Hooks, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 9 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DWHFIG. A THE SKY OVER HOUSTON/D.W. HOOKSSECTION, 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 STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETNO CLOUD DETECTED BELOW 12,000 FTVISIBILITY, MILES: 9 MI0510TITLEHouston/D.W. Hooks, the skySTATION REPORT · ASOS DWHTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-DWH-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

71.0 F with a dew point of 70.0 F, 97 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 200 ft up.

Chart of the air at Houston/D.W. Hooks: temperature 71.0 degrees Fahrenheit and dew point 70.0, 97 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 200 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DWHFIG. B THE AIR AT HOUSTON/D.W. HOOKSTHE 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 200 FT ABOVE THE STATION, AT 69.7 FTEMPERATURE AND DEW POINT 71.0 F, 70.0 FRELATIVE HUMIDITY 97 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 POINTTITLEHouston/D.W. Hooks, the airSTATION REPORT · ASOS DWHTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-DWH-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northeast (40 degrees) at 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Houston/D.W. Hooks, north up: blowing from 40 degrees, the northeast, at 3 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DWHFIG. C THE WIND AT HOUSTON/D.W. HOOKSPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 40°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEHouston/D.W. Hooks, the windSTATION REPORT · ASOS DWHTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-DWH-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Houston/D.W. Hooks, in 6 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in Texas

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

Near Tomball

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

Near Tomball

River and lake gauges