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Mont Belvieu, Texas

City in Chambers County, Texas

Air quality

The air at Mont Belvieu

Index 41, good, led by fine particles. Read at 2 AM from its reporting area, Houston-Galveston-Brazoria (TX), 30 miles off.

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

The days ahead

Highest moderate, today, led by ozone. Yesterday measured 59, moderate.

Smoke, the next 42 hours

Little smoke near the ground through Sat 7 PM: the index from smoke stays at 17 or under.

FriSat

Precipitation

What has fallen at Mont Belvieu

None in the last 24 hours; 0.07 in over the last 3 days, to Fri 1 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.07in

Visibility

How far you can see at Mont Belvieu, the next 42 hours

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

FriSat

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

What is measuring near here

The 6 instruments nearest Mont Belvieu, 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

BeaumontS2207

At a soil climate station/36.9 mi away/19 ft/19 ft below here

temp, humidity, soil temp, soil moisture

Rank2,694of 4,689

measured daily2 instruments

Mont Belvieu 1.5 ESETX-CHM-4

In a volunteer observer's own ground/0.8 mi away/35 ft/3 ft below here

precip, snowfall, snow depth

Rank-

BaytownBATT2

At a cooperative observer's station/12.0 mi away/59 ft/21 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at La Porte, drawn

The nearest airport reporting now, 17.8 mi from Mont Belvieu, Texas. From its report of Oct 16, 2026, 1:55 AM local time: 3 of its 6 sheets.

The sky

Scattered at 2,000 ft, scattered at 7,000 ft, overcast at 8,000 ft; the ceiling is 8,000 ft; visibility 10 mi or more.

Section of the sky over La Porte, height above the station to scale: scattered cloud with its base at 2,000 feet, scattered cloud with its base at 7,000 feet, overcast cloud with its base at 8,000 feet, the ceiling at 8,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT T41FIG. A THE SKY OVER LA PORTESECTION, 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 STATION02,5005,0007,50010,00012,500ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FTOVC 8,000 FTOVERCAST, 8 EIGHTHS OF THE SKYSCT 7,000 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYSCT 2,000 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 8,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLELa Porte, the skySTATION REPORT · ASOS T41TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-T41-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018, FB-SKY-013, FB-SKY-014

The air

75.2 F with a dew point of 69.8 F, 83 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,300 ft up; the lowest cloud reported is at 2,000 ft.

Chart of the air at La Porte: temperature 75.2 degrees Fahrenheit and dew point 69.8, 83 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,300 feet above the station, against the lowest cloud reported at 2,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT T41FIG. B THE AIR AT LA PORTETHE 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 F90 FSATURATES 1,300 FT ABOVE THE STATION, AT 68.5 FLOWEST CLOUD REPORTED, SCT 2,000 FTTEMPERATURE 75.2 FDEW POINT 69.8 FSPREAD 5.4 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 POINTTITLELa Porte, the airSTATION REPORT · ASOS T41TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-T41-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northeast (30 degrees) at 3 mph: force 1, a light air on the Beaufort scale. The strongest gust today was 20 mph.

Plan of the wind at La Porte, north up: blowing from 30 degrees, the north 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 T41FIG. C THE WIND AT LA PORTEPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 30°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLELa Porte, the windSTATION REPORT · ASOS T41TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-T41-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

-

Snow on the ground

Elsewhere in Texas

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

Near Mont Belvieu

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

Near Mont Belvieu

River and lake gauges