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Marion, Texas

City in Guadalupe County, Texas

Air quality

The air at Marion

Index 36, good, led by fine particles. Read at 2 AM from its reporting area, San Antonio (TX), 23 miles off.

36Good
  • Fine particles (PM2.5)36Good-
  • Ozone31Good-
  • Coarse particles (PM10)19Good-

The days ahead

Good each day through Sun Oct 18, led by ozone. Yesterday measured 47, good.

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 Marion

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 Marion, the next 41 hours

Visibility stays 10 miles or more through Sat 7 PM.

FriSat

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

What is measuring near here

The 5 instruments nearest Marion, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.2 miles away.

measured now3 instruments

measured daily2 instruments

Marion 0.3 ENETX-GP-115

In a volunteer observer's own ground/0.2 mi away/654 ft/5 ft above here

precip, snowfall, snow depth

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Station report

The weather at Randolph AFB, drawn

The nearest airport reporting now, 8.8 mi from Marion, Texas. From its report of Oct 16, 2026, 1:55 AM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 10 mi or more.

Section of the sky over Randolph AFB, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT RNDFIG. A THE SKY OVER RANDOLPH AFBSECTION, 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: 10 MI OR MORE0510TITLERandolph AFB, the skySTATION REPORT · ASOS RNDTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-RND-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

70.5 F with a dew point of 63.7 F, 79 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,600 ft up.

Chart of the air at Randolph AFB: temperature 70.5 degrees Fahrenheit and dew point 63.7, 79 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,600 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT RNDFIG. B THE AIR AT RANDOLPH AFBTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00050 F60 F70 F80 FSATURATES 1,600 FT ABOVE THE STATION, AT 62.1 FTEMPERATURE 70.5 FDEW POINT 63.7 FSPREAD 6.8 FRELATIVE HUMIDITY 79 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 POINTTITLERandolph AFB, the airSTATION REPORT · ASOS RNDTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-RND-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (330 degrees) at 6 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Randolph AFB, north up: blowing from 330 degrees, the north northwest, at 6 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT RNDFIG. C THE WIND AT RANDOLPH AFBPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 330°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 6 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLERandolph AFB, the windSTATION REPORT · ASOS RNDTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-RND-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Randolph AFB, 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 Marion

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

Near Marion

River and lake gauges