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Mountain City, Texas

City in Hays County, Texas

Air quality

The air at Mountain City

Index 41, good, led by ozone. Read at 10 PM from its reporting area, Austin (TX), 18 miles off.

41Good
  • Fine particles (PM2.5)29Good-
  • Ozone41Good-
  • Coarse particles (PM10)22Good-

The days ahead

Highest moderate, today, led by ozone. Yesterday measured 36, good.

Smoke, the next 46 hours

Little smoke near the ground through Sat 7 PM: the index from smoke stays at 11 or under.

FriSat

Precipitation

What has fallen at Mountain City

None in the last 3 days, to Thu 9 PM. 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 Mountain City, the next 46 hours

Visibility stays 5 miles or more through Sat 7 PM, lowest 5 miles Fri 9 AM.

FriSat

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

What is measuring near here

The 6 instruments nearest Mountain City, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.5 miles away.

measured now4 instruments

measured daily2 instruments

Kyle 1.8 NNWTX-HYS-108

In a volunteer observer's own ground/1.5 mi away/763 ft/75 ft below here

precip, snowfall, snow depth

Rank-

San Marcos Electric UtilitySAST2

At a cooperative observer's station/12.0 mi away/572 ft/266 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at San Marcos (AWOS), drawn

The nearest airport reporting now, 10.2 mi from Mountain City, Texas. From its report of Oct 15, 2026, 9:56 PM 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 San Marcos (AWOS), 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 HYIFIG. A THE SKY OVER SAN MARCOS (AWOS)SECTION, 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 MORE0510TITLESan Marcos (AWOS), the skySTATION REPORT · ASOS HYITYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-HYI-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

75.0 F with a dew point of 62.0 F, 64 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 3,000 ft up.

Chart of the air at San Marcos (AWOS): temperature 75.0 degrees Fahrenheit and dew point 62.0, 64 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 3,000 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HYIFIG. B THE AIR AT SAN MARCOS (AWOS)THE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00050 F60 F70 F80 F90 FSATURATES 3,000 FT ABOVE THE STATION, AT 59.0 FTEMPERATURE 75.0 FDEW POINT 62.0 FSPREAD 13.0 FRELATIVE HUMIDITY 64 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 POINTTITLESan Marcos (AWOS), the airSTATION REPORT · ASOS HYITYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-HYI-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the east (100 degrees) at 6 mph: force 2, a light breeze on the Beaufort scale. The strongest gust today was 18 mph.

Plan of the wind at San Marcos (AWOS), north up: blowing from 100 degrees, the east, 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 HYIFIG. C THE WIND AT SAN MARCOS (AWOS)PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 100°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 6 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLESan Marcos (AWOS), the windSTATION REPORT · ASOS HYITYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-HYI-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of San Marcos (AWOS), 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 Mountain City

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

Near Mountain City

River and lake gauges