Storm Station
San Marcos, Texas
74°
Mostly clear· Feels like 74°·Light air 1 mph SE
Mostly sunny, with a high near 97. Heat index values as high as 101. South wind 0 to 5 mph.
-UV
-Air quality
62%Humidity
20%Cloud

What is measuring near here

The 4 instruments nearest San Marcos, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.6 miles away.

measured now2 instruments

San Marcos (AWOS)HYI

At an airfield/4.5 mi away/597 ft/16 ft above here

temp, wind, gust, visibility, precip, pressure

Rank6of 2,457

San Marcos 6NW RAWSSRWT2

A remote fire weather station/5.7 mi away/863 ft/282 ft above here

temp, wind, gust, humidity, pressure

Rank319of 2,457

measured daily2 instruments

San Marcos 0.1 SSWTX-HYS-190

In a volunteer observer's own ground/0.6 mi away/582 ft/1 ft above here

precip, snowfall, snow depth

Rank-

San Marcos Electric UtilitySAST2

At a cooperative observer's station/1.4 mi away/572 ft/9 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at San Marcos (AWOS), drawn

The nearest airport reporting now, 4.5 mi from San Marcos. From its report of Sep 27, 2026, 6:56 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 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 6DATE2026-09-27IDSR-HYI-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

70.0 F with a dew point of 65.0 F, 84 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,200 ft up.

Chart of the air at San Marcos (AWOS): temperature 70.0 degrees Fahrenheit and dew point 65.0, 84 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,200 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 STATION01,0002,0003,00050 F60 F70 F80 FSATURATES 1,200 FT ABOVE THE STATION, AT 63.8 FTEMPERATURE 70.0 FDEW POINT 65.0 FSPREAD 5.0 FRELATIVE HUMIDITY 84 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 6DATE2026-09-27IDSR-HYI-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at San Marcos (AWOS), north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, 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 STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLESan Marcos (AWOS), the windSTATION REPORT · ASOS HYITYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-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

-in

Snow on the ground

Elsewhere in Texas

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

Near San Marcos

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