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San Acacio, Colorado

Community in Costilla County, Colorado

Air quality

The air at San Acacio

Index 29, good, led by fine particles. Read at 1 AM from its reporting area, San Luis Valley (CO), 30 miles off.

29Good
  • Fine particles (PM2.5)29Good-
  • Coarse particles (PM10)12Good-

The days ahead

Good each day through Today, led by fine particles. Yesterday measured 18, good.

Smoke, the next 41 hours

No smoke near the ground through Sat 6 PM.

FriSat

Precipitation

What has fallen at San Acacio

None in the last 24 hours; 0.10 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
0.10in

Visibility

How far you can see at San Acacio, the next 41 hours

Visibility stays 10 miles or more through Sat 6 PM.

FriSat

On the radar over San Acacio, ColoradoReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest San Acacio, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.5 miles away.

measured now3 instruments

measured daily2 instruments

San Acacio 3.1 SECO-CS-34

In a volunteer observer's own ground/2.5 mi away/7,821 ft/90 ft above here

precip, snowfall, snow depth

Rank-

Alamosa 2SALBC2

At a cooperative observer's station/22.7 mi away/7,536 ft/195 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Alamosa Muni(AWOS), drawn

The nearest airport reporting now, 22.6 mi from San Acacio, Colorado. From its report of Oct 16, 2026, 1:52 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 Alamosa Muni(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 ALSFIG. A THE SKY OVER ALAMOSA MUNI(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 MORE0510TITLEAlamosa Muni(AWOS), the skySTATION REPORT · ASOS ALSTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-ALS-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

27.0 F with a dew point of 25.0 F, 92 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 500 ft up.

Chart of the air at Alamosa Muni(AWOS): temperature 27.0 degrees Fahrenheit and dew point 25.0, 92 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 500 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT ALSFIG. B THE AIR AT ALAMOSA MUNI(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 STATION01,0002,0003,00010 F20 F30 F40 FSATURATES 500 FT ABOVE THE STATION, AT 24.5 FTEMPERATURE AND DEW POINT 27.0 F, 25.0 FRELATIVE HUMIDITY 92 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 POINTTITLEAlamosa Muni(AWOS), the airSTATION REPORT · ASOS ALSTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-ALS-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Alamosa Muni(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 ALSFIG. C THE WIND AT ALAMOSA MUNI(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 FORCE73TITLEAlamosa Muni(AWOS), the windSTATION REPORT · ASOS ALSTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-ALS-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Alamosa Muni(AWOS), in 6 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in Colorado

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

Near San Acacio

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

Near San Acacio

River and lake gauges