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Holly Hills, Colorado

Community in Arapahoe County, Colorado

Air quality

The air at Holly Hills

Index 31, good, led by ozone. Read at 3 AM from its reporting area, Denver-Boulder (CO), 17 miles off.

31Good
  • Fine particles (PM2.5)25Good4.9 mi
  • Ozone31Good30 ppb6.6 mi
  • Coarse particles (PM10)9Good-
  • Nitrogen dioxide3Good3.6 ppb6.6 mi
  • Sulfur dioxide0Good0.6 ppb8.8 mi
  • Carbon monoxide-0.1 ppm6.6 mi

The days ahead

Good each day through Today, led by fine particles. Yesterday measured 36, good.

Smoke, the next 45 hours

No smoke near the ground through Sun 12 AM.

FriSat

Precipitation

What has fallen at Holly Hills

0.01 in in the last 24 hours, 0.30 in over the last 3 days, to Fri 3 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.01in
Last 3 days
0.30in

Visibility

How far you can see at Holly Hills, the next 45 hours

Visibility stays 10 miles or more through Sun 12 AM.

FriSat

On the radar over Holly Hills, ColoradoReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Holly Hills, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.4 miles away.

measured now4 instruments

measured daily2 instruments

Englewood #2ENLC2

At a cooperative observer's station/4.0 mi away/5,430 ft/56 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Denver/Centennial, drawn

The nearest airport reporting now, 7.8 mi from Holly Hills, Colorado. From its report of Oct 16, 2026, 3:53 AM local time: 3 of its 6 sheets.

The sky

Overcast at 3,500 ft; the ceiling is 3,500 ft; visibility 10 mi or more.

Section of the sky over Denver/Centennial, height above the station to scale: overcast cloud with its base at 3,500 feet, the ceiling at 3,500 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT APAFIG. A THE SKY OVER DENVER/CENTENNIALSECTION, 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 STATION01,0002,0003,0004,0005,0006,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 3,500 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 3,500 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEDenver/Centennial, the skySTATION REPORT · ASOS APATYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-APA-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

36.0 F with a dew point of 19.0 F, 50 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 3,800 ft up; the lowest cloud reported is at 3,500 ft.

Chart of the air at Denver/Centennial: temperature 36.0 degrees Fahrenheit and dew point 19.0, 50 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 3,800 feet above the station, against the lowest cloud reported at 3,500 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT APAFIG. B THE AIR AT DENVER/CENTENNIALTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0000 F10 F20 F30 F40 F50 FSATURATES 3,800 FT ABOVE THE STATION, AT 15.5 FLOWEST CLOUD REPORTED, OVC 3,500 FTTEMPERATURE 36.0 FDEW POINT 19.0 FSPREAD 17.0 FRELATIVE HUMIDITY 50 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 POINTTITLEDenver/Centennial, the airSTATION REPORT · ASOS APATYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-APA-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northeast (30 degrees) at 7 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Denver/Centennial, north up: blowing from 30 degrees, the north northeast, at 7 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 APAFIG. C THE WIND AT DENVER/CENTENNIALPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 30°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 7 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEDenver/Centennial, the windSTATION REPORT · ASOS APATYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-APA-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Denver/Centennial, 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 Holly Hills

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

Near Holly Hills

River and lake gauges