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Centennial, Colorado

City in Arapahoe County, Colorado

Air quality

The air at Centennial

Index 31, good, led by ozone. Read at 3 AM from its reporting area, Denver-Boulder (CO), 23 miles off.

31Good
  • Fine particles (PM2.5)25Good10.4 mi
  • Ozone31Good32 ppb2.9 mi
  • Coarse particles (PM10)9Good-
  • Nitrogen dioxide4Good4.7 ppb11.3 mi
  • Sulfur dioxide0Good0.4 ppb11.9 mi
  • Carbon monoxide-0.2 ppm11.3 mi

The days ahead

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

Smoke, the next 46 hours

No smoke near the ground through Sun 12 AM.

FriSat

Precipitation

What has fallen at Centennial

0.01 in in the last 24 hours, 0.23 in over the last 3 days, to Fri 2 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.01in
Last 3 days
0.23in

Visibility

How far you can see at Centennial, the next 46 hours

Visibility stays 10 miles or more through Sun 12 AM.

FriSat

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

What is measuring near here

The 6 instruments nearest Centennial, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.8 miles away.

measured now4 instruments

measured daily2 instruments

Centennial 1.3 WSWCO-AR-323

In a volunteer observer's own ground/0.9 mi away/5,706 ft/40 ft above here

precip, snowfall, snow depth

Rank-

LonetreeLNTC2

At a cooperative observer's station/3.0 mi away/5,906 ft/240 ft above here

snowfall, snow depth, precip, high, low

Rank1,550of 2,650

Station report

The weather at Denver/Centennial, drawn

The nearest airport reporting now, 3.4 mi from Centennial, Colorado. From its report of Oct 16, 2026, 2:53 AM local time: 3 of its 6 sheets.

The sky

Broken at 3,700 ft; the ceiling is 3,700 ft; visibility 10 mi or more.

Section of the sky over Denver/Centennial, height above the station to scale: broken cloud with its base at 3,700 feet, the ceiling at 3,700 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 SHEETBKN 3,700 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 3,700 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

37.0 F with a dew point of 24.0 F, 59 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,900 ft up; the lowest cloud reported is at 3,700 ft.

Chart of the air at Denver/Centennial: temperature 37.0 degrees Fahrenheit and dew point 24.0, 59 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,900 feet above the station, against the lowest cloud reported at 3,700 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 STATION01,0002,0003,0004,0005,00010 F20 F30 F40 F50 FSATURATES 2,900 FT ABOVE THE STATION, AT 21.3 FLOWEST CLOUD REPORTED, BKN 3,700 FTTEMPERATURE 37.0 FDEW POINT 24.0 FSPREAD 13.0 FRELATIVE HUMIDITY 59 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 (360 degrees) at 9 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at Denver/Centennial, north up: blowing from 360 degrees, the north, at 9 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 3, gentle 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 360°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 9 MPH4MODERATE 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

0in

Snow on the ground

Measured at Lonetree (LNTC2), 3.0 miles from here, read 15 Oct, 07:00. measured daily

Elsewhere in Colorado

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

Near Centennial

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

Near Centennial

River and lake gauges