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Bow Mar, Colorado

Town in Arapahoe County, Colorado

Air quality

The air at Bow Mar

Index 39, good, led by ozone. Read at 12 PM from its reporting area, Denver-Boulder (CO), 19 miles off.

39Good
  • Fine particles (PM2.5)30Good9 mi
  • Ozone39Good39 ppb6.5 mi
  • Coarse particles (PM10)14Good-
  • Nitrogen dioxide9Good10.8 ppb9 mi
  • Sulfur dioxide0Good0.7 ppb9 mi
  • Carbon monoxide-0.2 ppm10.6 mi

The days ahead

Good each day through Sat Oct 17, led by fine particles. Yesterday measured 36, good.

Smoke, the next 43 hours

No smoke near the ground through Sun 6 AM.

FriSatSun

Precipitation

What has fallen at Bow Mar

None in the last 24 hours; 0.68 in over the last 3 days, to Fri 11 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.68in

Visibility

How far you can see at Bow Mar, the next 43 hours

Visibility stays 10 miles or more through Sun 6 AM.

FriSatSun

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

What is measuring near here

The 7 instruments nearest Bow Mar, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.3 miles away.

measured now5 instruments

measured daily2 instruments

Sheridan 2.1 SWCO-AR-432

In a volunteer observer's own ground/0.3 mi away/5,510 ft/20 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Denver/Centennial, drawn

The nearest airport reporting now, 11.4 mi from Bow Mar, Colorado. From its report of Oct 16, 2026, 11:53 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 Denver/Centennial, 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 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 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 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

The air

49.0 F with a dew point of 19.0 F, 30 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 6,700 ft up.

Chart of the air at Denver/Centennial: temperature 49.0 degrees Fahrenheit and dew point 19.0, 30 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 6,700 feet above the station; 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 STATION02,0004,0006,0008,0000 F10 F20 F30 F40 F50 F60 FSATURATES 6,700 FT ABOVE THE STATION, AT 13.0 FTEMPERATURE 49.0 FDEW POINT 19.0 FSPREAD 30.0 FRELATIVE HUMIDITY 30 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

Calm.

Plan of the wind at Denver/Centennial, 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 APAFIG. C THE WIND AT DENVER/CENTENNIALPLAN, 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 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 Marston Filter Plant (LTLC2), 0.9 miles from here, read 16 Oct, 08:55. measured daily

Elsewhere in Colorado

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

Near Bow Mar

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

Near Bow Mar

River and lake gauges