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Lazy Acres, Colorado

Community in Boulder County, Colorado

Air quality

The air at Lazy Acres

Index 31, good, led by ozone. Read at 3 AM from its reporting area, Denver-Boulder (CO), 19 miles off.

31Good
  • Fine particles (PM2.5)25Good5.4 mi
  • Ozone31Good23 ppb5.3 mi
  • Coarse particles (PM10)9Good5.4 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 Lazy Acres

0.02 in in the last 24 hours, 0.71 in over the last 3 days, to Fri 2 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.02in
Last 3 days
0.71in

Visibility

How far you can see at Lazy Acres, the next 46 hours

Visibility stays 6 miles or more through Sun 12 AM, lowest 7 miles Fri 3 AM.

FriSat

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

What is measuring near here

The 7 instruments nearest Lazy Acres, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.7 miles away.

measured now5 instruments

BoulderBDU

At an airfield/5.8 mi away/5,289 ft/1,414 ft below here

temp, wind, gust, visibility, precip, pressure

Rank1,442of 2,650

Ward (35)CO044

Beside a road/9.2 mi away/9,155 ft/2,452 ft above here

temp, pavement temp, wind, visibility, precip

Rank2,575of 2,650

measured daily2 instruments

Boulder 5.4 NWCO-BO-163

In a volunteer observer's own ground/0.7 mi away/7,136 ft/433 ft above here

precip, snowfall, snow depth

Rank-

Lyons 7STHUC2

At a cooperative observer's station/3.5 mi away/5,735 ft/968 ft below here

snowfall, snow depth, precip, high, low

Rank1,873of 2,650

Station report

The weather at Boulder, drawn

The nearest airport reporting now, 5.8 mi from Lazy Acres, Colorado. From its report of Oct 16, 2026, 3:35 AM local time: 3 of its 6 sheets.

The sky

Overcast at 3,200 ft; the ceiling is 3,200 ft; visibility 10 mi or more.

Section of the sky over Boulder, height above the station to scale: overcast cloud with its base at 3,200 feet, the ceiling at 3,200 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT BDUFIG. A THE SKY OVER BOULDERSECTION, 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 STATION01,0002,0003,0004,0005,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 3,200 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 3,200 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEBoulder, the skySTATION REPORT · ASOS BDUTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-BDU-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

39.2 F with a dew point of 30.2 F, 70 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,000 ft up; the lowest cloud reported is at 3,200 ft.

Chart of the air at Boulder: temperature 39.2 degrees Fahrenheit and dew point 30.2, 70 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,000 feet above the station, against the lowest cloud reported at 3,200 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT BDUFIG. B THE AIR AT BOULDERTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00020 F30 F40 F50 FSATURATES 2,000 FT ABOVE THE STATION, AT 28.3 FLOWEST CLOUD REPORTED, OVC 3,200 FTTEMPERATURE 39.2 FDEW POINT 30.2 FSPREAD 9.0 FRELATIVE HUMIDITY 70 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 POINTTITLEBoulder, the airSTATION REPORT · ASOS BDUTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-BDU-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the east southeast (110 degrees) at 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Boulder, north up: blowing from 110 degrees, the east southeast, at 3 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT BDUFIG. C THE WIND AT BOULDERPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 110°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEBoulder, the windSTATION REPORT · ASOS BDUTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-BDU-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Boulder, in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Lyons 7S (THUC2), 3.5 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 Lazy Acres

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

Near Lazy Acres

River and lake gauges