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Golden, Colorado

City in Jefferson County, Colorado

Air quality

The air at Golden

Index 42, good, led by fine particles. Read at 5 AM from its reporting area, Denver-Boulder (CO), 14 miles off.

42Good
  • Fine particles (PM2.5)42Good10.9 mi
  • Ozone41Good47 ppb2.3 mi
  • Coarse particles (PM10)19Good18.3 mi
  • Nitrogen dioxide25Good26.2 ppb10.9 mi
  • Sulfur dioxide0Good0.9 ppb11.6 mi
  • Carbon monoxide-0.7 ppm10.9 mi

The days ahead

Good each day through Today, led by fine particles. Yesterday measured 44, good.

Smoke, the next 44 hours

No smoke near the ground through Mon 12 AM.

SatSun

Precipitation

What has fallen at Golden

None in the last 24 hours; 0.09 in over the last 3 days, to Sat 4 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.09in

Visibility

How far you can see at Golden, the next 44 hours

Visibility stays 10 miles or more through Mon 12 AM.

SatSun

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

What is measuring near here

The 7 instruments nearest Golden, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.1 miles away.

measured now5 instruments

measured daily2 instruments

Golden 0.5 NCO-JF-291

In a volunteer observer's own ground/0.1 mi away/5,761 ft/4 ft below here

precip, snowfall, snow depth

Rank-

LakewoodLKWC2

At a cooperative observer's station/5.2 mi away/5,646 ft/119 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Broomfield/Jeffco, drawn

The nearest airport reporting now, 12.4 mi from Golden, Colorado. From its report of Oct 17, 2026, 5:15 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 Broomfield/Jeffco, 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 BJCFIG. A THE SKY OVER BROOMFIELD/JEFFCOSECTION, 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 MORE0510TITLEBroomfield/Jeffco, the skySTATION REPORT · ASOS BJCTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-BJC-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

46.4 F with a dew point of 21.2 F, 36 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 5,700 ft up.

Chart of the air at Broomfield/Jeffco: temperature 46.4 degrees Fahrenheit and dew point 21.2, 36 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 5,700 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT BJCFIG. B THE AIR AT BROOMFIELD/JEFFCOTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,0007,0008,00010 F20 F30 F40 F50 F60 FSATURATES 5,700 FT ABOVE THE STATION, AT 16.1 FTEMPERATURE 46.4 FDEW POINT 21.2 FSPREAD 25.2 FRELATIVE HUMIDITY 36 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 POINTTITLEBroomfield/Jeffco, the airSTATION REPORT · ASOS BJCTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-BJC-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Broomfield/Jeffco, 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 BJCFIG. C THE WIND AT BROOMFIELD/JEFFCOPLAN, 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 FORCE73TITLEBroomfield/Jeffco, the windSTATION REPORT · ASOS BJCTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-BJC-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Broomfield/Jeffco, 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 Golden

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

Near Golden

River and lake gauges