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Hidden Lake, Colorado

Community in Boulder County, Colorado

Air quality

The air at Hidden Lake

Index 27, good, led by ozone. Read at 10 PM from its reporting area, Fort Collins (CO), 36 miles off.

27Good
  • Ozone27Good-

The days ahead

Good each day through Fri Oct 16, led by fine particles. Yesterday measured 37, good.

Smoke, the next 45 hours

No smoke near the ground through Sat 6 PM.

FriSat

Precipitation

What has fallen at Hidden Lake

None in the last 24 hours; 1.00 in over the last 3 days, to Thu 9 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
1.00in

Visibility

How far you can see at Hidden Lake, the next 45 hours

Mist or haze: visibility falls to 3 miles Fri 2 AM.

FriSat

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

What is measuring near here

The 7 instruments nearest Hidden Lake, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.8 miles away.

measured now5 instruments

BoulderBDU

At an airfield/14.1 mi away/5,289 ft/3,668 ft below here

temp, wind, gust, visibility, precip, pressure

Rank1,442of 2,650

measured daily2 instruments

Ward 4.6 NECO-BO-202

In a volunteer observer's own ground/2.1 mi away/8,560 ft/397 ft below here

precip, snowfall, snow depth

Rank2,460of 2,650

Co Boulder 14 WWRBC2

At a cooperative observer's station/5.9 mi away/9,839 ft/882 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Boulder, drawn

The nearest airport reporting now, 14.1 mi from Hidden Lake, Colorado. From its report of Oct 15, 2026, 9:55 PM 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 Boulder, 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 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 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 MORE0510TITLEBoulder, the skySTATION REPORT · ASOS BDUTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-BDU-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

42.8 F with a dew point of 33.8 F, 70 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,100 ft up.

Chart of the air at Boulder: temperature 42.8 degrees Fahrenheit and dew point 33.8, 70 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,100 feet above the station; 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 STATION01,0002,0003,00020 F30 F40 F50 FSATURATES 2,100 FT ABOVE THE STATION, AT 31.8 FTEMPERATURE 42.8 FDEW POINT 33.8 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 south (190 degrees) at 3 mph: force 1, a light air on the Beaufort scale. The strongest gust today was 30 mph.

Plan of the wind at Boulder, north up: blowing from 190 degrees, the south, 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 190°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

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Snow on the ground

Elsewhere in Colorado

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

Near Hidden Lake

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

Near Hidden Lake

River and lake gauges