Storm Station
Keystone, Colorado
54°
Mostly clear· Feels like 54°·Light breeze 6 mph W
Partly cloudy, with a low around 38. South southeast wind around 5 mph.
-UV
-Air quality
34%Humidity
20%Cloud

What is measuring near here

The 6 instruments nearest Keystone, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.6 miles away.

measured now4 instruments

2.4 mi E of SilverthorneCO158

Beside a road/3.9 mi away/9,404 ft/1,459 ft below here

temp, pavement temp, wind, visibility, precip

Rank1,343of 1,384

DillonDLLC2

At a river or reservoir gauge/4.2 mi away/9,110 ft/1,753 ft below here

temp, wind, gust, humidity, pressure

Rank710of 1,384

Red Cliff Pass (CDOT)CCU

At an airfield/15.1 mi away/12,073 ft/1,210 ft above here

temp, wind, gust, visibility, precip, pressure

Rank934of 1,384

Boulder 14 W94075

At a climate reference station/35.3 mi away/9,828 ft/1,035 ft below here

temp, humidity, wind, solar, precip

Rank-

measured daily2 instruments

Dillon 2.7 SECO-SU-63

In a volunteer observer's own ground/3.6 mi away/9,118 ft/1,745 ft below here

precip, snowfall, snow depth

Rank-

DillonDLLC2

At a cooperative observer's station/4.2 mi away/9,222 ft/1,641 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Red Cliff Pass (CDOT), drawn

The nearest airport reporting now, 15.1 mi from Keystone. From its report of Sep 27, 2026, 2:55 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 Red Cliff Pass (CDOT), 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 CCUFIG. A THE SKY OVER RED CLIFF PASS (CDOT)SECTION, 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 MORE0510TITLERed Cliff Pass (CDOT), the skySTATION REPORT · ASOS CCUTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-CCU-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

37.4 F with a dew point of 30.2 F, 75 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,600 ft up.

Chart of the air at Red Cliff Pass (CDOT): temperature 37.4 degrees Fahrenheit and dew point 30.2, 75 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,600 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CCUFIG. B THE AIR AT RED CLIFF PASS (CDOT)THE 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 1,600 FT ABOVE THE STATION, AT 28.7 FTEMPERATURE 37.4 FDEW POINT 30.2 FSPREAD 7.2 FRELATIVE HUMIDITY 75 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 POINTTITLERed Cliff Pass (CDOT), the airSTATION REPORT · ASOS CCUTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-CCU-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south (180 degrees) at 5 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Red Cliff Pass (CDOT), north up: blowing from 180 degrees, the south, at 5 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CCUFIG. C THE WIND AT RED CLIFF PASS (CDOT)PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 180°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 5 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLERed Cliff Pass (CDOT), the windSTATION REPORT · ASOS CCUTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-CCU-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Red Cliff Pass (CDOT), in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Dillon (DLLC2), 4.2 miles from here, read 26 Sep, 07:00. measured daily

Elsewhere in Colorado

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

Near Keystone

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