Storm Station
Longmont, Colorado
64°
Mostly clear· Feels like 64°·Light air 3 mph SE
Mostly sunny. High near 83, with temperatures falling to around 80 in the afternoon. South wind 1 to 7 mph. New rainfall amounts less than a tenth of an inch possible.
-UV
-Air quality
28%Humidity
34%Cloud

What is measuring near here

The 6 instruments nearest Longmont, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.5 miles away.

measured now4 instruments

Longmont/VbrandLMO

At an airfield/3.1 mi away/5,056 ft/61 ft above here

temp, wind, gust, visibility, precip, pressure

Rank929of 1,384

Del Camino (43)CO052

Beside a road/6.6 mi away/4,788 ft/207 ft below here

temp, pavement temp, wind, visibility, precip

Rank1,298of 1,384

Saint Vrain Creek 1 SE LyonsLNSC2

At a river or reservoir gauge/8.9 mi away/5,417 ft/422 ft above here

temp, wind, gust, humidity, pressure

Rank264of 1,384

Boulder 14 W94075

At a climate reference station/25.0 mi away/9,828 ft/4,833 ft above here

temp, humidity, wind, solar, precip

Rank-

measured daily2 instruments

Longmont 0.8 ENECO-BO-612

In a volunteer observer's own ground/0.5 mi away/5,011 ft/16 ft above here

precip, snowfall, snow depth

Rank-

Longmont ProfilerLONC2

At a cooperative observer's station/1.6 mi away/4,989 ft/6 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Longmont/Vbrand, drawn

The nearest airport reporting now, 3.1 mi from Longmont. From its report of Sep 27, 2026, 6:35 AM local time: 3 of its 6 sheets.

The sky

Broken at 11,000 ft; the ceiling is 11,000 ft; visibility 10 mi or more.

Section of the sky over Longmont/Vbrand, height above the station to scale: broken cloud with its base at 11,000 feet, the ceiling at 11,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT LMOFIG. A THE SKY OVER LONGMONT/VBRANDSECTION, 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 STATION02,5005,0007,50010,00012,50015,00017,500ETAGESLOWMIDDLEHIGHTHE STATIONTHE CEILOMETER READS TO 12,000 FTBKN 11,000 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 11,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLELongmont/Vbrand, the skySTATION REPORT · ASOS LMOTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-LMO-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-013, FB-SKY-014

The air

54.0 F with a dew point of 41.0 F, 61 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 3,000 ft up; the lowest cloud reported is at 11,000 ft.

Chart of the air at Longmont/Vbrand: temperature 54.0 degrees Fahrenheit and dew point 41.0, 61 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 3,000 feet above the station, against the lowest cloud reported at 11,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT LMOFIG. B THE AIR AT LONGMONT/VBRANDTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION02,0004,0006,0008,00010,00030 F40 F50 F60 FSATURATES 3,000 FT ABOVE THE STATION, AT 38.2 FABOVE THIS SHEET: LOWEST CLOUD REPORTED, BKN 11,000 FTTEMPERATURE 54.0 FDEW POINT 41.0 FSPREAD 13.0 FRELATIVE HUMIDITY 61 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 POINTTITLELongmont/Vbrand, the airSTATION REPORT · ASOS LMOTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-LMO-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Longmont/Vbrand, 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 LMOFIG. C THE WIND AT LONGMONT/VBRANDPLAN, 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 FORCE73TITLELongmont/Vbrand, the windSTATION REPORT · ASOS LMOTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-LMO-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Longmont Profiler (LONC2), 1.6 miles from here, read 26 Sep, 07:50. measured daily

Elsewhere in Colorado

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

Near Longmont

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