WxDecoder

KBDU/WBU METAR Boulder Municipal Airport

Boulder, ColoradoElevation 5,288 ftSmall airport
CURRENT STATUS
MVFR18 min old
Ceiling 2,900 ft, visibility 10 SM.
FLIGHT CATEGORY
MVFR
ceiling & visibility
WIND
320@3
steady
VISIBILITY
10 SM
16.1 km
CEILING
2,900 ft
lowest BKN/OVC
DENSITY ALT
5,608 ft
+320 ft vs field
CURRENT METAR

Decoded observation

Observed 0235Z (8:35 PM local) · 18 min old

KBDU is currently MVFR. Winds are from the northwest at 3 knots. Visibility is 10 statute miles. The ceiling is 2,900 feet AGL. The main issue is ceiling 2900 ft agl (mvfr).

WIND
320° at 3 kt
Steady.
VISIBILITY
10 statute miles
16.1 km, good.
CEILING & SKY
Ceiling 2,900 ft
Lowest broken or overcast layer.
TEMP / DEWPOINT
10°C / 3°C
50°F / 37°F. 7°C spread.
ALTIMETER
30.25 inHg
1024.4 hPa, above standard.
WEATHER & HAZARDS
LOW CIG
Ceiling 2900 ft AGL (MVFR).

Codes in this report: AUTO BKN OVC RMK AO2

Hover or tap any group for a plain-English explanation.

REMARKS: DECODED
AO2
automated station with a precipitation discriminator (can tell rain from snow)
SUGGESTED RISK · TRAINING USE

Suggested risk level: Moderate

›Conditions are MVFR.
›No TAF available for this airport.

A suggested risk level for training and situational awareness only, not a go/no-go authority. Verify with official sources and apply your personal minimums.

FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

Current aviation conditions show flight category MVFR, wind from 320° at 3 kt, visibility 10 SM, ceiling 2,900 ft. Forecast suggests tonight rain showers likely, low near 41F, 56% chance of precipitation. Key risks: high density altitude. Note: the NWS forecast for now reads "Chance Rain Showers" but the current METAR shows none of it; the observation and forecast differ, so trust the METAR for current conditions.

PILOT WEATHER NOTES
High density altitudeMETAR
Density altitude about 5,608 ft (field elevation 5,288 ft). Expect reduced climb performance and a longer takeoff roll.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Rain Showers Likely 41 NE 5 kt – 56%
Monday Patchy Fog then Partly Sunny 60/37 E 5 kt – 16%
Tuesday Patchy Fog then Sunny 67/38 SSW 5 kt – 0%
Wednesday Mostly Sunny 68/39 SSE 5 kt – 0%
Thursday Mostly Sunny 66/41 ESE 3 kt – 1%
Friday Partly Sunny 67/43 E 4 kt – 15%
Saturday Mostly Sunny then Slight Chance Rain Showers 63/41 E 2 kt – 15%
Sunday Partly Sunny then Chance Rain Showers 62 NNE 3 kt – 43%

Note: the NWS forecast for now reads "Chance Rain Showers" but the current METAR shows none of it; the observation and forecast differ, so trust the METAR for current conditions.

Source: National Weather Service (office BOU). Forecast issued 0253Z.

Radar

Radar data: NOAA/NWS MRMS composite reflectivity. For situational awareness only, not a substitute for an official weather briefing.

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RUNWAYS & WIND
1 runway · crosswind ranking
ON-FIELD METAR
NESW0826 320°320°3 kt320°320° 3320°
READING THE BARB · SWIPE FOR MORE →
Calm
5 kt
10 kt
15 kt
20 kt
25 kt
30 kt
35 kt
40 kt
45 kt
50 kt
65 kt
75 kt
100 kt
105 kt
Half feather = 5 kt, full = 10 kt, filled pennant = 50 kt; add them up. The staff points the direction the wind blows from.
WIND USED
320° at 3 kt
Components computed from the current on-field METAR wind.
RECOMMENDED
RWY 262 kt headwind · 2 kt crosswind
RUNWAYS BY WIND · best end
26
HEAD
2 kt
CROSS
2 kt R
BEST
08
HEAD
2 kt tail
CROSS
2 kt L
OK
Components are estimates from the current METAR wind and runway heading. Verify with the Chart Supplement and NOTAMs.
RUNWAYS

Runway detail & declared distances

2 runways · longest 4,100 ft

08G/26G
Dimensions
4,100 x 20 ft
Surface
Asphalt
RWY 08G
Traffic patternLeft
RWY 26G
Traffic patternRight
08/26
Dimensions
4,100 x 75 ft
Surface
Asphalt (excellent)
Edge lights
MED
RWY 0890°T
Landing length (LDA)3,900 ft
TORA / TODA / ASDA4,100 / 4,100 / 4,100 ft
Displaced threshold200 ft
Traffic patternLeft
RWY 26270°T
Landing length (LDA)3,900 ft
TORA / TODA / ASDA4,100 / 4,100 / 3,900 ft
VGSIPAPI (P4L)
Traffic patternRight

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

FIELD CONDITIONS

Performance & density altitude

Density altitude
5,608 ft
Pressure altitude
4,958 ft
Field elevation
5,288 ft MSL
Temperature
10°C (50°F)
Dewpoint
3°C (37°F)
Altimeter
30.25 inHg

Density altitude estimates how the aircraft performs versus standard atmosphere. Higher density altitude reduces climb performance and increases takeoff distance.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0007Z 6:07 PM
Sunrise
1323Z 7:23 AM
Loggable night
0035Z (6:35 PM local) → 1255Z (6:55 AM local)
end of evening to start of morning civil twilight
Position lights required
0007Z (6:07 PM local) → 1323Z (7:23 AM local)
sunset to sunrise (91.209)
Night passenger currency
0107Z (7:07 PM local) → 1223Z (6:23 AM local)
1 hr after sunset to 1 hr before sunrise (61.57(b))

FAA definitions, shown in Zulu with airport-local time. Verify for your operation.

AIRPORT INFORMATION

Facility & services

Boulder Municipal Airport is in Boulder, Colorado. Field elevation 5,288 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPublicly owned
UseOpen to the public
TypeSmall airport
ManagerERIC VENCES
Manager phone303-441-3108
AttendedDaily, 0800–1700
CHARTS & AIRSPACE
ICAO / IATAKBDU / WBU
SectionalCHEYENNE
Center (ARTCC)DENVER
Flight service (AFSS)DENVER
RegionColorado
CountryUnited States
Coordinates40.0391, -105.2260
Distance from city3 NM NE
SERVICES & LIGHTING
Fuel100LL · Jet A
Control towerNon-towered
Field lightingSee remarks
BeaconSunset to sunrise · White-green (lighted land airport)
Traffic pattern alt1,012 ft MSL
CTAF122.725
UNICOM122.725
FREQUENCIES

Communications

122.725
Boulder traffic
CTAF/UNICOM:
122.725
CTAF
CTAF
122.725
UNICOM
UNICOM

Not all tower/ground/approach frequencies are in our datasets. Verify with the FAA Chart Supplement.

AIRCRAFT ACTIVITY

KBDU traffic patterns

2026-06-12 to 2026-10-23, 70 days observed · data 2026-10-23

High confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
13.1
AVG OPS/DAY
26.2
Activity trend over 18 days: rising, from 14 to 38 operations per dayOperations trend (18 days)

Busiest day: Sat · Busiest month: Jun

FLEET MIX
Piston single 52%Unknown 31%Other 7%Turboprop 5%Helicopter 5%

Mostly small piston aircraft.

TOP AIRCRAFT TYPES
›C172 (Piston single) · ~87 landings/mo
›UNKN (Unknown) · ~37 landings/mo
›PA25 (Unknown) · ~23 landings/mo
›C182 (Piston single) · ~14 landings/mo
›AS50 (Helicopter) · ~7 landings/mo
LIKELY BASED AIRCRAFT
Low-confidence estimate

Aircraft likely based near this airport (estimate), mostly single-engine piston aircraft.

›C172 (Piston single)
›PA25 (Unknown)
›UNKN (Unknown)
›C182 (Piston single)
›AS21 (Other)

This is an estimate based on repeated flight patterns, not registration data. Do not rely on it to identify specific aircraft or owners.

Data limitations (4)
›ADS-B coverage is incomplete; counts are an observed lower bound, not official totals.
›Some aircraft do not transmit usable ADS-B and are not counted.
›Aircraft types and based estimates are inferred and may be wrong.
›This is not official ATC, FAA, or airport data.
NEARBY AIRPORTS

Weather reference stations

Current flight category at nearby reporting stations.

KBJC Rocky Mountain Metropolitan Airport
9 NM SE
MVFR
KFNL Northern Colorado Regional Airport
27 NM N
IFR
KDEN Denver International Airport
28 NM SE
IFR
KBKF Buckley Space Force Base
30 NM SE
MVFR
KAPA Centennial Airport
33 NM SE
MVFR
KCFO Colorado Air and Space Port
35 NM SE
IFR
AIRPORT REMARKS

Operational remarks

›100LL SELF SERVE AVBL H24.
›ACTVT PAPI RWY 26; MIRL RWY 8/26 - CTAF.
›FOR CD CTC DENVER APCH AT 303-342-1916.
›LNDG AREA UNDEFINED; GLIDER OPS ONLY; 197 FT SEPN CNTRLN TO CNTRLN.
›GLIDER OPS 60 FT PARL TO RWY.
›NOISE ABATEMENT PROC IN EFCT - AMGR OR HTTP:/WWW.BOULDERCOLORADO.GOV/AIRPORT.
›25 - 55 FT TREES OUTLINE HAYDEN LAKE 200 FT FM RWY 08G THR; HAYDEN LAKE 250 FT FM RWY 8 & 8G THR.
›SIMUL RWY OPS ON RWY 8/26 AND 8G/26G ARE PROHIBITED.
›RWY 08 10 FT TREE, DIST 277 FT, 14 FT R, APCH SLP 47:1 DSPLCD THLD.
›GLIDER ACT DLY SR-SS SE OF ARPT BTN ARPT & POWER PLANT FM 6300 - 9000 FT; RCMD AVOIDANCE & EXERCIZE EXTREME CTN WHEN TRANSITING AREA.
›3000 FT X 20 FT CHIP & SEAL W END; 1100 FT GRASS E END.
›DURG W WIND EXP SVR TURB. 300 FT SAFETY AREA OUTLINED WITH RED REFLECTORS; 130 FT DROPOFF E OF MKD AREA.
›PAJA & WATER FOWL ON & INVOF ARPT.
›TPA: RWY 08/26 TPA 1012 FT AGL.
›SIMUL APCH & DEP FM RWY 8/26 & 8G/26G NA; PWRD ACFT YIELD TO GLIDERS ON FNA OR INITIATE GO-AROUND FOR ADEQUATE SPACING.
›DEP TURN BLW 512 FT NA. 40-60 FT TREES RESULT IN 27 DEG OBST CLNC SLOPE TO DTHR. RWY 08 CALM WIND RWY.
›MIDFIELD PAT ENTRY FM S GLIDER USE ONLY.
OFFICIAL LINKS & SOURCES
↗Official METAR on AviationWeather.gov
↗Search NOTAMs (official FAA NOTAM Search)
↗Official airport website
↗Wikipedia
↗KBDU on OurAirports
FREQUENTLY ASKED
Does KBDU have a METAR?
Yes. KBDU has a current METAR observation, decoded into plain English on this page.
Does KBDU have a TAF?
When KBDU issues a TAF, its decoded forecast timeline loads live on this page; otherwise use the nearest TAF-issuing field as a planning reference.
What is the field elevation at KBDU?
KBDU sits at 5,288 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for KBDU?
No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.
This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.