WxDecoder

KBOS/BOS METAR & TAF Boston Logan International Airport

Boston, MassachusettsElevation 20 ftLarge airport
CURRENT STATUS
VFR30 min old
No ceiling, visibility 10 SM.
FLIGHT CATEGORY
VFR
ceiling & visibility
WIND
290@3
steady
VISIBILITY
10 SM
16.1 km
CEILING
None
no BKN/OVC layer
DENSITY ALT
-1,654 ft
-1,674 ft vs field
CURRENT METAR

Decoded observation

Observed 0754Z (3:54 AM local) · 30 min old

KBOS is currently VFR. Winds are from the west at 3 knots. Visibility is 10 statute miles. There is no ceiling.

WIND
290° at 3 kt
Steady.
VISIBILITY
10 statute miles
16.1 km, good.
CEILING & SKY
CLR
FEW and SCT layers are not ceilings.
TEMP / DEWPOINT
6°C / 3°C
43°F / 37°F. 3°C spread.
ALTIMETER
30.53 inHg
1033.9 hPa, above standard.
WEATHER & HAZARDS
No significant hazards
No precipitation or obscuration reported.

Codes in this report: CLR 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)
SLP337
sea-level pressure 1033.7 hPa
T00610033
precise temperature 6.1°C, dew point 3.3°C
TERMINAL AERODROME FORECAST

TAF timeline

Issued 0522Z (1:22 AM local) · valid to 1200Z (8:00 AM local)

KBOS forecast starts VFR at 06Z. Conditions are roughly steady over the period.

VFR
VFR
VFR
VFR
VFR
0600Z2:00 AM1200Z8:00 AM1800Z2:00 PM0000Z8:00 PM0600Z2:00 AM1200Z8:00 AM

Codes in this report: P6SM SKC

Tap any group to decode it.

FAA: no delays reported at BOS.

Source: FAA System Operations (ASWS). Operational status only; verify with official FAA sources and NOTAMs.

SUGGESTED RISK · TRAINING USE

Suggested risk level: Low

›No significant weather concerns in the current report.

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 VFR, wind from 290° at 3 kt, visibility 10 SM, ceiling none. Forecast suggests sunday sunny, high near 62F, low near 44F, 0% chance of precipitation. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing.

DayConditionsTemp FWindGustsPrecipPilot note
Sunday Sunny 62/44 SW 5 kt – 0%
Monday Sunny 66/46 W 9 kt – 0%
Tuesday Sunny 52/37 N 11 kt – 0%
Wednesday Sunny 53/43 NE 7 kt – 0%
Thursday Sunny 64/52 SW 15 kt – 3%
Friday Sunny 66/49 W 9 kt – 1%
Saturday Mostly Sunny 62 NE 8 kt – 0%

Source: National Weather Service (office BOX). Forecast issued 0554Z.

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
6 runways · crosswind ranking
ON-FIELD METAR
NESW092715L33R143215R33L04L22R04R22L 290°290°3 kt290°290° 3290°
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
290° at 3 kt
Components computed from the current on-field METAR wind.
RECOMMENDED
RWY 323 kt headwind · 1 kt crosswind
RUNWAYS BY WIND · best end
32
HEAD
3 kt
CROSS
1 kt L
BEST
33R
HEAD
3 kt
CROSS
1 kt L
OK
33L
HEAD
3 kt
CROSS
1 kt L
OK
27
HEAD
3 kt
CROSS
2 kt R
OK
04L
HEAD
0 kt
CROSS
3 kt L
OK
22R
HEAD
0 kt
CROSS
3 kt R
OK
04R
HEAD
0 kt
CROSS
3 kt L
OK
22L
HEAD
0 kt
CROSS
3 kt R
OK
09
HEAD
3 kt tail
CROSS
2 kt L
OK
15L
HEAD
3 kt tail
CROSS
1 kt R
OK
15R
HEAD
3 kt tail
CROSS
1 kt R
OK
14
HEAD
3 kt tail
CROSS
1 kt R
OK
Components are estimates from the current METAR wind and runway heading. Verify with the Chart Supplement and NOTAMs.
RUNWAYS

Runway detail & declared distances

6 runways · longest 10,083 ft

09/27
Dimensions
7,001 x 150 ft
Surface
Asphalt (good)
Edge lights
HIGH
RWY 0977°T
Landing length (LDA)7,001 ft
TORA / TODA / ASDA7,001 / 7,001 / 7,001 ft
Traffic patternLeft
RWY 27257°T
Landing length (LDA)7,001 ft
TORA / TODA / ASDA7,001 / 7,001 / 7,001 ft
ILSILS/DME
REILYes
VGSIPAPI (P4L)
Traffic patternLeft
15L/33R
Dimensions
2,557 x 100 ft
Surface
Asphalt (good)
Edge lights
MED
RWY 15L135°T
Landing length (LDA)2,557 ft
TORA / TODA / ASDA2,557 / 2,557 / 2,557 ft
Traffic patternLeft
RWY 33R315°T
Landing length (LDA)2,557 ft
TORA / TODA / ASDA2,557 / 2,557 / 2,557 ft
VGSIPAPI (P4R)
Traffic patternLeft
14/32
Dimensions
5,000 x 100 ft
Surface
Asphalt (good)
Edge lights
HIGH
RWY 14125°T
TORA / TODA / ASDA5,000 / 5,000 / 5,000 ft
RWY 32305°T
Landing length (LDA)5,000 ft
REILYes
VGSIPAPI (P4L)
15R/33L
Dimensions
10,083 x 150 ft
Surface
Asphalt (excellent)
Edge lights
HIGH
RWY 15R135°T
Landing length (LDA)9,202 ft
TORA / TODA / ASDA10,083 / 10,083 / 10,083 ft
Displaced threshold882 ft
ILSILS/DME
Approach lightsMALSR
VGSIPAPI (P4L)
Traffic patternLeft
RWY 33L315°T
Landing length (LDA)10,083 ft
TORA / TODA / ASDA10,083 / 10,083 / 10,083 ft
ILSILS/DME
Approach lightsALSF2
VGSIPAPI (P4R)
Traffic patternLeft
04L/22R
Dimensions
7,864 x 150 ft
Surface
Asphalt (good)
Edge lights
HIGH
RWY 04L20°T
Landing length (LDA)7,864 ft
TORA / TODA / ASDA7,864 / 7,864 / 7,864 ft
REILYes
VGSIPAPI (P4L)
Traffic patternLeft
RWY 22R200°T
Landing length (LDA)7,046 ft
TORA / TODA / ASDA7,864 / 7,864 / 7,864 ft
Displaced threshold819 ft
VGSIPAPI (P4L)
Traffic patternLeft
04R/22L
Dimensions
10,006 x 150 ft
Surface
Asphalt (good)
Edge lights
HIGH
RWY 04R20°T
Landing length (LDA)8,851 ft
TORA / TODA / ASDA10,006 / 10,006 / 10,006 ft
Displaced threshold1,155 ft
ILSILS/DME
Approach lightsALSF2
VGSIPAPI (P4L)
Traffic patternLeft
RWY 22L200°T
Landing length (LDA)8,806 ft
TORA / TODA / ASDA10,006 / 10,006 / 10,006 ft
Displaced threshold1,199 ft
ILSILS/DME
Approach lightsMALSF
VGSIPAPI (P4R)
Traffic patternLeft

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
-1,654 ft
Pressure altitude
-590 ft
Field elevation
20 ft MSL
Temperature
6°C (43°F)
Dewpoint
3°C (37°F)
Altimeter
30.53 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
2148Z 5:48 PM
Sunrise
1108Z 7:08 AM
Loggable night
2217Z (6:17 PM local) → 1039Z (6:39 AM local)
end of evening to start of morning civil twilight
Position lights required
2148Z (5:48 PM local) → 1108Z (7:08 AM local)
sunset to sunrise (91.209)
Night passenger currency
2248Z (6:48 PM local) → 1008Z (6:08 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

Boston Logan International Airport is in Boston, Massachusetts. Field elevation 20 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPublicly owned
UseOpen to the public
TypeLarge airport
Airline serviceYes
ManagerEDWARD FRENI
Manager phone617-567-5400
AttendedContinuous (24 hours)
CHARTS & AIRSPACE
ICAO / IATAKBOS / BOS
SectionalNEW YORK
Center (ARTCC)BOSTON
Flight service (AFSS)BRIDGEPORT
RegionMassachusetts
CountryUnited States
Coordinates42.3620, -71.0079
Distance from city1 NM E
SERVICES & LIGHTING
Fuel100LL · Jet A
Control towerTowered
BeaconSunset to sunrise · White-green (lighted land airport)
UNICOM122.950
FREQUENCIES

Communications

118.25
BOSTON APP NORTH
APP
120.6
BOSTON APP WEST
APP
127.2
BOSTON APP SOUTH
APP
135
ATIS
ATIS
121.65
CLNC DEL
CLD
133
BOSTON DEP
DEP
121.75
BOSTON GROUND
GND
121.9
GND
GND
134.05
GATE
GTE
122.4
BRIDGEPORT RDO
RDO
128.8
BOSTON TWR WEST
TWR
132.225
BOSTON TWR EAST
TWR
122.95
UNICOM
UNIC
122.950
UNICOM
UNICOM

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

AIRCRAFT ACTIVITY

KBOS 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
621.7
AVG OPS/DAY
660
Activity trend over 18 days: rising, from 725 to 739 operations per dayOperations trend (18 days)

Busiest day: Thu · Busiest month: Jul

FLEET MIX
Airliner 82%Unknown 14%Jet 2%Turboprop 2%

Mostly airliner-class aircraft.

TOP AIRCRAFT TYPES
›E75L (Airliner) · ~2314 landings/mo
›BCS3 (Airliner) · ~1642 landings/mo
›A21N (Airliner) · ~1366 landings/mo
›A321 (Airliner) · ~1206 landings/mo
›B738 (Airliner) · ~1072 landings/mo
LIKELY BASED AIRCRAFT
Low-confidence estimate

Aircraft likely based near this airport (estimate), mostly aircraft of unknown type.

›C402 (Unknown)
›P212 (Unknown)
›E75L (Airliner)
›PC12 (Turboprop)
›A21N (Airliner)

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.

KOWD Norwood Memorial Airport
13 NM SW
VFR
KBVY Beverly Regional Airport
14 NM N
VFR
KBED Laurence G Hanscom Field
14 NM NW
VFR
KLWM Lawrence Municipal Airport
22 NM N
VFR
KPYM Plymouth Municipal Airport
30 NM SE
VFR
KASH Nashua Airport / Boire Field
34 NM NW
VFR
AIRPORT REMARKS

Operational remarks

›TERMINAL E; NORTH & SOUTH CARGO ARRIVALS CTC MASSPORT GATE CONTROL ON FREQ 131.1 BEFORE ENTERING/DEPARTING RAMP AREA.
›NO RON PARKING FOR NON-TENANT CHARTER AIRCRAFT WITHOUT PRIOR MASSPORT PERMISSION.
›ENGINEERED MATERIALS ARRESTING SYSTEM (EMAS) 158 FT IN LENGTH BY 170 FT IN WIDTH LCTD AT DER 15R.
›ENGINEERING MATERIALS ARRESTING SYSTEM (EMAS) 190 FT IN LENGTH BY 170 FT IN WIDTH LCTD AT DER 04L.
›PRVDD THE DESIGNATION OF A MOVEMENT AREA ASSOCIATED WITH THE RELCTN IS COORDINATED WITH & DESIGNATED BY BOSTON ATCT; APPROPRIATE HOLD LINES ESTABLISHED & MARKED FOR SERVICE VEHICLE MOVEMENT & TAXILANES; RELCTN MARKED IN ACCORDANCE WITH FAA ADVISORY CIRCULAR/5930-2.
›APCH RATIO 33:1 FROM DSPLCD THR; 50:1 TO THR WHEN CHANNEL IS CLEAR.
›APCH RATIO 38:1 FROM DSPLCD THR.
›APCH RATIO 50:1 FROM DSPLCD THR.
›APPROACHES TO RWY 14 NOT AUTHORIZED.
›APCH RATIO 17:1 FROM DSPLCD THR; 43:1 WHEN CHANNEL IS CLEAR.
›UNUSBL BYD 7 DEGS LEFT OF CNTRLN.
›BIRDS ON & INVOF ARPT.
›NMRS CRANES ON AND INVOF ARPT.
›RWY 14/32 UNIDIRECTIONAL; NO LDGS RWY 14; NO TKOFS RWY 32.
›PILOTS SHOULD COMPLETE ALL CALCULATIONS PRIOR TO PUSHBACK FROM GATE.
›RWY STATUS LGTS IN OPN.
›AVBL FOR DEPARTURE ONLY.
›FOR NOISE ABATEMENT, RWY 15R IS PREFERRED FOR TKOF, RWY 33L IS PREFERRED FOR LDG. FOR MORE INFO ON NOISE ABATEMENT PROCS CALL 617-561-3333.
›PCR VALUE: 800/F/C/X/T
›THE USE OF THE RNAV SIDS AT BOSTON LOGAN ARE CRITICAL TO RDCG NOISE AND ACHIEVING OUR FLY QUIET GOALS. MASSPORT AND THE FAA ENCOURAGE PILOTS TO USE PUBLD RNAV FLIGHT PROCS AT BOSTON LOGAN ARPT WHENEVER POSS. ALL ACFT THAT HAVE REQD ALTS ABV 10,000 FT SHOULD BE FILING RNAV SIDS WITH FAA ATC. CTC MASSPORT'S NOISE ABATEMENT OFC AT 617-561-3333 WITH ANY QNS.
›PCR VALUE: 850/F/C/X/T
›PCR VALUE: 780/F/C/X/T
›PCR VALUE: 810/F/C/X/T
›PCR VALUE: 830/F/C/X/T
›PCR VALUE: 800/F/C/X/T

About Boston Logan International Airport

OFFICIAL LINKS & SOURCES
↗Official METAR on AviationWeather.gov
↗Search NOTAMs (official FAA NOTAM Search)
↗Official airport website
↗Wikipedia
↗KBOS on OurAirports
FREQUENTLY ASKED
Does KBOS have a METAR?
Yes. KBOS has a current METAR observation, decoded into plain English on this page.
Does KBOS have a TAF?
Yes, a TAF is issued for KBOS; the decoded forecast timeline is shown above.
What is the field elevation at KBOS?
KBOS sits at 20 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for KBOS?
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.