Logan International Airport

KBOS / BOS

Boston, US

Last Updated
May 14, 12:54Z

Current Weather

Display Units
Fresh 28 min ago
12:54Z

☀️ Day
VFR
Flight Rules
13°C
Temperature
Dewpoint: 11°C
6 kt
100°
10 SM
Visibility
9,000 ft
Ceiling
Above Ground Level
1009 hPa
QNH
Altimeter Setting

Raw METAR

METAR KBOS 141254Z 10006KT 10SM FEW040 BKN090 OVC130 13/11 A2981 RMK AO2 SLP092 T01330106

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 20 ft
FEW 4,000 ft AGL
BKN 9,000 ft AGL
OVC 13,000 ft AGL
🌤️
FEW
Few (1/8-2/8 sky coverage)
4,000 ft
AGL (Above Ground)
4,020 ft AMSL
☁️
BKN
Broken (5/8-7/8 sky coverage)
9,000 ft
AGL (Above Ground)
9,020 ft AMSL
☁️
OVC
Overcast (8/8 sky coverage)
13,000 ft
AGL (Above Ground)
13,020 ft AMSL

Weather Briefing

VFR

Logan International Airport is currently reporting visual flight rules (VFR) conditions with overcast skies at 13,000 feet and 10 SM visibility.

Wind Analysis

Winds are from the east (100°) at 6 knots. Runway 09/27 is favored with a 6-knot headwind and 1-knot crosswind component.

Visibility & Ceiling

Visibility is 10 SM. The ceiling is 9000 feet AGL (broken), well above standard VFR minimums.

Temperature & Moisture

Temperature is 13°C (55°F) with a dewpoint of 11°C. The temperature-dewpoint spread is very narrow, indicating saturated or near-saturated air. Fog formation or low cloud development is likely.

Forecast Outlook

The TAF forecast covers the next 30 hours. The forecast shows a transition between VFR and IFR conditions. Pilots should monitor the forecast closely and have an alternate airport plan. Expected weather includes: Light Showers Rain, Mist, Heavy Showers Rain, Mist.

Pilot Recommendations

Conditions are favorable for visual flight. The narrow temperature-dewpoint spread creates risk of fog formation, particularly during evening and early morning hours. The forecast indicates conditions may deteriorate. Ensure you have fuel reserves and a viable alternate airport.

This briefing is generated from real-time METAR and TAF data. Always verify with official sources before flight.

QNH
1009 hPa
Sea Level Pressure
For altitude above MSL
QFE
1008 hPa
Field Pressure
Height above aerodrome (20 ft)
Pressure Alt
148 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: -87 ft
ISA Deviation: -2.0°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF KBOS 141120Z 1412/1518 14008KT P6SM SCT035 OVC100 FM141600 13010G19KT P6SM BKN025 OVC035 FM141700 10011G20KT 6SM -SHRA BR OVC015 FM142000 09010G18KT 2SM +SHRA BR OVC008 FM150300 06006KT 5SM -SHRA BR OVC004 FM150800 04007KT P6SM VCSH OVC008
Upcoming Changes (Next 12 Hours)
13:21Z BASE
+0h
VFR 140° 8 kt
Visibility: >6SM
Ceiling: 10,000 ft
16:00Z FM141600
+3h
MVFR 130° 10 kt
Visibility: >6SM
Ceiling: 2,500 ft
17:00Z FM141700
+4h
MVFR 100° 11 kt
Visibility: 6SM
Ceiling: 1,500 ft
Light Showers Rain, Mist
20:00Z FM142000
+7h
IFR 90° 10 kt
Visibility: 2SM
Ceiling: 800 ft
Heavy Showers Rain, Mist

24-Hour Weather Evolution

Loading weather data...
Data Sources
  • • Current conditions from METAR observations
  • • Historical data from past 24 hours
  • • No forecast or predicted data included
  • • Data updated with each new METAR report
Chart Features
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Note: Future values beyond current TAF validity are estimates based on climatological data and trends. Always verify with current forecasts before flight operations.

Airport Runway Layout

N
BOS
04L
22R
04R
22L
09 ✈️
27
14
32
15L
33R
15R
33L

Runway Information

Runway Length Width Surface Heading Wind Component
04L/22R 7,861 ft 150 ft ASP 20°
1.0 kt 5.9 kt
80° angle
04R/22L 10,005 ft 150 ft ASP 20°
1.0 kt 5.9 kt
80° angle
✈️ 09/27
Active: 09
7,000 ft 150 ft ASP 77°
5.9 kt 1.0 kt
10° angle
14/32 5,000 ft 100 ft ASPH-G 125°
5.4 kt 2.5 kt
25° angle
15L/33R 2,557 ft 100 ft ASP 135°
4.9 kt 3.4 kt
35° angle
15R/33L 10,083 ft 150 ft ASP 135°
4.9 kt 3.4 kt
35° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KBOS

6,633 observations | Sep 2025 - May 2026

Flight Rules Distribution

VFR
72.5%
MVFR
14.9%
IFR
8.6%
LIFR
4%

Logan International Airport typically experiences VFR conditions 72.5% of the time, though instrument-rated pilots will find IFR weather present approximately 12.6% of observations. Prevailing winds are from the W averaging 10.2 knots, with gusts recorded up to 34 knots. Temperature extremes range from -16°C to 28°C, reflecting significant seasonal variation. The best months for VFR flying are November, May, December.

Wind Analysis

Prevailing Direction: W (270°)
Average Speed: 10.2 kt
Maximum Recorded: 34 kt
Calm Winds: 2.9%
Direction Distribution:
E
9%
N
10.7%
S
12.2%
W
20.4%
NE
7.1%
NW
16.5%
SE
5.2%
SW
15.9%

Temperature Range

Average: 5.7°C
Range: -16°C to 28°C
-16°C 28°C

Visibility

Average: 9.1 SM
Below 3 SM: 3.4%
Fog Frequency: 1.6%

Best Months for VFR

November May December

Runway Wind Analysis

Runway 09/27
Favorable wind: 100%
Avg crosswind: 6 kt
Runway 14/32
Favorable wind: 100%
Avg crosswind: 6.7 kt
Runway 04L/22R
Favorable wind: 100%
Avg crosswind: 6.3 kt
Runway 04R/22L
Favorable wind: 100%
Avg crosswind: 6.3 kt
Runway 15L/33R
Favorable wind: 100%
Avg crosswind: 6.9 kt
Runway 15R/33L
Favorable wind: 100%
Avg crosswind: 6.9 kt

Statistics computed from 6,633 METAR observations (Sep 2025 - May 2026). Data sourced from official aviation weather services. Updated daily.

Logan International Airport - Airport Information

Airport Details

ICAO Code: KBOS
IATA Code: BOS
Type: large airport
Status: active
Elevation: 20 ft MSL

Location

City: Boston
Country: US
Latitude: 42.361970°
Longitude: -71.007900°
Time Zone: Etc/GMT+5

Runway Information

Runway 04L/22R
Length: 7,861 ft
Width: 150 ft
Surface: ASP
ILS: No
Runway 04R/22L
Length: 10,005 ft
Width: 150 ft
Surface: ASP
ILS: No
Runway 09/27
Length: 7,000 ft
Width: 150 ft
Surface: ASP
ILS: No
Runway 14/32
Length: 5,000 ft
Width: 100 ft
Surface: ASPH-G
ILS: No
Runway 15L/33R
Length: 2,557 ft
Width: 100 ft
Surface: ASP
ILS: No
Runway 15R/33L
Length: 10,083 ft
Width: 150 ft
Surface: ASP
ILS: No

About Logan International Airport

Overview

Logan International Airport serves as the primary commercial airport for the Boston metropolitan area, located in eastern Massachusetts. Situated at a low elevation of 20 feet MSL, the airport is a critical transportation hub with six runways supporting substantial air traffic. Its strategic coastal location makes it a key gateway for both regional and international flights.

Flying Conditions

The airport's coastal location subjects pilots to variable maritime weather conditions, with potential rapid changes in visibility and wind patterns. Multiple runways (ranging from 2,557 to 10,083 feet) provide operational flexibility across different wind conditions and aircraft types. Proximity to the Atlantic Ocean can introduce marine layer fog and wind shear challenges, particularly during seasonal transitions.

Notable Features

Logan's runway configuration includes six paved runways with lengths accommodating everything from regional jets to wide-body aircraft. The longest runway (15R/33L) extends 10,083 feet, offering substantial landing and takeoff capabilities. The airport's low elevation and complex urban surrounding terrain require precise navigation and awareness of local geographical constraints.

Approach Considerations

Runway selection typically depends on prevailing wind directions, with parallel runway pairs 04L/22R and 04R/22L offering the longest approach surfaces. Pilots should anticipate potential wind variability due to the coastal environment and urban heat island effects. The diverse runway lengths provide multiple options for different aircraft performance characteristics and operational requirements.

Data Sources & Accuracy: Airport information sourced from OurAirports.com, a collaborative database of worldwide airport data. Weather data from official aviation weather services including NOAA Aviation Weather Center and international METAR/TAF providers. Information is updated regularly but pilots should always verify current conditions and NOTAMs through official channels before flight operations.

Official Data Sources

Weather NOAA Aviation Weather Center • International METAR/TAF Network
Airports OurAirports.com • Public domain airport database
NOTAMs FAA NOTAM System • ICAO NOTAM Distribution
Last updated: Jan 1, 1970 12:00 AM UTC

Disclaimer: Data is provided for informational purposes only. Pilots must verify all information through official sources before flight operations. Weather conditions change rapidly; always obtain a current briefing from approved weather services.