Logan International Airport

KBOS / BOS

Boston, US

Current TAF Forecast

Raw TAF:
TAF KBOS 031727Z 0318/0424 21011G18KT P6SM BKN090 FM040100 19011KT 6SM -RA BR BKN025 TEMPO 0401/0404 4SM -RA BR BKN015 FM040500 27014G25KT P6SM BKN150 FM041200 29017G33KT P6SM SKC

Detailed TAF Table

Parameter
Mon
19:00Z
+-1h
Mon
20:00Z
+0h
Mon
21:00Z
+1h
Mon
22:00Z
+2h
Mon
23:00Z
+3h
Tue
00:00Z
+4h
Tue
01:00Z
+5h
Tue
02:00Z
+6h
Tue
03:00Z
+7h
Tue
04:00Z
+8h
Tue
05:00Z
+9h
Tue
06:00Z
+10h
Tue
07:00Z
+11h
Tue
08:00Z
+12h
Tue
09:00Z
+13h
Tue
10:00Z
+14h
Tue
11:00Z
+15h
Tue
12:00Z
+16h
Tue
13:00Z
+17h
Tue
14:00Z
+18h
Tue
15:00Z
+19h
Tue
16:00Z
+20h
Tue
17:00Z
+21h
Tue
18:00Z
+22h
Tue
19:00Z
+23h
Tue
20:00Z
+24h
Tue
21:00Z
+25h
Tue
22:00Z
+26h
Wind Dir
210°
SW
210°
SW
210°
SW
210°
SW
210°
SW
210°
SW
210°
SW
210°
SW
210°
SW
190°
S
270°
W
270°
W
270°
W
270°
W
270°
W
270°
W
210°
SW
290°
W
290°
W
290°
W
290°
W
290°
W
290°
W
210°
SW
210°
SW
210°
SW
210°
SW
210°
SW
Wind Speed
11kt
G18kt
11kt
G18kt
11kt
G18kt
11kt
G18kt
11kt
G18kt
11kt
G18kt
11kt
G18kt
11kt
G18kt
11kt
G18kt
11kt
G18kt
14kt
G25kt
14kt
G25kt
14kt
G25kt
14kt
G25kt
14kt
G25kt
14kt
G25kt
11kt
G18kt
17kt
G33kt
17kt
G33kt
17kt
G33kt
17kt
G33kt
17kt
G33kt
17kt
G33kt
11kt
G18kt
11kt
G18kt
11kt
G18kt
11kt
G18kt
11kt
G18kt
Visibility
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
4SM
4SM
4SM
6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
Light Rain, Mist
-RA BR
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
BKN090
BKN090
BKN090
BKN090
BKN090
BKN090
BKN015
BKN015
BKN015
BKN025
BKN150
BKN150
BKN150
BKN150
BKN150
BKN150
BKN090
CLR
CLR
CLR
CLR
CLR
CLR
BKN090
BKN090
BKN090
BKN090
BKN090
Ceiling
9000ft
AGL
9000ft
AGL
9000ft
AGL
9000ft
AGL
9000ft
AGL
9000ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
2500ft
AGL
15000ft
AGL
15000ft
AGL
15000ft
AGL
15000ft
AGL
15000ft
AGL
15000ft
AGL
9000ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
9000ft
AGL
9000ft
AGL
9000ft
AGL
9000ft
AGL
9000ft
AGL
Flight Rules VFR VFR VFR VFR VFR VFR MVFR MVFR MVFR MVFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
🌙
Night
🌇 17:06
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:54
🌙
Night
🌅 06:54
🌙
Night
🌅 06:54
☀️
Day
🌅 06:54
☀️
Day
🌅 06:54
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 17:05
☀️
Day
🌇 17:05
☀️
Day
🌇 17:05
🌙
Night
🌇 17:05
🌙
Night
🌇 17:05
🌙
Night
🌙
Night
🌙
Night
Flight Rules
VFR: Visual Flight Rules
MVFR: Marginal VFR
IFR: Instrument Flight Rules
LIFR: Low IFR
Ceiling Colors
Red: < 500ft
Amber: 500-1000ft
Blue: 1000-3000ft
Green: > 3000ft
⛈️ TCU: Towering Cumulus
🌩️ CB: Cumulonimbus
+Nh: Hours from now%: Probability of occurrenceAGL: Above Ground Level

Forecast Periods

BASE
VFR
Wind
210° at 11 kt
Gusts: 18 kt
Visibility
>6SM
Clouds
BKN090
📖 Plain English Explanation:

This is the base forecast condition. Winds from the South-Southwest (210°) at 11kt. Gusts up to 18kt are expected. Visibility will be excellent at more than 6SM. Broken clouds at 9000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM040100 2025-11-04 01:00:00 - 2025-11-04 07:00:00
MVFR
Wind
190° at 11 kt
Visibility
6SM
Weather
Light Rain, Mist
Clouds
BKN025
📖 Plain English Explanation:

Winds from the South (190°) at 11kt. Visibility will be excellent at 6SM. Weather conditions: Light Rain, Mist. Broken clouds at 2500 feet. Marginal VFR conditions - some restrictions for visual flying.

TEMPO 2025-11-04 01:00:00 - 2025-11-04 04:00:00
MVFR
Visibility
4SM
Weather
Light Rain, Mist
Clouds
BKN015
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be good at 4SM. Weather conditions: Light Rain, Mist. Broken clouds at 1500 feet. Marginal VFR conditions - some restrictions for visual flying.

FM040500 2025-11-04 05:00:00 - 2025-11-04 11:00:00
VFR
Wind
270° at 14 kt
Gusts: 25 kt
Visibility
>6SM
Clouds
BKN150
📖 Plain English Explanation:

Winds from the West (270°) at 14kt. Gusts up to 25kt are expected. Visibility will be excellent at more than 6SM. Broken clouds at 15000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM041200 2025-11-04 12:00:00 - 2025-11-04 18:00:00
VFR
Wind
290° at 17 kt
Gusts: 33 kt
Visibility
>6SM
Clouds
CLR
📖 Plain English Explanation:

Winds from the West-Northwest (290°) at 17kt. Gusts up to 33kt are expected. Visibility will be excellent at more than 6SM. Skies will be clear. Conditions will be suitable for Visual Flight Rules (VFR) operations.

📚 Understanding TAF Forecasts

Terminal Aerodrome Forecast (TAF) provides detailed weather forecasts specifically for aviation operations. Our system translates complex meteorological codes into plain English to help pilots of all experience levels understand forecasted conditions.

What TAF Includes:

  • • Wind direction, speed, and gusts
  • • Visibility in statute miles or kilometers
  • • Weather phenomena (rain, snow, fog, thunderstorms)
  • • Cloud coverage types and altitudes
  • • Forecast changes with timing
  • • Flight rules categories (VFR/IFR)

Change Indicators Explained:

  • BASE - Main forecast conditions
  • FM - Permanent change from specific time
  • BECMG - Gradual change over 2-4 hours
  • TEMPO - Temporary changes (less than 1 hour)
  • PROB30/40 - 30% or 40% probability

🛩️ Flight Rules Categories

VFR

Visual Flight Rules

  • • Ceiling ≥ 3000 ft
  • • Visibility ≥ 5 miles
  • • Good for visual flying

MVFR

Marginal VFR

  • • Ceiling 1000-3000 ft
  • • Visibility 3-5 miles
  • • Caution for VFR

IFR

Instrument Flight Rules

  • • Ceiling 500-1000 ft
  • • Visibility 1-3 miles
  • • Instruments required

LIFR

Low IFR

  • • Ceiling < 500 ft
  • • Visibility < 1 mile
  • • Challenging conditions

💡 TAF Reading Tips

For Student Pilots:

  • • Focus on the plain English explanations above
  • • Pay attention to flight rules categories
  • • Look for wind direction relative to runway headings
  • • Check for temporary conditions (TEMPO)

For Experienced Pilots:

  • • Cross-reference with raw TAF for precise timing
  • • Consider probability forecasts for alternate planning
  • • Monitor BECMG periods for gradual changes
  • • Always check current METAR vs TAF forecast

Important: TAF forecasts should always be supplemented with current METAR observations, PIREPs, and other weather information for complete situational awareness. Weather can change rapidly, and forecasts have inherent limitations.