Airports/Massachusetts/Boston Logan International Airport
Coming up. Rain is likely this morning, from about 10 AM, the chance peaking at 83% around 11 AM.
Now. Boston Logan International Airport is 52° and mostly cloudy at 12 AM. The dew point is 36°, so the air feels dry and comfortable. Gentle breeze from the south at 8 mph.
Today and tonight. It warms to about 68° by 8 PM. Tonight falls to about 47° by 8 AM, with some cloud.
The week. The warmest day ahead is Tuesday, near 60°, and the coolest tomorrow, near 52°. Rain is likely tomorrow (85%). Frost is possible Sunday morning, a low of 36°.
The sky tonight. The sun sets at 6:01 PM. The Moon is a waxing crescent, 33% lit, and sets at 9:47 PM. The next full Moon is Monday, Oct 26. After dark, look for Saturn, bright in the east-southeast. A planet shines with a steady light where the stars around it twinkle. The Orionids meteor shower is active, peaking around Oct 21: at its peak, up to about 20 meteors an hour can be seen from a dark site. The day is 11 hours 4 minutes long, 3 minutes shorter than yesterday.
As of 12:00 AM in Boston Logan International Airport, Massachusetts.
Air quality
Index 20, good, led by fine particles. Read at 11 PM from its reporting area, Boston Metro (MA), 7 miles off.
Good each day through Sat Oct 17, led by fine particles. Yesterday measured 41, good.
No smoke near the ground through Sat 8 PM.
Precipitation
None in the last 24 hours; 0.06 in over the last 3 days, to Thu 11 PM. Measured by radar and rain gauges, as water.
Visibility
Mist or haze: visibility falls to 1 miles Fri 10 AM.
F
Now, today, and the week
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 04L / 22R | 7,864 ft | 150 ft | Asphalt | 20° / 200° | 8 mph head, on 22R | 3 mph from the left |
| 04R / 22L | 10,006 ft | 150 ft | Asphalt | 20° / 200° | 8 mph head, on 22L | 3 mph from the left |
| 09 / 27 | 7,001 ft | 150 ft | Asphalt | 77° / 257° | 2 mph head, on 27 | 9 mph from the left |
| 14 / 32 unlit | 5,000 ft | 100 ft | Asphalt | 126° / 306° | 5 mph head, on 14 | 7 mph from the right |
| 15L / 33R | 2,557 ft | 100 ft | Asphalt | 136° / 316° | 6 mph head, on 15L | 6 mph from the right |
| 15R / 33L | 10,083 ft | 150 ft | Asphalt | 135° / 315° | 6 mph head, on 15R | 6 mph from the right |
Measured here
Every hour from Boston/Logan INTL (BOS), Boston Logan International Airport's own instrument, measure by measure, on the field's own clock.
52 F at 11 PM Thursday; 61 F at its warmest, 12 PM Thursday, and 52 F at its coolest, 9 PM Thursday.
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
A dew point of 36 F, the air 54% saturated; the humidity ran from 36% at 12 PM Thursday to 74% at 3 AM Thursday.
How it is measured: Humidity variables, Field Book FB-WAT-002
10 mph from the south at 12 AM; at its strongest 17 mph, 9 AM Thursday, with a gust of 29 mph at 7 AM Thursday.
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
30.16 inHg at 12 AM, falling 0.03 inHg over 3 hours; 0.17 inHg higher than a day before.
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Down to 9 miles at 7 PM Thursday; 10 miles or more now.
How it is measured: Fog types, Field Book FB-WAT-020
The lowest cloud base came down to 4,200 ft at 6 AM Thursday; a base was reported in 22 of the hours.
How it is measured: Cloud classification, Field Book FB-SKY-001
None measured in the gauge in the last 24 hours.
How it is measured: ASOS, Field Book FB-INS-002
Boston/Logan INTL: every reading, the last 7 days, 30 days and the year, and how well it reports
The 5 instruments nearest Boston Logan International Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.1 miles away.
measured now3 instruments
At an airfield/0.1 mi away/30 ft/10 ft above here
temp, wind, gust, visibility, precip, pressure
QuincyMA004
Beside a road/8.7 mi away/131 ft/111 ft above here
temp, pavement temp, wind, visibility, precip
Blue Hills Obs USCRNBHIM3
At a river or reservoir gauge/11.7 mi away/620 ft/600 ft above here
temp, wind, gust, humidity, pressure
measured daily2 instruments
East Boston 0.1 SMA-SF-26
In a volunteer observer's own ground/1.3 mi away/47 ft/27 ft above here
precip, snowfall, snow depth
Jamacia PlainJPBM3
At a cooperative observer's station/6.8 mi away/102 ft/82 ft above here
snowfall, snow depth, precip, high, low
-
Snow on the ground
17 places, each with its own forecast and its own instruments.
The nearest places, each with its own forecast and the instruments nearest it.