Temperature
59 F at 9 AM; 68 F at its warmest, 3 PM Thursday, and 55 F at its coolest, 3 AM.
- Now
- 59F
- 9 AM
- Highest
- 68F
- 3 PM Thursday
- Lowest
- 55F
- 3 AM
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Airports/Pennsylvania/Allentown Queen City Municipal Airport
Coming up. Rain is likely this evening, from about 6 PM (74%).
Now. Allentown Queen City Municipal Airport is 60° and overcast at 9 AM. The dew point is 59°, so the air feels a little humid. Light air from the south-southwest at 2 mph.
Today and tonight. It warms to about 77° by 3 PM. Tonight falls to about 45° by 7 AM, with some cloud.
The week. The warmest day ahead is Tuesday, near 65°, and the coolest tomorrow, near 52°. The days ahead look dry. Frost is possible Sunday morning, a low of 34°.
The sky tonight. The sun sets at 6:21 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:13 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 8 minutes long, 2 minutes shorter than yesterday.
As of 9:00 AM in Allentown Queen City Municipal Airport, Pennsylvania.
Air quality
Index 19, good, led by fine particles. Read at 9 AM from its reporting area, Lehigh Valley (PA), 6 miles off.
Good each day through Sun Oct 18, led by fine particles. Yesterday measured 31, good.
Little smoke near the ground through Sun 2 AM: the index from smoke stays at 6 or under.
Precipitation
0.03 in in the last 24 hours, 0.06 in over the last 3 days, to Fri 8 AM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 6 miles or more through Sun 2 AM, lowest 6 miles Fri 9 AM.
F
Now, today, and the week
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 07 / 25 | 3,950 ft | 75 ft | Asphalt | 59° / 239° | Calm | Calm |
| 15 / 33 | 3,160 ft | 75 ft | Asphalt | 135° / 315° | Calm | Calm |
Measured here
Every hour from Allentown (XLL), Allentown Queen City Municipal Airport's own instrument, measure by measure, on the field's own clock.
59 F at 9 AM; 68 F at its warmest, 3 PM Thursday, and 55 F at its coolest, 3 AM.
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
A dew point of 58 F, the air 97% saturated; the humidity ran from 48% at 3 PM Thursday to 100% at 5 AM.
How it is measured: Humidity variables, Field Book FB-WAT-002
Calm at 9 AM; at its strongest 9 mph, 8 PM Thursday, and no gust reported.
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
29.89 inHg at 9 AM, falling 0.06 inHg over 3 hours; 0.36 inHg lower than a day before.
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Down to 2 miles at 8 AM; 3 miles now.
How it is measured: Fog types, Field Book FB-WAT-020
The lowest cloud base came down to 300 ft at 7 AM; a base was reported in 17 of the hours.
How it is measured: Cloud classification, Field Book FB-SKY-001
0.05 in measured in the gauge, the most, 0.04 in, in the hour to 6 AM.
How it is measured: ASOS, Field Book FB-INS-002
Allentown: every reading, the last 7 days, 30 days and the year, and how well it reports
The 5 instruments nearest Allentown Queen City Municipal 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
AllentownXLL
At an airfield/0.1 mi away/400 ft/1 ft above here
temp, wind, gust, visibility, precip, pressure
SR33 & Wind GapPA037
Beside a road/22.5 mi away/984 ft/585 ft above here
temp, pavement temp, wind, visibility, precip
Perkiomen Creek AT GraterfordGRAP1
At a river or reservoir gauge/23.4 mi away/161 ft/238 ft below here
temp, wind, gust, humidity, pressure
measured daily2 instruments
Allentown 0.9 SPA-LH-37
In a volunteer observer's own ground/1.0 mi away/344 ft/55 ft below here
precip, snowfall, snow depth
SpringtownSPRP1
At a cooperative observer's station/10.7 mi away/797 ft/398 ft above here
snowfall, snow depth, precip, high, low
-
Snow on the ground
24 places, each with its own forecast and its own instruments.
The nearest places, each with its own forecast and the instruments nearest it.