Temperature
75 F at 3 AM; 95 F at its warmest, 3 PM Thursday, and 70 F at its coolest, 1 AM.
- Now
- 75F
- 3 AM
- Highest
- 95F
- 3 PM Thursday
- Lowest
- 70F
- 1 AM
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Alert. A Wind Advisory is in force for Randolph Air Force Base Auxiliary Airport until 7 PM today. Read the alert in full, and see what it means in the Field Book.
Now. Randolph Air Force Base Auxiliary Airport is 73° and mostly cloudy at 4 AM. The dew point is 65°, so the air feels oppressive. Gentle breeze from the north at 13 mph.
Today and tonight. The warmest of the day has passed; it cools to about 62° by 8 PM. Tonight falls to about 50° by 7 AM, under a mostly clear sky. The sun is strong around midday: UV index 7, high. Unprotected skin can burn in under half an hour.
The week. The warmest day ahead is Thursday, near 88°, and the coolest tomorrow, near 69°. The days ahead look dry. The windiest day is tomorrow, with wind to 20 mph.
The sky tonight. The sun sets at 7 PM. The Moon is a waxing crescent, 34% lit, and sets at 11:23 PM. The next full Moon is Sunday, Oct 25. 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 sky is forecast to stay clear: a good night to look up. The day is 11 hours 27 minutes long, 1 minute shorter than yesterday.
As of 4:00 AM in Randolph Air Force Base Auxiliary Airport, Texas.
Air quality
Index 34, good, led by fine particles. Read at 3 AM from its reporting area, San Antonio (TX), 36 miles off.
Good each day through Sun Oct 18, led by ozone. Yesterday measured 47, good.
Little smoke near the ground through Sat 7 PM: the index from smoke stays at 6 or under.
Precipitation
None in the last 3 days, to Fri 3 AM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 9 miles or more through Sat 7 PM, lowest 10 miles Fri 9 AM.
F
Now, today, and the week
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 13 / 31 unlit | 8,350 ft | 150 ft | Asphalt | 132° / 312° | 7 mph head, on 31 | 12 mph from the right |
Measured here
Every hour from Seguin Randolph AFB (SEQ), Randolph Air Force Base Auxiliary Airport's own instrument, measure by measure, on the field's own clock.
75 F at 3 AM; 95 F at its warmest, 3 PM Thursday, and 70 F at its coolest, 1 AM.
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
A dew point of 66 F, the air 74% saturated; the humidity ran from 36% at 3 PM Thursday to 94% at 8 AM Thursday.
How it is measured: Humidity variables, Field Book FB-WAT-002
14 mph from the north at 3 AM; at its strongest 14 mph, 3 AM, with a gust of 20 mph at 3 AM.
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
30.07 inHg at 3 AM, rising 0.04 inHg over 3 hours; 0.13 inHg higher than a day before.
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
10 miles or more every hour.
How it is measured: Fog types, Field Book FB-WAT-020
The lowest cloud base came down to 2,400 ft at 5 AM Thursday; a base was reported in 11 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
Seguin Randolph AFB: every reading, the last 7 days, 30 days and the year, and how well it reports
The 4 instruments nearest Randolph Air Force Base Auxiliary Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.4 miles away.
measured now2 instruments
At an airfield/0.4 mi away/530 ft/5 ft above here
temp, wind, gust, visibility, precip, pressure
At a river or reservoir gauge/13.1 mi away/438 ft/87 ft below here
temp, wind, gust, humidity, pressure
measured daily2 instruments
Seguin 2.6 ESETX-GP-108
In a volunteer observer's own ground/1.5 mi away/485 ft/40 ft below here
precip, snowfall, snow depth
Guadalupe River 1 SSW SeguinSEGT2
At a cooperative observer's station/4.1 mi away/499 ft/26 ft below here
snowfall, snow depth, precip, high, low
-
Snow on the ground
20 places, each with its own forecast and its own instruments.
The nearest places, each with its own forecast and the instruments nearest it.