Temperature
65 F at 8 PM; 65 F at its warmest, 8 PM, and 58 F at its coolest, 11 PM Wednesday.
- Now
- 65F
- 8 PM
- Highest
- 65F
- 8 PM
- Lowest
- 58F
- 11 PM Wednesday
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Coming up. Tomorrow is 11 degrees cooler: a high of 56° after 67° today.
Now. Aurora Municipal Airport is 65° and overcast at 9 PM. The dew point is 64°, so the air feels humid and sticky. Moderate breeze from the west at 14 mph, gusting to 26 mph.
Today and tonight. Tonight falls to about 45° by 7 AM, with some cloud.
The week. The warmest day ahead is Wednesday, near 72°, and the coolest tomorrow, near 56°. The days ahead look dry. The windiest day is tomorrow, with wind to 20 mph. The first freeze could come Saturday, a low of 32°.
The sky now. The Moon is a waxing crescent, 25% lit, and stays below the horizon until dawn. The next full Moon is Sunday, Oct 25. Look for Saturn, bright in the 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, 3 minutes shorter than yesterday.
As of 9:00 PM in Aurora Municipal Airport, Illinois.
Air quality
Index 29, good, led by fine particles. Read at 9 PM from its reporting area, Aurora and Elgin (IL), 4 miles off.
Good each day through Mon Oct 19, led by fine particles. Yesterday measured 28, good.
No smoke near the ground through Sat 1 PM.
Precipitation
0.69 in in the last 24 hours, 0.99 in over the last 3 days, to Thu 8 PM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 7 miles or more through Sat 1 PM, lowest 8 miles Thu 9 PM.
F
Now, today, and the week
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 09 / 27 | 6,501 ft | 100 ft | Concrete | 89° / 269° | 15 mph head, on 27 | None |
| 15 / 33 | 5,503 ft | 100 ft | Concrete | 147° / 327° | 8 mph head, on 33 | 13 mph from the left |
| 18 / 36 | 3,198 ft | 75 ft | Asphalt | 180° / 0° | 0 mph head, on 18 | 15 mph from the right |
Measured here
Every hour from Chicago/Aurora (ARR), Aurora Municipal Airport's own instrument, measure by measure, on the field's own clock.
65 F at 8 PM; 65 F at its warmest, 8 PM, and 58 F at its coolest, 11 PM Wednesday.
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
A dew point of 64 F, the air 98% saturated; the humidity ran from 77% at 11 PM Wednesday to 100% at 6 PM.
How it is measured: Humidity variables, Field Book FB-WAT-002
16 mph at 9 PM; at its strongest 16 mph, 9 PM, with a gust of 26 mph at 8 PM.
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
29.79 inHg at 9 PM, rising 0.03 inHg over 3 hours; 0.38 inHg lower than a day before.
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Down to 0.8 miles at 5 PM, under a mile for 1 hour; 6 miles now.
How it is measured: Fog types, Field Book FB-WAT-020
The lowest cloud base came down to 400 ft at 7 PM; a base was reported in 24 of the hours.
How it is measured: Cloud classification, Field Book FB-SKY-001
0.77 in measured in the gauge, the most, 0.45 in, in the hour to 5 PM.
How it is measured: ASOS, Field Book FB-INS-002
Chicago/Aurora: every reading, the last 7 days, 30 days and the year, and how well it reports
The 6 instruments nearest Aurora Municipal Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.3 miles away.
measured now4 instruments
At an airfield/0.3 mi away/705 ft/7 ft below here
temp, wind, gust, visibility, precip, pressure
US-34 @ Fox River BridgeSS1924
Beside a road/8.7 mi away/-/- ft from here
temp, pavement temp, wind, visibility, precip
Shabbona 5 NNE54811
At a climate reference station/19.8 mi away/861 ft/149 ft above here
temp, humidity, wind, solar, precip
ShabbonaSBNI2
At a river or reservoir gauge/19.9 mi away/863 ft/151 ft above here
temp, wind, gust, humidity, pressure
measured daily2 instruments
Sugar Grove 0.7 NEIL-KN-4
In a volunteer observer's own ground/1.5 mi away/715 ft/3 ft above here
precip, snowfall, snow depth
Aurora WaterARRI2
At a cooperative observer's station/8.6 mi away/676 ft/36 ft below here
snowfall, snow depth, precip, high, low
-
Snow on the ground
23 places, each with its own forecast and its own instruments.
The nearest places, each with its own forecast and the instruments nearest it.