Now. Scott AFB/Midamerica Airport is 67° and overcast at 12 AM. The dew point is 61°, so the air feels humid and sticky. Fresh breeze from the northwest at 21 mph.
Today and tonight. The warmest of the day has passed; it cools to about 51° by 8 PM. Tonight falls to about 38° by 7 AM, under a mostly clear sky. No rain is expected for the rest of the day.
The week. The warmest day ahead is Thursday, near 81°, and the coolest tomorrow, near 61°. The days ahead look dry. Frost is possible Sunday morning, a low of 34°.
The sky tonight. The sun sets at 6:20 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:20 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 12 minutes long, 3 minutes shorter than yesterday.
As of 12:00 AM in Scott AFB/Midamerica Airport, Illinois.
Air quality
Index 20, good, led by ozone. Read at 11 PM from its reporting area, St. Louis (Metro-east) (IL), 7 miles off.
Good each day through Mon Oct 19, led by fine particles. Yesterday measured 39, good.
No smoke near the ground through Sat 7 PM.
Precipitation
0.35 in in the last 24 hours, 0.78 in over the last 3 days, to Thu 11 PM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 7 miles or more through Sat 7 PM, lowest 7 miles Fri 5 PM.
F
Now, today, and the week
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 14L / 32R | 10,000 ft | 150 ft | Concrete | 137° / 317° | 22 mph head, on 32R | 11 mph from the left |
| 14R / 32L | 8,006 ft | 150 ft | Asphalt and concrete | 137° / 317° | 22 mph head, on 32L | 11 mph from the left |
Measured here
Every hour from Belleville - Scott AFB (BLV), Scott AFB/Midamerica Airport's own instrument, measure by measure, on the field's own clock.
75 F at 10 PM Thursday; 82 F at its warmest, 4 PM Thursday, and 66 F at its coolest, 1 AM Thursday.
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
A dew point of 68 F, the air 78% saturated; the humidity ran from 76% at 4 PM Thursday to 100% at 12 PM Thursday.
How it is measured: Humidity variables, Field Book FB-WAT-002
18 mph from the west northwest at 10 PM Thursday; at its strongest 18 mph, 10 PM Thursday, with a gust of 24 mph at 10 PM Thursday.
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
29.92 inHg at 10 PM Thursday, rising 0.02 inHg over 3 hours; 0.12 inHg lower than a day before.
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Down to 2 miles at 12 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 200 ft at 7 AM Thursday; a base was reported in 20 of the hours.
How it is measured: Cloud classification, Field Book FB-SKY-001
0.36 in measured in the gauge, the most, 0.17 in, in the hour to 8 AM Thursday.
How it is measured: ASOS, Field Book FB-INS-002
The 5 instruments nearest Scott AFB/Midamerica Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.9 miles away.
measured now3 instruments
At an airfield/0.9 mi away/440 ft/19 ft below here
temp, wind, gust, visibility, precip, pressure
64 @ IL-160SS1911
Beside a road/8.3 mi away/-/- ft from here
temp, pavement temp, wind, visibility, precip
Mississippi River AT Mel Price LDALNI2
At a river or reservoir gauge/30.0 mi away/394 ft/65 ft below here
temp, wind, gust, humidity, pressure
measured daily2 instruments
Scott Afb 1.5 SWIL-SC-24
In a volunteer observer's own ground/2.1 mi away/450 ft/9 ft below here
precip, snowfall, snow depth
Southern Illinois UniversitySIUI2
On a college campus/3.2 mi away/456 ft/3 ft below here
snowfall, snow depth, precip, high, low
0in
Snow on the ground
Measured at Mississippi River AT Mel Price LD (ALNI2), 30.0 miles from here, read 15 Oct, 05:00. measured daily
23 places, each with its own forecast and its own instruments.
The nearest places, each with its own forecast and the instruments nearest it.