Now. Mount Sterling Municipal Airport is 53° and mostly cloudy at 12 AM. The dew point is 48°, so the air feels dry and comfortable. Moderate breeze from the northwest at 19 mph.
Today and tonight. It warms to about 55° by 5 PM. Tonight falls to about 35° by 7 AM, under a mostly clear sky. Frost can form on the ground in sheltered spots.
The week. The warmest day ahead is Thursday, near 77°, and the coolest tomorrow, near 57°. The days ahead look dry. Frost is possible tomorrow morning, a low of 35°.
The sky tonight. The sun sets at 6:22 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:19 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 9 minutes long, 3 minutes shorter than yesterday.
As of 12:00 AM in Mount Sterling Municipal Airport, Illinois.
Air quality
Index 12, good, led by fine particles. Read at 11 PM from its reporting area, Springfield (IL), 60 miles off.
Good each day through Mon Oct 19, led by fine particles. Yesterday measured 43, good.
No smoke near the ground through Sat 7 PM.
Precipitation
0.09 in in the last 24 hours, 0.52 in over the last 3 days, to Thu 11 PM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 8 miles or more through Sat 7 PM, lowest 9 miles Sat 8 AM.
F
Now, today, and the week
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 18 / 36 | 5,905 ft | 75 ft | Asphalt | 181° / 1° | 13 mph head, on 36 | 16 mph from the left |
Measured here
Every hour from Mount Sterling (I63), Mount Sterling Municipal Airport's own instrument, measure by measure, on the field's own clock.
54 F at 10 PM Thursday; 73 F at its warmest, 3 PM Thursday, and 54 F at its coolest, 10 PM Thursday.
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
A dew point of 49 F, the air 83% saturated; the humidity ran from 82% at 4 AM Thursday to 98% at 1 PM Thursday.
How it is measured: Humidity variables, Field Book FB-WAT-002
19 mph from the northwest at 10 PM Thursday; at its strongest 24 mph, 8 PM Thursday, with a gust of 33 mph at 8 PM Thursday.
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
30.04 inHg at 10 PM Thursday, rising 0.14 inHg over 3 hours; 0.05 inHg lower than a day before.
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Down to 2 miles at 1 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 400 ft at 11 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
Mount Sterling: every reading, the last 7 days, 30 days and the year, and how well it reports
The 5 instruments nearest Mount Sterling Municipal Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.0 miles away.
measured now3 instruments
At an airfield/0.0 mi away/721 ft/13 ft below here
temp, wind, gust, visibility, precip, pressure
Perry [CCOOP]PEYI2
At a river or reservoir gauge/13.0 mi away/633 ft/101 ft below here
temp, wind, gust, humidity, pressure
US-67 @ BeardstownSS1908
Beside a road/19.1 mi away/-/- ft from here
temp, pavement temp, wind, visibility, precip
measured daily2 instruments
Camp Point 4.6 NWIL-AD-20
In a volunteer observer's own ground/15.5 mi away/676 ft/58 ft below here
precip, snowfall, snow depth
AugustaAUGI2
At a cooperative observer's station/18.3 mi away/666 ft/68 ft below here
snowfall, snow depth, precip, high, low
0in
Snow on the ground
Measured at Augusta (AUGI2), 18.3 miles from here, read 14 Oct, 05:50. 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.