Temperature
69 F at 1 AM; 69 F at its warmest, 1 AM, and 55 F at its coolest, 3 AM Thursday.
- Now
- 69F
- 1 AM
- Highest
- 69F
- 1 AM
- Lowest
- 55F
- 3 AM Thursday
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Knox County Airport, Ohio
Small airport in Knox County, Ohio69°
65°/56°
Light rain·
Feels like 69°·Light breeze 8 mph SW
Coming up. Rain is likely this morning, from about 11 AM (50%).
Now. Knox County Airport is 69° and light rain at 2 AM. The dew point is 69°, so the air feels oppressive. Light breeze from the southwest at 8 mph.
Today and tonight. The warmest of the day has passed; it cools to about 51° by 8 PM. Tonight falls to about 41° by 7 AM, with some cloud. Air quality is moderate (index 55): fine for most people, though people unusually sensitive to air pollution may feel it outdoors.
The week. The warmest day ahead is Tuesday, near 68°, and the coolest tomorrow, near 52°. Rain is likely tomorrow (64%). The first freeze could come Sunday, a low of 32°.
The sky tonight. The sun sets at 6:49 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:43 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, 3 minutes shorter than yesterday.
0UV Low
55Air quality
100%Humidity
76%Cloud
Now
2:00 AM
69feels69
47%
Today
Oct 16
6556
94%
15mph
Sat
Oct 17
5240
64%
14mph
Sun
Oct 18
6032
UV 6
Mon
Oct 19
6437
clear day
Tue
Oct 20
6841
mostly clear day
Wed
Oct 21
6843
clear day
Thu
Oct 22
6843
clear day
69°
65°56°
52°40°
60°32°
64°37°
68°41°
68°43°
68°43°
As of 2:00 AM in Knox County Airport, Ohio.
Air quality
The air at Knox County Airport
Index 55, moderate, led by fine particles. Read at 1 AM from its reporting area, Columbus (OH), 34 miles off.
55Moderate
- Fine particles (PM2.5)55Moderate-
- Ozone16Good-
- Coarse particles (PM10)22Good-
The days ahead
Good each day through Tue Oct 20, led by fine particles. Yesterday measured 47, good.
GoodModerate
- 47YesterdayOct 15
- 36TodayOct 16
- 31SatOct 17
- 44SunOct 18
- 50MonOct 19
- 39TueOct 20
Smoke, the next 43 hours
No smoke near the ground through Sat 8 PM.
Precipitation
What has fallen at Knox County Airport
None in the last 24 hours; 0.02 in over the last 3 days, to Fri 1 AM. Measured by radar and rain gauges, as water.
- Last 24 hours
- 0.00in
- Last 3 days
- 0.02in
3 days agoLast 24 hours 0%
Visibility
How far you can see at Knox County Airport, the next 43 hours
Visibility stays 4 miles or more through Sat 8 PM, lowest 5 miles Fri 1 PM.
F
Now, today, and the week
Weather instrument stations by state
Airfield
- Code
- 4I3
- ICAO
- -
- IATA
- -
- Field elevation
- 1,191 ft
- Serves
- Mount Vernon
- Kind
- Small airport
- Scheduled service
- No
- Its own instrument
- 4I3
- Wind now
- Variable at 7 mph, read 16 Oct, 01:35
Runways
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 10 / 28 | 5,504 ft | 100 ft | Asphalt | 98° / 278° | - | - |
Measured here
What the airfield's own instrument measured, the last 24 hours
Every hour from Mount Vernon (4I3), Knox County Airport's own instrument, measure by measure, on the field's own clock.
Humidity and dew point
A dew point of 69 F, the air 100% saturated; the humidity ran from 86% at 1 PM Thursday to 100% at 3 AM Thursday.
- Dew point now
- 69F
- 1 AM
- Humidity now
- 100%
- Humidity, range
- 86 to 100%
How it is measured: Humidity variables, Field Book FB-WAT-002
Wind
7 mph from the southwest at 1 AM; at its strongest 10 mph, 3 AM Thursday, with a gust of 18 mph at 3 AM Thursday.
- Now
- 7mph
- from the southwest
- Strongest
- 10mph
- 3 AM Thursday
- Highest gust
- 18mph
- 3 AM Thursday
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
Pressure
29.85 inHg at 1 AM, falling 0.07 inHg over 3 hours; 0.32 inHg lower than a day before.
- Now
- 29.85inHg
- 1 AM
- 3 hours
- -0.07inHg
- falling
- 24 hours
- -0.32inHg
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Visibility
Down to 2 miles at 9 PM Thursday; 10 miles or more now.
- Now
- 10+mi
- Lowest
- 2mi
- 9 PM Thursday
- Hours under a mile
- 0
How it is measured: Fog types, Field Book FB-WAT-020
Cloud base
The lowest cloud base came down to 200 ft at 9 PM Thursday; a base was reported in 23 of the hours.
- Lowest base now
- -
- Lowest in 24 hours
- 200ft
- 9 PM Thursday
- Hours with a base reported
- 23
How it is measured: Cloud classification, Field Book FB-SKY-001
Precipitation
None measured in the gauge in the last 24 hours.
- Last 24 hours
- 0.00in
- Wettest hour
- -
- Hours with some
- 0
How it is measured: ASOS, Field Book FB-INS-002
Mount Vernon: every reading, the last 7 days, 30 days and the year, and how well it reports
What is measuring near here
The 5 instruments nearest Knox County 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
Mount Vernon4I3
At an airfield/0.1 mi away/1,191 ft/level with here
temp, wind, gust, visibility, precip, pressure
Beside a road/3.8 mi away/1,043 ft/148 ft below here
temp, pavement temp, wind, visibility, precip
Raccoon Creek AT GranvilleGRNO1
At a river or reservoir gauge/18.0 mi away/902 ft/289 ft below here
temp, wind, gust, humidity, pressure
measured daily2 instruments
Utica 3.8 NOH-KN-11
In a volunteer observer's own ground/4.8 mi away/984 ft/207 ft below here
precip, snowfall, snow depth
Centerburg 2 SECTRO1
At a cooperative observer's station/6.9 mi away/1,204 ft/13 ft above here
snowfall, snow depth, precip, high, low
What the snow tracker reads here
Every instrument in this state
0in
Snow on the ground
Measured at Centerburg 2 SE (CTRO1), 6.9 miles from here, read 15 Oct, 08:00. measured daily
Elsewhere in Ohio
24 places, each with its own forecast and its own instruments.
AkroncityAshtabulacityAshtabula LighthouselighthouseBoston Millsski areaChardoncityCincinnaticityClevelandcityColumbuscityDaytoncityFindlaycityGeneva-on-the-LaketownHocking HillsfeatureLimacityMad River Mountainski areaMansfieldcityMariettacityPut-in-BaytownSanduskycitySnow Trailsski areaSpringfieldcityToledocityWoostercityYoungstowncityZanesvillecity
Near Knox County Airport
The nearest places, each with its own forecast and the instruments nearest it.
- South Mount Vernoncommunity, 4 mi
- Mount Vernoncity, 5 mi
- Uticavillage, 7 mi
- Gambiervillage, 8 mi
- Centerburgvillage, 9 mi
- Martinsburgvillage, 10 mi
- Spartavillage, 10 mi
- Fredericktownvillage, 11 mi
- Hartford (Croton)village, 11 mi
- Howardcommunity, 12 mi
- Apple Valleycommunity, 12 mi
- St. Louisvillevillage, 12 mi
Airports near Knox County Airport
- Newark Heath AirportVTA, 21 mi
- John Glenn Columbus International AirportCMH, 30 mi
- Delaware Municipal AirportDLZ, 31 mi
- Holmes County Airport10G, 33 mi
- The Ohio State University Airport - Don Scott FieldOSU, 34 mi
- Mansfield Lahm Regional AirportMFD, 34 mi
- Marion Municipal AirportMNN, 35 mi
- Richard Downing AirportI40, 35 mi