Temperature
71 F at 1 AM; 71 F at its warmest, 1 AM, and 55 F at its coolest, 6 AM Thursday.
- Now
- 71F
- 1 AM
- Highest
- 71F
- 1 AM
- Lowest
- 55F
- 6 AM Thursday
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Union County Airport, Ohio
Small airport in Union County, Ohio71°
63°/56°
Clear·
Feels like 71°·Gentle breeze 11 mph SW
Coming up. Rain is likely early this morning, from about 2 AM (61%).
Now. Union County Airport is 71° and clear at 2 AM. The dew point is 70°, so the air feels oppressive. Gentle breeze from the southwest at 11 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 8 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 Thursday, near 70°, and the coolest tomorrow, near 52°. Rain is possible tomorrow (42%). The first freeze could come Sunday, a low of 31°.
The sky tonight. The sun sets at 6:52 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:47 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
6%Cloud
Now
2:00 AM
71feels71
61%
Today
Oct 16
6356
48%
16mph
Sat
Oct 17
5238
42%
16mph
UV 6
Sun
Oct 18
6031
UV 6
Mon
Oct 19
6536
clear day
Tue
Oct 20
6840
mostly clear day
Wed
Oct 21
6941
mostly clear day
Thu
Oct 22
7042
clear day
71°
63°56°
52°38°
60°31°
65°36°
68°40°
69°41°
70°42°
As of 2:00 AM in Union County Airport, Ohio.
Air quality
The air at Union County Airport
Index 55, moderate, led by fine particles. Read at 1 AM from its reporting area, Columbus (OH), 25 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
Little smoke near the ground through Sat 8 PM: the index from smoke stays at 6 or under.
Precipitation
What has fallen at Union County Airport
0.06 in in the last 24 hours, 0.13 in over the last 3 days, to Fri 1 AM. Measured by radar and rain gauges, as water.
- Last 24 hours
- 0.06in
- Last 3 days
- 0.13in
3 days agoLast 24 hours 46%
Visibility
How far you can see at Union County Airport, the next 43 hours
Visibility stays 3 miles or more through Sat 8 PM, lowest 4 miles Fri 12 PM.
F
Now, today, and the week
Weather instrument stations by state
Airfield
- Code
- MRT
- ICAO
- KMRT
- IATA
- -
- Field elevation
- 1,021 ft
- Serves
- Marysville
- Kind
- Small airport
- Scheduled service
- No
- Its own instrument
- MRT
- Wind now
- From 220° at 10 mph, read 16 Oct, 01:35
Runways
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 09 / 27 | 4,218 ft | 75 ft | Asphalt | 83° / 263° | 7 mph head, on 27 | 7 mph from the left |
Measured here
What the airfield's own instrument measured, the last 24 hours
Every hour from Marysville (MRT), Union County Airport's own instrument, measure by measure, on the field's own clock.
Humidity and dew point
A dew point of 71 F, the air 100% saturated; the humidity ran from 85% at 2 PM Thursday to 100% at 3 AM Thursday.
- Dew point now
- 71F
- 1 AM
- Humidity now
- 100%
- Humidity, range
- 85 to 100%
How it is measured: Humidity variables, Field Book FB-WAT-002
Wind
10 mph from the south southwest at 1 AM; at its strongest 12 mph, 11 PM Thursday, with a gust of 20 mph at 11 PM Thursday.
- Now
- 10mph
- from the south southwest
- Strongest
- 12mph
- 11 PM Thursday
- Highest gust
- 20mph
- 11 PM Thursday
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
Pressure
29.84 inHg at 1 AM, falling 0.04 inHg over 3 hours; 0.32 inHg lower than a day before.
- Now
- 29.84inHg
- 1 AM
- 3 hours
- -0.04inHg
- falling
- 24 hours
- -0.32inHg
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Visibility
Down to 1 mile at 5 PM Thursday; 8 miles now.
- Now
- 8mi
- Lowest
- 1mi
- 5 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 700 ft at 10 PM Thursday; a base was reported in 23 of the hours.
- Lowest base now
- -
- Lowest in 24 hours
- 700ft
- 10 PM Thursday
- Hours with a base reported
- 23
How it is measured: Cloud classification, Field Book FB-SKY-001
Precipitation
0.01 in measured in the gauge, the most, 0.01 in, in the hour to 12 AM.
- Last 24 hours
- 0.01in
- Wettest hour
- 0.01in
- 12 AM
- Hours with some
- 1
How it is measured: ASOS, Field Book FB-INS-002
Marysville: every reading, the last 7 days, 30 days and the year, and how well it reports
What is measuring near here
The 6 instruments nearest Union County 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 now4 instruments
MarysvilleMRT
At an airfield/0.0 mi away/1,021 ft/level with here
temp, wind, gust, visibility, precip, pressure
18-US33 @ SR739OH018
Beside a road/10.3 mi away/1,070 ft/49 ft above here
temp, pavement temp, wind, visibility, precip
Raymond 4NWRAYO1
At a river or reservoir gauge/11.2 mi away/1,070 ft/49 ft above here
temp, wind, gust, humidity, pressure
Molly Caren #1S2014
At a soil climate station/19.7 mi away/1,060 ft/39 ft above here
temp, humidity, soil temp, soil moisture
measured daily2 instruments
Marysville 1.3 ENEOH-UN-21
In a volunteer observer's own ground/1.2 mi away/996 ft/25 ft below here
precip, snowfall, snow depth
Water PlantMYVO1
At a cooperative observer's station/1.4 mi away/984 ft/37 ft below 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 Water Plant (MYVO1), 1.4 miles from here, read 15 Oct, 09:00. 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 Union County Airport
The nearest places, each with its own forecast and the instruments nearest it.
- Marysvillecity, 2 mi
- Milford Centervillage, 6 mi
- Unionville Centervillage, 6 mi
- New Californiacommunity, 8 mi
- Ostrandervillage, 8 mi
- Plain Cityvillage, 10 mi
- Raymondcommunity, 10 mi
- Woodstockvillage, 10 mi
- Magnetic Springsvillage, 10 mi
- North Lewisburgvillage, 11 mi
- Shawnee Hillsvillage, 12 mi
- Dublincity, 13 mi
Airports near Union County Airport
- Delaware Municipal AirportDLZ, 13 mi
- The Ohio State University Airport - Don Scott FieldOSU, 18 mi
- Madison County AirportUYF, 21 mi
- Grimes FieldI74, 22 mi
- Bolton FieldTZR, 25 mi
- Bellefontaine Regional AirportEDJ, 27 mi
- John Glenn Columbus International AirportCMH, 29 mi
- Hardin County AirportI95, 31 mi