Coming up. Tomorrow is 12 degrees cooler: a high of 54° after 66° today.
Now. John Glenn Columbus International Airport is 69° and overcast at 12 AM. The dew point is 67°, so the air feels oppressive. Gentle breeze from the south at 8 mph.
Today and tonight. It warms to about 71° by 1 AM. Tonight falls to about 42° by 8 AM, with some cloud. Air quality is moderate (index 56): fine for most people, though people unusually sensitive to air pollution may feel it outdoors.
The week. The warmest day ahead is Wednesday, near 69°, and the coolest tomorrow, near 54°. Rain is possible tomorrow (43%). Frost is possible Sunday morning, a low of 34°.
The sky tonight. The sun sets at 6:51 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:46 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 9 minutes long, 3 minutes shorter than yesterday.
As of 12:00 AM in John Glenn Columbus International Airport, Ohio.
Air quality
Index 56, moderate, led by fine particles. Read at 12 AM from its reporting area, Columbus (OH), 5 miles off.
Good each day through Tue Oct 20, led by fine particles. Yesterday measured 59, moderate.
Little smoke near the ground through Sat 8 PM: the index from smoke stays at 6 or under.
Precipitation
None in the last 24 hours; 0.55 in over the last 3 days, to Thu 11 PM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 3 miles or more through Sat 8 PM, lowest 4 miles Fri 2 PM.
F
Now, today, and the week
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 10L / 28R | 8,000 ft | 150 ft | Asphalt | 94° / 274° | 1 mph head, on 10L | 12 mph from the right |
| 10R / 28L | 10,114 ft | 150 ft | Asphalt | 94° / 274° | 1 mph head, on 10R | 12 mph from the right |
Measured here
Every hour from Columbus (CMH), John Glenn Columbus International Airport's own instrument, measure by measure, on the field's own clock.
69 F at 11 PM Thursday; 69 F at its warmest, 11 PM Thursday, and 57 F at its coolest, 8 AM Thursday.
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
A dew point of 67 F, the air 93% saturated; the humidity ran from 73% at 2 PM Thursday to 93% at 11 PM Thursday.
How it is measured: Humidity variables, Field Book FB-WAT-002
11 mph from the south at 12 AM; at its strongest 11 mph, 12 AM, with a gust of 18 mph at 11 PM Thursday.
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
29.87 inHg at 12 AM, falling 0.05 inHg over 3 hours; 0.25 inHg lower than a day before.
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Down to 7 miles at 4 PM Thursday; 8 miles now.
How it is measured: Fog types, Field Book FB-WAT-020
The lowest cloud base came down to 600 ft at 11 PM Thursday; a base was reported in 24 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
Columbus: every reading, the last 7 days, 30 days and the year, and how well it reports
The 6 instruments nearest John Glenn Columbus International Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.7 miles away.
measured now4 instruments
ColumbusCMH
At an airfield/0.7 mi away/810 ft/5 ft below here
temp, wind, gust, visibility, precip, pressure
121-I-670 Over Airport ConnectorOH111
Beside a road/1.6 mi away/814 ft/1 ft below here
temp, pavement temp, wind, visibility, precip
Raccoon Creek AT GranvilleGRNO1
At a river or reservoir gauge/18.7 mi away/902 ft/87 ft above here
temp, wind, gust, humidity, pressure
Molly Caren #1S2014
At a soil climate station/29.7 mi away/1,060 ft/245 ft above here
temp, humidity, soil temp, soil moisture
measured daily2 instruments
Columbus 4.1 ESEOH-FR-162
In a volunteer observer's own ground/1.9 mi away/782 ft/33 ft below here
precip, snowfall, snow depth
At a cooperative observer's station/4.3 mi away/797 ft/18 ft below here
snowfall, snow depth, precip, high, low
-
Snow on the ground
24 places, each with its own forecast and its own instruments.
The nearest places, each with its own forecast and the instruments nearest it.