Temperature
71 F at 5 AM; 74 F at its warmest, 11 PM Thursday, and 62 F at its coolest, 8 AM Thursday.
- Now
- 71F
- 5 AM
- Highest
- 74F
- 11 PM Thursday
- Lowest
- 62F
- 8 AM Thursday
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Now. Butler Co Regional Airport - Hogan Field is 70° and partly cloudy at 5 AM. The dew point is 64°, so the air feels humid and sticky. Light breeze from the west-southwest at 5 mph.
Today and tonight. The warmest of the day has passed; it cools to about 50° by 8 PM. Tonight falls to about 38° by 8 AM, under a mostly clear sky. 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 71°, and the coolest tomorrow, near 54°. The days ahead look dry. The first freeze could come Sunday, a low of 30°.
The sky tonight. The sun sets at 6:58 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:55 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 sky is forecast to stay clear: a good night to look up. The day is 11 hours 10 minutes long, 3 minutes shorter than yesterday.
As of 5:00 AM in Butler Co Regional Airport - Hogan Field, Ohio.
Air quality
Index 55, moderate, led by fine particles. Read at 5 AM from its reporting area, Cincinnati (OH), 18 miles off.
Moderate each day through Today, led by fine particles. Yesterday measured 52, moderate.
No smoke near the ground through Sun 2 AM.
Precipitation
None in the last 24 hours; 0.39 in over the last 3 days, to Fri 4 AM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 8 miles or more through Sun 2 AM, lowest 9 miles Fri 7 AM.
F
Now, today, and the week
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 12 / 30 | 5,500 ft | 100 ft | Asphalt | 111° / 291° | - | - |
Measured here
Every hour from Hamilton (HAO), Butler Co Regional Airport - Hogan Field's own instrument, measure by measure, on the field's own clock.
71 F at 5 AM; 74 F at its warmest, 11 PM Thursday, and 62 F at its coolest, 8 AM Thursday.
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
A dew point of 65 F, the air 81% saturated; the humidity ran from 77% at 4 PM Thursday to 93% at 10 PM Thursday.
How it is measured: Humidity variables, Field Book FB-WAT-002
4 mph from the southwest at 5 AM; at its strongest 7 mph, 9 AM Thursday, and no gust reported.
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
29.87 inHg at 5 AM, steady over 3 hours; 0.25 inHg lower than a day before.
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Down to 6 miles at 10 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 1,300 ft at 8 AM Thursday; a base was reported in 23 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
Hamilton: every reading, the last 7 days, 30 days and the year, and how well it reports
The 5 instruments nearest Butler Co Regional Airport - Hogan Field, 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
HamiltonHAO
At an airfield/0.0 mi away/617 ft/16 ft below here
temp, wind, gust, visibility, precip, pressure
72-IR75 MM 19OH064
Beside a road/5.9 mi away/637 ft/4 ft above here
temp, pavement temp, wind, visibility, precip
AmeliaAMEO1
At a river or reservoir gauge/28.7 mi away/877 ft/244 ft above here
temp, wind, gust, humidity, pressure
measured daily2 instruments
Hamilton 1.3 ESEOH-BT-5
In a volunteer observer's own ground/1.7 mi away/631 ft/2 ft below here
precip, snowfall, snow depth
FairfieldFRFO1
At a cooperative observer's station/3.2 mi away/574 ft/59 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.