Temperature
59 F at 3 AM; 73 F at its warmest, 10 PM Thursday, and 59 F at its coolest, 3 AM.
- Now
- 59F
- 3 AM
- Highest
- 73F
- 10 PM Thursday
- Lowest
- 59F
- 3 AM
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Coming up. Rain is likely this evening, from about 8 PM (50%).
Now. Purdue University Airport is 61° and light rain at 3 AM. The dew point is 56°, so the air feels a little humid. Moderate breeze from the west at 15 mph.
Today and tonight. It warms to about 64° by 3 AM. Tonight falls to about 39° by 8 AM, under a mostly clear sky.
The week. The warmest day ahead is Thursday, near 76°, and the coolest tomorrow, near 57°. Rain is likely tomorrow (52%). Frost is possible Sunday morning, a low of 35°.
The sky tonight. The sun sets at 7:06 PM. The Moon is a waxing crescent, 33% lit, and sets at 11:01 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 8 minutes long, 3 minutes shorter than yesterday.
As of 3:00 AM in Purdue University Airport, Indiana.
Air quality
Index 24, good, led by fine particles. Read at 2 AM from its reporting area, Lafayette (IN), 5 miles off.
Yesterday measured 22, good.
No smoke near the ground through Sat 8 PM.
Precipitation
0.28 in in the last 24 hours, and none in the 2 days before, to Fri 2 AM. Measured by radar and rain gauges, as water.
Visibility
Mist or haze: visibility falls to 2 miles Fri 7 PM.
F
Now, today, and the week
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 05 / 23 | 4,225 ft | 100 ft | Asphalt | 49° / 229° | 8 mph head, on 23 | 14 mph from the right |
| 10 / 28 | 6,600 ft | 150 ft | Asphalt | 99° / 279° | 16 mph head, on 28 | 3 mph from the right |
Measured here
Every hour from Lafayette (LAF), Purdue University Airport's own instrument, measure by measure, on the field's own clock.
59 F at 3 AM; 73 F at its warmest, 10 PM Thursday, and 59 F at its coolest, 3 AM.
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
A dew point of 56 F, the air 90% saturated; the humidity ran from 73% at 11 AM Thursday to 97% at 7 PM Thursday.
How it is measured: Humidity variables, Field Book FB-WAT-002
14 mph from the west northwest at 3 AM; at its strongest 18 mph, 2 AM, with a gust of 33 mph at 2 AM.
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
29.89 inHg at 3 AM, rising 0.07 inHg over 3 hours; 0.21 inHg lower than a day before.
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Down to 2 miles at 4 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 600 ft at 2 AM; a base was reported in 24 of the hours.
How it is measured: Cloud classification, Field Book FB-SKY-001
0.30 in measured in the gauge, the most, 0.11 in, in the hour to 1 AM.
How it is measured: ASOS, Field Book FB-INS-002
Lafayette: every reading, the last 7 days, 30 days and the year, and how well it reports
The 4 instruments nearest Purdue University Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.3 miles away.
measured now2 instruments
LafayetteLAF
At an airfield/0.3 mi away/597 ft/9 ft below here
temp, wind, gust, visibility, precip, pressure
I-65 at US-24IN048
Beside a road/26.2 mi away/745 ft/139 ft above here
temp, pavement temp, wind, visibility, precip
measured daily2 instruments
West Lafayette 1.8 SSWIN-TP-34
In a volunteer observer's own ground/0.9 mi away/624 ft/18 ft above here
precip, snowfall, snow depth
West LafayetteLAFI3
At a cooperative observer's station/2.1 mi away/531 ft/75 ft below here
snowfall, snow depth, precip, high, low
0in
Snow on the ground
Measured at West Lafayette (LAFI3), 2.1 miles from here, read 8 Oct, 06:00. 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.