Temperature
58 F at 12 AM; 71 F at its warmest, 12 PM Thursday, and 58 F at its coolest, 12 AM.
- Now
- 58F
- 12 AM
- Highest
- 71F
- 12 PM Thursday
- Lowest
- 58F
- 12 AM
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Now. Rantoul National Aviation Center - Frank Elliot field is 55° and light rain at 1 AM. The dew point is 59°, so the air feels a little humid. Moderate breeze from the west-northwest at 15 mph.
Today and tonight. It warms to about 59° by 1 AM. Tonight falls to about 36° by 7 AM, under a mostly clear sky. Frost can form on the ground in sheltered spots.
The week. The warmest day ahead is Thursday, near 77°, and the coolest tomorrow, near 57°. The days ahead look dry. Frost is possible tomorrow morning, a low of 36°.
The sky tonight. The sun sets at 6:11 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:06 PM. The next full Moon is Sunday, Oct 25. 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 1:00 AM in Rantoul National Aviation Center - Frank Elliot field, Illinois.
Air quality
Index 21, good, led by fine particles. Read at 12 AM from its reporting area, Champaign (IL), 9 miles off.
Good each day through Mon Oct 19, led by fine particles. Yesterday measured 43, good.
No smoke near the ground through Sat 7 PM.
Precipitation
0.12 in in the last 24 hours, and none in the 2 days before, to Fri 12 AM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 8 miles or more through Sat 7 PM, lowest 9 miles Fri 2 AM.
F
Now, today, and the week
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 09 / 27 | 5,001 ft | 75 ft | Asphalt | 90° / 270° | 11 mph head, on 27 | 10 mph from the right |
| 18 / 36 unlit | 4,894 ft | 75 ft | Concrete | 180° / 0° | 10 mph head, on 36 | 11 mph from the left |
Measured here
Every hour from Rantoul (TIP), Rantoul National Aviation Center - Frank Elliot field's own instrument, measure by measure, on the field's own clock.
58 F at 12 AM; 71 F at its warmest, 12 PM Thursday, and 58 F at its coolest, 12 AM.
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
A dew point of 57 F, the air 99% saturated; the humidity ran from 77% at 12 PM Thursday to 100% at 3 PM Thursday.
How it is measured: Humidity variables, Field Book FB-WAT-002
16 mph from the northwest at 12 AM; at its strongest 16 mph, 12 AM, with a gust of 29 mph at 12 AM.
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
29.93 inHg at 12 AM, rising 0.07 inHg over 3 hours; 0.18 inHg lower than a day before.
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Down to 3 miles at 7 AM Thursday; 4 miles now.
How it is measured: Fog types, Field Book FB-WAT-020
The lowest cloud base came down to 400 ft at 3 PM Thursday; a base was reported in 22 of the hours.
How it is measured: Cloud classification, Field Book FB-SKY-001
0.06 in measured in the gauge, the most, 0.05 in, in the hour to 2 PM Thursday.
How it is measured: ASOS, Field Book FB-INS-002
Rantoul: every reading, the last 7 days, 30 days and the year, and how well it reports
The 5 instruments nearest Rantoul National Aviation Center - Frank Elliot 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
RantoulTIP
At an airfield/0.0 mi away/738 ft/1 ft above here
temp, wind, gust, visibility, precip, pressure
Urbana [CCOOP]URBI2
At a river or reservoir gauge/15.4 mi away/722 ft/15 ft below here
temp, wind, gust, humidity, pressure
Champaign 9 SW54808
At a climate reference station/20.7 mi away/700 ft/37 ft below here
temp, humidity, wind, solar, precip
measured daily2 instruments
RantoulRANI2
At a cooperative observer's station/1.6 mi away/768 ft/31 ft above here
snowfall, snow depth, precip, high, low
Rantoul 1.2 NEIL-CP-159
In a volunteer observer's own ground/1.7 mi away/749 ft/12 ft above here
precip, snowfall, snow depth
0in
Snow on the ground
Measured at Rantoul (RANI2), 1.6 miles from here, read 15 Oct, 07:00. 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.