Now. Whiteside County Airport - Joseph H Bittorf Field is 53° and overcast at 12 AM. The dew point is 50°, so the air feels dry and comfortable. Moderate breeze from the west-northwest at 18 mph.
Today and tonight. Tonight falls to about 32° by 7 AM, under a mostly clear sky. A freeze: protect plants and pipes. No rain is expected for the rest of the day.
The week. The warmest day ahead is Thursday, near 75°, and the coolest tomorrow, near 58°. The days ahead look dry. The first freeze could come tomorrow, a low of 32°.
The sky tonight. The sun sets at 6:16 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:07 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 5 minutes long, 3 minutes shorter than yesterday.
As of 12:00 AM in Whiteside County Airport - Joseph H Bittorf Field, Illinois.
Air quality
Index 11, good, led by ozone. Read at 11 PM from its reporting area, Clinton (IA), 28 miles off.
Yesterday measured 30, good.
No smoke near the ground through Sat 7 PM.
Precipitation
0.42 in in the last 24 hours, 0.43 in over the last 3 days, to Thu 11 PM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 7 miles or more through Sat 7 PM, lowest 8 miles Fri 9 AM.
F
Now, today, and the week
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 07 / 25 | 6,499 ft | 150 ft | Asphalt | 70° / 250° | 15 mph head, on 25 | 13 mph from the right |
| 18 / 36 | 3,900 ft | 100 ft | Asphalt | 180° / 0° | 7 mph head, on 36 | 19 mph from the left |
Measured here
Every hour from Sterling Rockfal (SQI), Whiteside County Airport - Joseph H Bittorf Field's own instrument, measure by measure, on the field's own clock.
55 F at 10 PM Thursday; 63 F at its warmest, 6 PM Thursday, and 55 F at its coolest, 10 PM Thursday.
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
A dew point of 53 F, the air 92% saturated; the humidity ran from 80% at 1 AM Thursday to 100% at 11 AM Thursday.
How it is measured: Humidity variables, Field Book FB-WAT-002
18 mph from the west northwest at 10 PM Thursday; at its strongest 19 mph, 8 PM Thursday, with a gust of 26 mph at 8 PM Thursday.
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
29.91 inHg at 10 PM Thursday, rising 0.09 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 0.8 miles at 3 PM Thursday, under a mile for 1 hour; 9 miles now.
How it is measured: Fog types, Field Book FB-WAT-020
The lowest cloud base came down to 300 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
0.36 in measured in the gauge, the most, 0.12 in, in the hour to 6 AM Thursday.
How it is measured: ASOS, Field Book FB-INS-002
Sterling Rockfal: every reading, the last 7 days, 30 days and the year, and how well it reports
The 5 instruments nearest Whiteside County Airport - Joseph H Bittorf Field, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.1 miles away.
measured now3 instruments
At an airfield/0.1 mi away/646 ft/2 ft below here
temp, wind, gust, visibility, precip, pressure
I-80 @ Hennepin Canal M.P. 44SS0536
Beside a road/24.6 mi away/-/- ft from here
temp, pavement temp, wind, visibility, precip
Mississippi River AT Fulton LD13FLTI2
At a river or reservoir gauge/27.3 mi away/577 ft/71 ft below here
temp, wind, gust, humidity, pressure
measured daily2 instruments
Rock Falls 3.1 SIL-WD-22
In a volunteer observer's own ground/1.7 mi away/649 ft/1 ft above here
precip, snowfall, snow depth
Dixon WWTPDXNI2
At a water treatment plant/10.4 mi away/650 ft/2 ft above here
snowfall, snow depth, precip, high, low
-
Snow on the ground
23 places, each with its own forecast and its own instruments.
The nearest places, each with its own forecast and the instruments nearest it.