WxDecoder

4LL8 Weather Colonial Acres Airport

Sycamore, IllinoisElevation 840 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KARR · 16 NM SE · 22 min old
No ceiling, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KARR
WIND
Calm
no steady wind
VISIBILITY
10 SM
16.1 km
CEILING
None
no BKN/OVC layer
FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

No aviation METAR is published for this airport. The nearest National Weather Service station reports wind from 160° at 3 kt, visibility 10 SM, temperature 15.1C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly cloudy, low near 50F, 2% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Thursday: Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Cloudy 50 SSW 4 kt – 2%
Monday Patchy Fog then Mostly Cloudy 63/47 NE 9 kt 17 kt 3%
Tuesday Mostly Cloudy 67/54 SE 9 kt – 10%
Wednesday Mostly Sunny 71/56 S 9 kt – 15%
Thursday Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms 75/55 SW 9 kt – 29% Thunderstorms in the forecast
Friday Chance Rain Showers 74/56 SSE 9 kt – 39%
Saturday Chance Rain Showers 71/55 SSE 9 kt – 51%
Sunday Chance Rain Showers 69 SW 9 kt – 32%

Source: National Weather Service (office LOT). Forecast issued 0113Z.

Radar

Radar data: NOAA/NWS MRMS composite reflectivity. For situational awareness only, not a substitute for an official weather briefing.

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RUNWAYS & WIND
Crosswind calculator
No runway layout is available for 4LL8. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 2,000 ft

N/S
Dimensions
2,000 x 125 ft
Surface
Turf
RWY N
RWY S

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

FIELD CONDITIONS

Field elevation

Field elevation
840 ft MSL

Density and pressure altitude need a current temperature and altimeter from the METAR.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2258Z 5:58 PM
Sunrise
1219Z 7:19 AM
Loggable night
2326Z (6:26 PM local) → 1151Z (6:51 AM local)
end of evening to start of morning civil twilight
Position lights required
2258Z (5:58 PM local) → 1219Z (7:19 AM local)
sunset to sunrise (91.209)
Night passenger currency
2358Z (6:58 PM local) → 1119Z (6:19 AM local)
1 hr after sunset to 1 hr before sunrise (61.57(b))

FAA definitions, shown in Zulu with airport-local time. Verify for your operation.

AIRPORT INFORMATION

Facility & services

Colonial Acres Airport is in Sycamore, Illinois. Field elevation 840 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSmall airport
ManagerR. B. GRIFFITH
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATA4LL8
SectionalCHICAGO
Center (ARTCC)CHICAGO
Flight service (AFSS)KANKAKEE
RegionIllinois
CountryUnited States
Coordinates41.9993, -88.6486
Distance from city2 NM NE
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

4LL8 traffic patterns

2026-07-03 to 2026-10-19, 5 days observed · data 2026-10-23

Low confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
1
AVG OPS/DAY
2
Operations trend (1 days)

Busiest day: Thu · Busiest month: Aug

FLEET MIX
Piston single 78%Turboprop 22%

Mostly small piston aircraft.

TOP AIRCRAFT TYPES
›L8 (Piston single) · ~2 landings/mo
›A660 (Turboprop) · ~1 landings/mo
›C172 (Piston single) · ~1 landings/mo
›RV8 (Piston single) · ~1 landings/mo
Data limitations (4)
›ADS-B coverage is incomplete; counts are an observed lower bound, not official totals.
›Some aircraft do not transmit usable ADS-B and are not counted.
›Aircraft types and based estimates are inferred and may be wrong.
›This is not official ATC, FAA, or airport data.
NEARBY AIRPORTS

Weather reference stations

4LL8 has no on-field report. Nearest reporting station: KARR (16 NM SE, VFR).

KARR Aurora Municipal Airport
16 NM SE
VFR
KDPA Dupage Airport
19 NM E
VFR
KRFD Chicago Rockford International Airport
23 NM NW
VFR
KORD Chicago O'Hare International Airport
33 NM E
VFR
KLOT Lewis University Airport
34 NM SE
VFR
KJOT Joliet Regional Airport
36 NM SE
VFR
AIRPORT REMARKS

Operational remarks

›FOR CD CTC CHICAGO APCH AT 847-289-0926.
›FOR OTHER INFO. OR QUESTIONS CONTACT: BRUCE GRIFFITH 15559 MT. HUNGER RD SYCAMORE, IL 60178 815-751-4543
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗4LL8 on OurAirports
FREQUENTLY ASKED
Does 4LL8 have a METAR?
No on-field METAR is issued for 4LL8. This page uses the nearest reporting station as a reference.
Does 4LL8 have a TAF?
No TAF is issued directly for 4LL8. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at 4LL8?
4LL8 sits at 840 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for 4LL8?
No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.
This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.