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Colonial Acres Airport (4LL8) Area Aviation Weather & Runway Winds

As of 9:55 AM CDT, Oct 29, based on the nearest station (KDKB), 4LL8 is currently MVFR with winds from 250° at 7 knots, visibility 10+ statute miles, and a 3,000 ft ceiling.

Aviation weather near Colonial Acres Airport in Sycamore, IL, decoded from the nearest reporting station (KDKB): conditions and runway crosswinds.

Colonial Acres Airport (4LL8) is a general aviation airport serving pilots in and around Sycamore, IL at a field elevation of 840 ft. 4LL8 has no weather station of its own. Conditions here are decoded from KDKB, about 5 nm away, the nearest reporting station, and local conditions can differ. It has 2 physical runways (N, S), the longest 2,000 ft. The nearest TAF is issued for KDPA.

Ask ATIS AIAsk anything about 4LL8's weather, runways or delays, or search another airport.
MVFR
Observed 1455Z (9:55 AM CDT)live · refreshes every 60s

No weather station at this airport: showing the nearest station KDKB, 4.5 nm away.

Wind
250° 7 kt
Visibility
10+ sm
Ceiling
3,000 ft
Altimeter
30.10"
Temp / Dew
62°F / 17°C
dew 54°F / 12°C

Wind from the west-southwest (250°) at 7 kt, visibility 10+ statute miles, overcast at 3,000 ft, temperature 17°C (62°F), altimeter 30.10 inHg. Conditions are Marginal VFR (MVFR), ceiling 3,000 ft.

Raw METAR
METAR KDKB 291455Z AUTO 25007KT 10SM OVC030 17/12 A3010 RMK AO2 T01650120

What changed at KDKB (nearest station)?

Since the 1435Z (9:35 AM CDT) report, compared automatically against the latest METAR.

No significant changes since the 1435Z (9:35 AM CDT) report, conditions are holding steady.

Current pilot readout for 4LL8

Based on the nearest station (KDKB), 4LL8 is currently MVFR with winds from 250° at 7 knots, visibility 10+ statute miles, and a 3,000 ft ceiling. Density altitude is approximately 1,000 ft (field elevation 840 ft). 4LL8 does not publish a TAF. The nearest TAF station is KDPA, about 19 nm away.

New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →

Runway wind check

Estimated head/tailwind and crosswind for each runway end from the current reported wind.

RunwayHead / TailCrosswind
NFAV2 kt tail7 kt left
S2 kt tail7 kt left

Open the crosswind calculator to try your own wind and runway numbers →

24-hour trend

Wind, ceiling and flight category over the last 24 hours.

Wind (kt)Gusts (kt)Bottom strip, flight category:VFRMVFRIFRLIFRNo report
0102115Z02Z14Z

Over the last 24 h: wind 8→7 kt, ceiling unlimited → 3,000 ft.

4LL8 weather radar

Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.

Loading…
Loading radar…

Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap

NOAA NEXRAD composite and lightning, updated about every five minutes; amber frames are HRRR model guidance, not observed radar. Not for navigation.

Pilot reports (PIREPs) within 100 NM of 4LL8

Reported by pilots in flight over the past 6 hours, via aviationweather.gov.

PIREP1503Z (10:03 AM CDT) · 61 NM N of 4LL8 · during climb · M600
Show raw report
MKE UA /OV MKE270010/TM 1503/FL065/TP M600/SK OVC029-TOPS065/RM DURC OFF RAC
MKE UAHeader: reporting station and UA: a routine pilot report.
OV MKE270010Location: fix or navaid, optionally with a radial and distance in NM.
TM 1503Reported at 15:03 UTC.
FL065Altitude: 6,500 ft MSL.
TP M600Aircraft type reporting.
SK OVC029-TOPS065Sky condition: cloud bases and tops in hundreds of feet MSL.
RM DURC OFF RACRemarks.
PIREP1455Z (9:55 AM CDT) · 90 NM E of 4LL8 · 22,000 ft MSL · M600
Show raw report
SBN UA /OV GIJ270015/TM 1455/FL220/TP M600/TB NEG
SBN UAHeader: reporting station and UA: a routine pilot report.
OV GIJ270015Location: fix or navaid, optionally with a radial and distance in NM.
TM 1455Reported at 14:55 UTC.
FL220Altitude: 22,000 ft MSL.
TP M600Aircraft type reporting.
TB NEGTurbulence: none reported.
PIREP1440Z (9:40 AM CDT) · 41 NM NW of 4LL8 · 1,400 ft MSL · H25B
Show raw report
JVL UA /OV KJVL/TM 1440/FL014/TP H25B/SK OVC014-TOPS UNKN
JVL UAHeader: reporting station and UA: a routine pilot report.
OV KJVLLocation: fix or navaid, optionally with a radial and distance in NM.
TM 1440Reported at 14:40 UTC.
FL014Altitude: 1,400 ft MSL.
TP H25BAircraft type reporting.
SK OVC014-TOPS UNKNSky condition: cloud bases and tops in hundreds of feet MSL.
PIREP1429Z (9:29 AM CDT) · 98 NM SW of 4LL8 · 39,000 ft MSL · HDJT
Show raw report
MLI UA /OV MZV/TM 1429/FL390/TP HDJT/TB NEG
MLI UAHeader: reporting station and UA: a routine pilot report.
OV MZVLocation: fix or navaid, optionally with a radial and distance in NM.
TM 1429Reported at 14:29 UTC.
FL390Altitude: 39,000 ft MSL.
TP HDJTAircraft type reporting.
TB NEGTurbulence: none reported.
PIREP1427Z (9:27 AM CDT) · 75 NM SE of 4LL8 · 27,000 ft MSL · B738
Show raw report
IKK UA /OV IKK180010/TM 1427/FL270/TP B738/TB NEG
IKK UAHeader: reporting station and UA: a routine pilot report.
OV IKK180010Location: fix or navaid, optionally with a radial and distance in NM.
TM 1427Reported at 14:27 UTC.
FL270Altitude: 27,000 ft MSL.
TP B738Aircraft type reporting.
TB NEGTurbulence: none reported.
PIREP1423Z (9:23 AM CDT) · 90 NM W of 4LL8 · 2,800 ft MSL · CRJ2
Show raw report
MLI UA /OV MLI/TM 1423/FL028/TP CRJ2/SK OVC028-TOPUKN
MLI UAHeader: reporting station and UA: a routine pilot report.
OV MLILocation: fix or navaid, optionally with a radial and distance in NM.
TM 1423Reported at 14:23 UTC.
FL028Altitude: 2,800 ft MSL.
TP CRJ2Aircraft type reporting.
SK OVC028-TOPUKNSky condition: cloud bases and tops in hundreds of feet MSL.
PIREP1421Z (9:21 AM CDT) · 3 NM SE of 4LL8 · 18,000 ft MSL · B737
occasional light chop turbulence
Show raw report
DPA UA /OV DPA286012/TM 1421/FL180/TP B737/TB OCNL LGT CHOP
DPA UAHeader: reporting station and UA: a routine pilot report.
OV DPA286012Location: fix or navaid, optionally with a radial and distance in NM.
TM 1421Reported at 14:21 UTC.
FL180Altitude: 18,000 ft MSL.
TP B737Aircraft type reporting.
TB OCNL LGT CHOPTurbulence: occasional light chop.
PIREP1416Z (9:16 AM CDT) · 69 NM N of 4LL8 · 36,000 ft MSL · A321
Show raw report
UES UA /OV BAE/TM 1416/FL360/TP A321/TB NEG
UES UAHeader: reporting station and UA: a routine pilot report.
OV BAELocation: fix or navaid, optionally with a radial and distance in NM.
TM 1416Reported at 14:16 UTC.
FL360Altitude: 36,000 ft MSL.
TP A321Aircraft type reporting.
TB NEGTurbulence: none reported.

⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.

Recent aviation weather trends at 4LL8

From ATIS Alerts' hourly weather history.

Over the past 24 hours, the nearest station KDKB reported mostly VFR across 70 observations, with 1 flight-category change. The strongest gust reached 18 kt, the lowest ceiling was 3,000 ft. Wind most often came from the S.

Last 24 hours
VFR 97%MVFR 3%
Wind avg/max: 10/16 kt
Max gust: 18 kt
Lowest ceiling: 3,000 ft
Lowest vis: -
Prevailing wind: S
Category changes: 1

Most recent change: VFR → MVFR

Last 7 days
VFR 95%MVFR 4%IFR 1%LIFR 1%
Wind avg/max: 6/14 kt
Max gust: 18 kt
Lowest ceiling: 300 ft
Lowest vis: 1.75 sm
Prevailing wind: S
Category changes: 7

Most recent change: MVFR → VFR

Wind-favored runway - past 30 days

Share of hours each runway had the most headwind. From wind reports, not ATC assignments.

N/S
100%

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Field aerial

North up

Aerial photo of Colonial Acres Airport (4LL8)
N ↑

Imagery: USGS The National Map (public domain). Something off? ✏️ Suggest an edit

Airport info

From the FAA airport record (cycle 2026-10-01) and OurAirports.

Services

Attended
Unattended
Control tower
None

Airport

Type
General aviation airport
FAA LID
4LL8
City
Sycamore
State
Illinois
Country
United States
Elevation
840 ft
Coordinates
41.9993, -88.6486
Runways
2 physical runways · 2 runway ends
Longest runway
2,000 ft
Weather reporting
Nearest station KDKB
TAF
Nearest KDPA
Time zone
America/Chicago
Sunset in
7h 45m

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Nearby airports

Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.

VFRMVFRIFRLIFRNo report

RC flying fields nearby

AMA model-aircraft club fields around this airport: live wind, crosswind & flyability on each page.

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Pilot PIREPs for Colonial Acres Airport (4LL8)

Community-submitted

Community-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.

Read recent community-submitted pilot notes for Colonial Acres Airport, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.

⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.

No Pilot PIREPs have been submitted for 4LL8 yet. Recently flew here? Help the next pilot by leaving a quick airport note.

Pilot PIREPs are community pilot notes for situational awareness only, not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.

⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

Spotted incorrect airport info? ✏️ Suggest an edit

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