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John L Coppernoll Airport

4LL3 · Stockton, IL · 930 ft elevation

Airport information

FAA LID
4LL3
Coordinates
42.3083, -89.9835
Elevation
930 ft MSL

Detailed FAA facility data isn't available for this airport.

Weather

METAR observed

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TAF forecast

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Sun & FAA night 2026-06-20

EventLocal (CDT)UTC
Morning civil twilight
Loggable night ends
04:48 AM09:48Z
Sunrise05:23 AM10:23Z
Sunset08:40 PM01:40Z
Evening civil twilight
Loggable night begins
09:15 PM02:15Z
Loggable night (§1.1)
09:15 PM → 04:48 AM
Night currency (§61.57)
09:40 PM → 04:23 AM

Plan a flight from 4LL3

Runway N/S

2,000 ft × 100 ft · TURF
N
Heading
n/a
S
Heading
n/a

Headings shown are true (magnetic variation unavailable).

Nearby navigation aids

NavAidTypeFreqRadial / Dist magnetic
PLL · PoloVOR-DME111.20r312° / 29 NM
DBQ · DubuqueVORTAC115.80r096° / 32.7 NM
RFD · RockfordVOR-DME110.80r277° / 35.2 NM

No published instrument procedures or Chart Supplement for 4LL3. VFR sectional link above.

No published services or facility detail for 4LL3.

Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open 4LL3 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator.