1
Runway
0
Frequencies
0
Procedures
0
NOTAMs
Quick Facts
ICAO
4LL3
FAA
4LL3
Elevation
930 ft MSL
Runways
1
Frequencies
0
Tower
No
Fuel
N/A
Coordinates
42.308, -89.983
Airport Information
Facility Type
AIRPORT
Elevation
930 ft MSL
Control Tower
No
Fuel Types
None listed
Coordinates
42.3083, -89.9835
Current Weather
METAR KSFY 131535Z AUTO 34014G20KT 10SM BKN041 16/04 A3006 RMK AO2 T01560039
Flight Category
VFR
Wind
340° at 14 kt G20
Visibility
10+ SM
Temperature
15.6°C
Dewpoint
3.9°C
Altimeter
1018.00 inHg
Cloud Cover
BKN
Nearest weather from KSFY (17 NM away)
Observed 2026-05-13 15:35Z
Nearby Weather Cameras
No camera at 4LL3. Showing nearest cameras.
Illinois Valley Regional
East · Camera 2 · 4 cameras total
76 NM away
4 camera angles available
See all cameras, directions, and nearby airport cameras
Sign up free to view all cameras →Runways
| ID | Length | Width | Surface | Lights |
|---|---|---|---|---|
| N/S | 2,000 ft | 100 ft | TURF | - |
Active NOTAMs
No active NOTAMs for 4LL3.
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4LL3 Operational Overview
Location & Facility
John L Coppernoll Airport (4LL3) is a airport located in Stockton, Illinois, United States. The field sits at an elevation of 930 feet above mean sea level (MSL) at coordinates 42.3083°N, 89.9835°W.
Runways
John L Coppernoll Airport has 1 runway. The longest runway (N/S) measures 2,000 feet by 100 feet with a turf surface.
Communications & Operations
John L Coppernoll Airport is a non-towered (pilot-controlled) field.
Weather Cameras
1 FAA Weather Camera is available near John L Coppernoll Airport, providing real-time visual weather conditions updated every 10 minutes. AeroCopilot integrates these cameras with AI-powered weather analysis to help pilots assess visibility and ceiling conditions before departure.
Current Conditions
The current flight category at John L Coppernoll Airport is VFR (Visual Flight Rules — good flying conditions). Weather conditions are updated in real-time from official NOAA Aviation Weather Center observations.
Frequently Asked Questions
What is 4LL3?
4LL3 is the ICAO identifier for John L Coppernoll Airport, a public-use airport located in Stockton, Illinois, United States.
How many runways does John L Coppernoll Airport have?
John L Coppernoll Airport (4LL3) has 1 runway. See the runway table above for dimensions and surface types.
What is the elevation of 4LL3?
The field elevation of John L Coppernoll Airport is 930 feet above mean sea level (MSL).
Is fuel available at 4LL3?
No fuel types are currently listed for John L Coppernoll Airport. Contact the FBO directly for availability.
What are the current weather conditions at 4LL3?
The current flight category at John L Coppernoll Airport is VFR. See the METAR section above for full decoded weather data including wind, visibility, temperature, and altimeter.
Are there active NOTAMs at 4LL3?
There are currently no active NOTAMs for John L Coppernoll Airport.
How do I access complete data for 4LL3?
Sign up for a free AeroCopilot account to access all frequencies, full NOTAM text with AI interpretation, decoded forecasts, and IFR procedure charts for John L Coppernoll Airport.
Where is John L Coppernoll Airport located?
John L Coppernoll Airport (4LL3) is located in Stockton, Illinois, United States, at an elevation of 930 ft MSL.
Does 4LL3 have weather cameras?
4LL3 does not have a direct weather camera, but there are nearby cameras within range. Sign up for AeroCopilot to view all nearby airport cameras.