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Alan B. Janssen Airport

4LL9 · Morrisonville, IL · 642 ft elevation

Airport information

FAA LID
4LL9
Coordinates
39.3437, -89.4237
Elevation
642 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
04:58 AM09:58Z
Sunrise05:31 AM10:31Z
Sunset08:28 PM01:28Z
Evening civil twilight
Loggable night begins
09:00 PM02:00Z
Loggable night (§1.1)
09:00 PM → 04:58 AM
Night currency (§61.57)
09:28 PM → 04:31 AM

Plan a flight from 4LL9

Runway E/W

1,980 ft × 75 ft · TURF
E
Heading
n/a
W
Heading
n/a

Headings shown are true (magnetic variation unavailable).

Nearby navigation aids

NavAidTypeFreqRadial / Dist magnetic
VLA · VandaliaVORTAC114.30r317° / 19.3 NM
SPI · SpinnerVORTAC112.70r159° / 32 NM
AXC · DecaturVORTAC117.20r225° / 35.3 NM

No published instrument procedures or Chart Supplement for 4LL9. VFR sectional link above.

No published services or facility detail for 4LL9.

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 4LL9 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator.