1
Runway
0
Frequencies
0
Procedures
0
NOTAMs
Quick Facts
FAA
81LL
Elevation
840 ft MSL
Runways
1
Frequencies
0
Tower
No
Fuel
N/A
Coordinates
41.569, -89.174
Airport Information
Facility Type
AIRPORT
Elevation
840 ft MSL
Control Tower
No
Fuel Types
None listed
ARTCC
CHICAGO
Coordinates
41.5692, -89.1737
Ownership
Private
Hours of Operation
Current Weather
METAR KVYS 131720Z AUTO 32013G20KT 10SM BKN050 BKN065 18/03 A3003 RMK AO2
Flight Category
VFR
Wind
320° at 13 kt G20
Visibility
10+ SM
Temperature
18°C
Dewpoint
3°C
Altimeter
1017.00 inHg
Cloud Cover
BKN
Nearest weather from KVYS (13 NM away)
Observed 2026-05-13 17:20Z
Nearby Weather Cameras
No camera at 81LL. Showing nearest cameras.
Illinois Valley Regional
East · Camera 2 · 4 cameras total
13 NM away
Lake in the Hills
West · Camera 3 · 4 cameras total
64 NM away
8 camera angles available
See all cameras, directions, and nearby airport cameras
Sign up free to view all cameras →Runways
| ID | Length | Width | Surface | Lights |
|---|---|---|---|---|
| NW/SE | 1,600 ft | 70 ft | TURF | - |
Active NOTAMs
No active NOTAMs for 81LL.
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81LL Operational Overview
Location & Facility
OTTERBACH FARM (81LL) is a privately owned airport restricted to private use located in MENDOTA, Illinois, United States. The field sits at an elevation of 840 feet above mean sea level (MSL) at coordinates 41.5692°N, 89.1737°W.
Runways
OTTERBACH FARM has 1 runway. The longest runway (NW/SE) measures 1,600 feet by 70 feet with a turf surface.
Communications & Operations
OTTERBACH FARM is a non-towered (pilot-controlled) field.
Weather Cameras
2 FAA Weather Cameras are available near OTTERBACH FARM, 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 OTTERBACH FARM 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 81LL?
81LL is the ICAO identifier for OTTERBACH FARM, a public-use airport located in MENDOTA, Illinois, United States.
How many runways does OTTERBACH FARM have?
OTTERBACH FARM (81LL) has 1 runway. See the runway table above for dimensions and surface types.
What is the elevation of 81LL?
The field elevation of OTTERBACH FARM is 840 feet above mean sea level (MSL).
Is fuel available at 81LL?
No fuel types are currently listed for OTTERBACH FARM. Contact the FBO directly for availability.
What are the current weather conditions at 81LL?
The current flight category at OTTERBACH FARM is VFR. See the METAR section above for full decoded weather data including wind, visibility, temperature, and altimeter.
Are there active NOTAMs at 81LL?
There are currently no active NOTAMs for OTTERBACH FARM.
How do I access complete data for 81LL?
Sign up for a free AeroCopilot account to access all frequencies, full NOTAM text with AI interpretation, decoded forecasts, and IFR procedure charts for OTTERBACH FARM.
Where is OTTERBACH FARM located?
OTTERBACH FARM (81LL) is located in MENDOTA, Illinois, United States, at an elevation of 840 ft MSL.
Does 81LL have weather cameras?
81LL does not have a direct weather camera, but there are nearby cameras within range. Sign up for AeroCopilot to view all nearby airport cameras.