Monmouth Municipal Airport
C66 · Monmouth, IL · Non-towered · Print kneeboard
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Weather
METAR observed
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TAF forecast
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Sun & FAA night2026-08-04 · night begins 08:46 PM
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:31 AM | 10:31Z |
| Sunrise | 06:01 AM | 11:01Z |
| Sunset | 08:15 PM | 01:15Z |
| Evening civil twilight Loggable night begins | 08:46 PM | 01:46Z |
Plan a flight from C66
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Advisories
NOTAMs
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Pilot reports
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Airspace hazards
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Runways
RWY 20LEFT traffic
- Heading
- 200° mag · 203° true
- Dimensions
- 2,899 × 60 ft
- TPA
- 1,800 ft MSL (≈1,000 AGL) · standard
- Surface
- ASPH-G
- CTAF
- 122.8
Enter the left downwind (heading 020°) on the 45° at 1,800 ft MSL (≈1,000 AGL).
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: schematic (headings + lengths)
| Runway | Length | Your margin |
|---|---|---|
| 02/20 | 2,899 ft |
Prefer one flat page? Full runway details for C66 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the C66 kneeboard →
Comms & NavAids
Communication frequencies
Before taxi
Taxi & takeoff
Departure & arrival
“Quad City”Also
ATC assigns the exact frequency (in your clearance or on handoff) — which one depends on your SID (departing) or STAR (arriving).
By procedure & sector (2 frequencies)
| Frequency | Used by |
|---|---|
| 257.8 | APCH/P DEP/P |
| 370.95 | BURLINGTON RCAG (LOW) |
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
BRL 115.55 · MZV 114.40
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| BRL · Burlington | VOR/DME | 115.55 · 102Y | Low | r042° / 18.2 NM |
| MZV · Moline | VOR/DME | 114.40 · 91X | Low | r174° / 23.5 NM |
Prefer one flat list? All C66 frequencies →
Charts & procedures
Airport info
Airport information
- FAA LID
- C66
- Coordinates
- 40.9297, -90.6311
- Elevation
- 753 ft MSL
- Magnetic variation
- 3E
- Sectional chart
- CHICAGO
- Airport use
- Public
- Control tower
- No
- ARTCC
- CHICAGO (ZAU)
- Flight service (FSS)
- KANKAKEE · 122.2 · 1-800-WX-BRIEF
- NOTAM facility
- IKK
- Attendance
- TUE-SUN 0800-1630
- Beacon
- white-green (SS-SR)
- Segmented circle
- Yes
- Wind indicator
- lighted
- Activated
- 1940/04
- Distance from city
- 2 N
Night operations
- Airport lighting
- SEE RMK
- Rotating beacon
- white-green · SS-SR
- Pilot-controlled lighting
- ACTVT PAPI RWY 03 & 21; MIRL RWY 03/21 PRESET LOW INTST, TO INCR INTST & ACTVT - CTAF. on 122.8 — Chart Supplement ↗
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are under Sun & FAA night in the Weather section.
Services fuel · repairs · oxygen · attendance
- Fuel available
- 100LL, MOGAS
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
- Parking
- tiedowns, hangars
Ownership & management 2 contacts
Remarks FAA · 5 notes
General
- FOR CD CTC CHICAGO ARTCC AT 630-906-8921.
Runways
- SEASONAL CROPS IN PART 77 SFC; 200 FT FROM RWY END 61 FT L.
Lighting
- ACTVT PAPI RWY 03 & 21; MIRL RWY 03/21 PRESET LOW INTST, TO INCR INTST & ACTVT - CTAF.
Fuel
- 24 HR SELF SERVE FUEL
Contact
- EMAIL ADDRESS: ANNETTE.STLEDGER@CITYOFMONMOUTHIL.GOV
Nearby airports
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Also nearby: 36IS Gillen Airport (5 NM) · IL65 M.A.M Trail Airport (private) (6 NM) · 60IL Beulah Land Farm Airport (private) (10 NM) · 3IS2 Earp Airport (11 NM) · IL01 Wolford's Airport (private) (12 NM)
About C66
Monmouth Municipal Airport (C66) is an airport in Monmouth, IL, at 753 ft MSL. It has 1 runway, the longest 2,899 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for C66, refreshed from the Aviation Weather Center and FAA NASR.
Does C66 have a control tower?
No. Monmouth Municipal Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at C66?
Monmouth Municipal Airport has 1 runway; the longest is 2,899 ft. See the Runways section for headings, surface, and lighting.
Where is C66?
Monmouth Municipal Airport is in Monmouth, IL, at an elevation of 753 ft MSL. Coordinates: 40.9297, -90.6311.
Fly out of C66 often?
Save C66 as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.
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 C66 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.