Monmouth Municipal
C66 · Monmouth, IL · Non-towered · Print kneeboard · Open on the map
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Weather
METAR observed
TAF forecast
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Sun & FAA night2026-09-18 · night begins 07:34 PM
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:18 AM | 11:18Z |
| Sunrise | 06:46 AM | 11:46Z |
| Sunset | 07:07 PM | 00:07Z |
| Evening civil twilight Loggable night begins | 07:34 PM | 00:34Z |
Plan a flight from C66
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
NOTAMs · Loading NOTAMs…
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Airspace hazards · Checking SIGMETs and G-AIRMETs…
Temporary flight restrictions · Checking for TFRs…
Runways
RWY 21LEFT traffic
- Heading
- 200° mag · 203° true
- Dimensions
- 2,899 × 60 ft
- TPA
- 1,800 ft MSL (≈1,000 AGL) · standard
- Surface
- Asphalt
- Lights
- 2-light PAPI (left) (3°)
- CTAF
- 122.8
Enter the left downwind (heading 020°) on the 45° at 1,800 ft MSL (≈1,000 AGL).
More details — RWY 21
- Threshold elev
- 748 ft
- Markings
- basic
- Approach obstacle
- Tree, 52 ft, 789 ft from threshold, 180 ft R of centerline — 11:1 slope to clear · penetrates the 20:1 visual approach surface
- Threshold crossing height
- 21 ft
- TDZ elevation
- 753 ft
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates
| Runway | Length | Your margin |
|---|---|---|
| 03/21 | 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 · 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 ↗
Runway lighting aids — 03: 2-light PAPI (left) · 21: 2-light PAPI (left).
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: IL65 M A M Trail (private) (6 NM) · 60IL Beulah Land Farm (private) (10 NM) · IL01 Wolford's (private) (12 NM) · 6IL6 Kingfield (private) (17 NM) · IL09 Mercer County (private) (20 NM)
About C66
Monmouth Municipal (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 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 has 1 runway; the longest is 2,899 ft. See the Runways section for headings, surface, and lighting.
Where is C66?
Monmouth Municipal is in Monmouth, IL, at an elevation of 753 ft MSL. Coordinates: 40.9297, -90.6311.
More about C66
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.
Something here wrong or out of date? Report a data problem.