KCPS — St Louis Downtown
Cahokia/St Louis, IL · field elevation 413 ft · Class D airspace · ATCT
KCPS current weather
VFR ceiling above 3,000 ft and visibility better than 5 statute miles
METAR KCPS 111153Z 20004KT 10SM CLR 26/22 A2998 RMK AO2 SLP146 6//// 7//// T02610222 10267 20250 53003 PNO $
- Wind
- from 200° at 4 kt
- Visibility
- 10 statute miles
- Sky
- clear below 12,000 ft
- Temperature
- 26 °C / dewpoint 22 °C
- Altimeter
- 29.98 inHg
- Density altitude
- 1,755 ft · pressure altitude 353 ft
- Observed
- 19 minutes ago
Wind on each runway
Wind 200° at 4 kt. Positive is a headwind; the crosswind side is the one you hold into.
| Runway | Head / tail | Crosswind |
|---|---|---|
| 23 | 4 kt head | 2 kt from the left |
| 12L | 1 kt head | 4 kt from the right |
| 12R | 1 kt head | 4 kt from the right |
| 30R | 1 kt tail | 4 kt from the left |
| 30L | 1 kt tail | 4 kt from the left |
| 05 | 4 kt tail | 2 kt from the right |
48-hour trend
Eight days of observations, each readable in full — in the EFB →
Calculators: density altitude, pressure altitude, cloud base, crosswind
Forecast
MOS guidance beside this TAF, both drawn along your route — in the EFB →
TAF KCPS 111120Z 1112/1212 21007KT P6SM SCT060 FM111700 23010G18KT P6SM SCT060 FM120200 VRB04KT P6SM BKN250
Learn: reading a TAF, the weather course
Airport information
- Coordinates
- 38.57036, -90.15508
- Elevation
- 413 ft MSL
- Surface airspace
-
Class D
Two-way radio communication must be established before you enter, while the tower is open.
The same callsign rule as Class C. When the tower closes the airspace usually reverts to Class E, or to Class G where no surface area is charted — the Chart Supplement entry says which, and the hours are on the sectional. A surface area normally extends to 2,500 ft above the field, with the ceiling charted in a dashed blue box as a number in hundreds of feet.
- Sunrise / sunset
- 1111Z / 0100Z
- Tower hours
- 0630-2200
- Magnetic variation
- 0° (2000)
- Fuel
- 100LL,A
- Sectional
- St Louis
- County
- St Clair, IL
Airport diagram
Everything else KCPS publishes — in the EFB →
Runways
| Runway | Length (ft) | Width (ft) | Surface | Lights |
|---|---|---|---|---|
| 12R/30L | 7,002 | 150 | ASPH | HIGH |
| 12L/30R | 5,301 | 75 | CONC | MED |
| 05/23 | 2,799 | 75 | ASPH | MED |
Frequencies
- ATIS
- 121.45
- Tower 0630-2200
- 119.925
- Ground
- 121.8
- Clearance
- 118.275
- Clearance WHEN TWR CLSD
- 121.8
- CTAF
- 119.925
- UNICOM
- 122.95
- Approach
- 123.7
Published procedures
- 6 approaches — ILS, LOC, LS, RNAV (GPS)
- 4 departures published
- 4 arrivals published
Read the approach plates georeferenced — in the EFB →
Nearby airports
- KSTL St Louis Lambert Intl15 nm
- KBLV Scott AFB/Midamerica St Louis15 nm
- KALN St Louis Rgnl20 nm
- KSUS Spirit Of St Louis24 nm
- KSET St Charles County Rgnl/Smartt Fld25 nm
- KSAR Sparta Community-Hunter Fld33 nm
Elsewhere
- Make a poster of the KCPS airport diagram or an approach plate
- Other Illinois airports
- How to read a METAR
- What VFR, MVFR, IFR and LIFR actually mean
- Live records — the strongest winds and lowest ceilings in the country right now
Weather from METAR and TAF, National Weather Service Aviation Weather Center. Airport, runway, frequency and procedure data from the FAA NASR 28-day cycle; charts from the FAA d-TPP. Advisory only — this is not a weather briefing.