KCPS/CPS METAR & TAF St Louis Downtown Airport

Cahokia/St Louis, IllinoisElevation 413 ftSmall airport

CURRENT STATUS

VFR56 min old

No ceiling, visibility 10 SM.

FLIGHT CATEGORY

VFR

ceiling & visibility

WIND

150@5

steady

VISIBILITY

10 SM

16.1 km

CEILING

None

no BKN/OVC layer

DENSITY ALT

1,417 ft

+1,004 ft vs field

CURRENT METAR

Decoded observation

Observed 2053Z (3:53 PM local) · 56 min old

KCPS is currently VFR. Winds are from the southeast at 5 knots. Visibility is 10 statute miles. There is no ceiling.

WIND

150° at 5 kt

Steady.

VISIBILITY

10 statute miles

16.1 km, good.

CEILING & SKY

CLR

FEW and SCT layers are not ceilings.

TEMP / DEWPOINT

26°C / 7°C

79°F / 45°F. 19°C spread.

ALTIMETER

30.32 inHg

1026.8 hPa, above standard.

WEATHER & HAZARDS

No significant hazards

No precipitation or obscuration reported.

Codes in this report: CLR RMK AO2

Hover or tap any group for a plain-English explanation.

REMARKS: DECODED

AO2

automated station with a precipitation discriminator (can tell rain from snow)

SLP267

sea-level pressure 1026.7 hPa

T02610072

precise temperature 26.1°C, dew point 7.2°C

56021

3-hour pressure tendency: falling then steady (2.1 hPa change)

station needs maintenance

TERMINAL AERODROME FORECAST

TAF timeline

Issued 1720Z (12:20 PM local) · valid to 1800Z (1:00 PM local)

KCPS forecast starts VFR at 18Z. Conditions are roughly steady over the period.

VFR

1800Z1:00 PM2248Z5:48 PM0336Z10:36 PM0824Z3:24 AM1312Z8:12 AM1800Z1:00 PM

Codes in this report: P6SM SCT

Tap any group to decode it.

FAA: no delays reported at CPS.

Source: FAA System Operations (ASWS). Operational status only; verify with official FAA sources and NOTAMs.

SUGGESTED RISK · TRAINING USE

Suggested risk level: Low

›No significant weather concerns in the current report.

A suggested risk level for training and situational awareness only, not a go/no-go authority. Verify with official sources and apply your personal minimums.

FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

Current aviation conditions show flight category VFR, wind from 150° at 5 kt, visibility 10 SM, ceiling none. Forecast suggests this afternoon partly sunny, high near 80F, low near 50F, 1% chance of precipitation. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing.

Day	Conditions	Temp F	Wind	Gusts	Precip
This Afternoon	Partly Sunny	80/50	SE 3 kt	–	1%
Monday	Partly Sunny	77/48	S 4 kt	–	2%
Tuesday	Mostly Cloudy	76/50	S 6 kt	–	0%
Wednesday	Sunny	80/53	S 7 kt	–	0%
Thursday	Sunny	85/54	S 6 kt	–	2%
Friday	Mostly Sunny	82/56	S 6 kt	–	12%
Saturday	Chance Rain Showers	76/57	S 7 kt	–	72%

Source: National Weather Service (office LSX). Forecast issued 2149Z.

Radar

Radar data: NOAA/NWS MRMS composite reflectivity. For situational awareness only, not a substitute for an official weather briefing.

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RUNWAYS & WIND

3 runways · crosswind ranking

ON-FIELD METAR

READING THE BARB · SWIPE FOR MORE →

Calm

5 kt

10 kt

15 kt

20 kt

25 kt

30 kt

35 kt

40 kt

45 kt

50 kt

65 kt

75 kt

100 kt

105 kt

Half feather = 5 kt, full = 10 kt, filled pennant = 50 kt; add them up. The staff points the direction the wind blows from.

WIND USED

150° at 5 kt

Components computed from the current on-field METAR wind.

RECOMMENDED

RWY 12L4 kt headwind · 2 kt crosswind

RUNWAYS BY WIND · best end

12L

HEAD

4 kt

CROSS

2 kt R

BEST

12R

HEAD

4 kt

CROSS

2 kt R

HEAD

1 kt

CROSS

5 kt L

HEAD

1 kt tail

CROSS

5 kt R

30R

HEAD

4 kt tail

CROSS

2 kt L

30L

HEAD

4 kt tail

CROSS

2 kt L

Components are estimates from the current METAR wind and runway heading. Verify with the Chart Supplement and NOTAMs.

RUNWAYS

Runway detail & declared distances

3 runways · longest 7,002 ft

05/23

Dimensions

2,799 x 75 ft

Surface

Asphalt (fair)

Edge lights

MED

RWY 0547°T

Landing length (LDA)2,799 ft

TORA / TODA / ASDA2,799 / 2,799 / 2,799 ft

RWY 23227°T

Landing length (LDA)2,799 ft

TORA / TODA / ASDA2,799 / 2,799 / 2,799 ft

12L/30R

Dimensions

5,301 x 75 ft

Surface

Concrete (fair)

Edge lights

MED

RWY 12L122°T

Landing length (LDA)5,300 ft

TORA / TODA / ASDA5,300 / 5,300 / 5,300 ft

REILYes

RWY 30R302°T

Landing length (LDA)5,300 ft

TORA / TODA / ASDA5,300 / 5,300 / 5,300 ft

REILYes

Traffic patternRight

12R/30L

Dimensions

7,002 x 150 ft

Surface

Asphalt (excellent)

Edge lights

HIGH

RWY 12R122°T

Landing length (LDA)7,002 ft

TORA / TODA / ASDA7,002 / 7,002 / 7,002 ft

REILYes

VGSIPAPI (P4L)

Traffic patternRight

RWY 30L302°T

Landing length (LDA)7,002 ft

TORA / TODA / ASDA7,002 / 7,002 / 7,002 ft

ILSILS

Approach lightsMALSR

VGSIPAPI (P4L)

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

FIELD CONDITIONS

Performance & density altitude

Density altitude

1,417 ft

Pressure altitude

13 ft

Field elevation

413 ft MSL

Temperature

26°C (79°F)

Dewpoint

7°C (45°F)

Altimeter

30.32 inHg

Density altitude estimates how the aircraft performs versus standard atmosphere. Higher density altitude reduces climb performance and increases takeoff distance.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset

2309Z 6:09 PM

Sunrise

1220Z 7:20 AM

Loggable night

2336Z (6:36 PM local) → 1153Z (6:53 AM local)

end of evening to start of morning civil twilight

Position lights required

2309Z (6:09 PM local) → 1220Z (7:20 AM local)

sunset to sunrise (91.209)

Night passenger currency

0009Z (7:09 PM local) → 1120Z (6:20 AM local)

1 hr after sunset to 1 hr before sunrise (61.57(b))

FAA definitions, shown in Zulu with airport-local time. Verify for your operation.

AIRPORT INFORMATION

Facility & services

St Louis Downtown Airport is in Cahokia/St Louis, Illinois. Field elevation 413 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT

OwnershipPublicly owned

UseOpen to the public

TypeSmall airport

ManagerSANDRA SHORE

Manager phone618-337-6060

AttendedContinuous (24 hours)

CHARTS & AIRSPACE

ICAO / IATAKCPS / CPS

SectionalST LOUIS

Center (ARTCC)KANSAS CITY

Flight service (AFSS)SAINT LOUIS

RegionIllinois

CountryUnited States

Coordinates38.5707, -90.1562

Distance from city1 NM E

SERVICES & LIGHTING

Fuel100LL · Jet A

Control towerTowered

Field lightingSee remarks

BeaconSunset to sunrise · White-green (lighted land airport)

CTAF119.925

UNICOM122.950

FREQUENCIES

Communications

123.7

APP/DEP

A/D

121.45

ATIS

121.8

CLNC DEL

CLD

119.925

CTAF

121.8

GND

119.925

DOWNTOWN TWR

TWR

122.95

UNICOM

UNIC

122.950

UNICOM

Not all tower/ground/approach frequencies are in our datasets. Verify with the FAA Chart Supplement.

AIRCRAFT ACTIVITY

KCPS traffic patterns

2026-06-12 to 2026-10-23, 62 days observed · data 2026-10-23

High confidence

TRAFFIC VOLUME (30-DAY)

AVG LANDINGS/DAY

56.1

AVG OPS/DAY

Operations trend (18 days)

Busiest day: Fri · Busiest month: Jun

FLEET MIX

Unknown 42%Piston single 34%Jet 8%Helicopter 8%Twin 4%Turboprop 3%Airliner 2%

Fleet composition unclear from available data.

TOP AIRCRAFT TYPES

›DV20 (Unknown) · ~111 landings/mo

›P28A (Piston single) · ~110 landings/mo

›C172 (Piston single) · ~51 landings/mo

›EV97 (Unknown) · ~27 landings/mo

›ECHO (Unknown) · ~25 landings/mo

LIKELY BASED AIRCRAFT

Low-confidence estimate

Aircraft likely based near this airport (estimate), mostly aircraft of unknown type.

›DV20 (Unknown)

›P28A (Piston single)

›C172 (Piston single)

›PA44 (Twin)

›ECHO (Unknown)

This is an estimate based on repeated flight patterns, not registration data. Do not rely on it to identify specific aircraft or owners.

Data limitations (4)

›ADS-B coverage is incomplete; counts are an observed lower bound, not official totals.

›Some aircraft do not transmit usable ADS-B and are not counted.

›Aircraft types and based estimates are inferred and may be wrong.

›This is not official ATC, FAA, or airport data.

NEARBY AIRPORTS

Weather reference stations

Current flight category at nearby reporting stations.

KSTL St. Louis Lambert International Airport

15 NM NW

VFR

KBLV Scott AFB/Midamerica Airport

15 NM E

VFR

KALN St Louis Regional Airport

20 NM N

VFR

KSUS Spirit of St Louis Airport

24 NM W

VFR

KSAR Sparta Community Airport - Hunter Field

33 NM SE

VFR

KENL Centralia Municipal Airport

50 NM E

VFR

AIRPORT REMARKS

Operational remarks

›SFC MARKINGS FADED.

›WATERFOWL ON & INVOF ARPT.

›RWY 12L/30R NOT AVBL FOR PART 121/PART 380 OPS WITH SKED PAX CARRYING OPS MORE THAN 9 PAX SEATS AND NON-SKED PAX CARRYING OPS MORE THAN 30 PAX SEATS. NO PART 121/PART 380 OPS EXC FOR TAX.

›RWY 05/23 NOT AVBL FOR PART 121/PART 380 OPS WITH SKED PAX CARRYING OPS MORE THAN 9 PAX SEATS AND NON-SKED PAX CARRYING OPS MORE THAN 30 PAX SEATS. NO PART 121/PART 380 OPS EXC FOR TAX.

›CLSD TO SKED ACR OPS GTR THAN 9 PSGR SEATS. UNSKED ACR OPS GTR THAN 30 PSGR SEATS RQR 12 HR PPR.

›SFC MARKINGS FADED.

›SFC CONDS NOT MNTD 2100-0700 LCL.

›ALL TWYS EXCP TWY B4 PPR ACFT OVER 120000 LBS.

›PCR VALUE: 400/F/D/X/T

›200 WITH PPR.

›BE ALERT FOR STUDENT TRNG & HEL OPS.

›ACTVT MALSR RWY 30L WHEN ATCT CLSD; REIL RWY 30R - CTAF. HIRL RWY 12R/30L PRESET MED INTST WHEN ATCT CLSD. MIRL RWY 12L & 30R NOT AVBL WHEN ATCT CLSD. PAPI RWY 12R & 30L OPR CONSLY.

›W.B.C. GROSS WT (2S) 160.

OFFICIAL LINKS & SOURCES

↗Official METAR on AviationWeather.gov

↗Search NOTAMs (official FAA NOTAM Search)

↗Wikipedia

↗KCPS on OurAirports

FREQUENTLY ASKED

Does KCPS have a METAR?

Yes. KCPS has a current METAR observation, decoded into plain English on this page.

Does KCPS have a TAF?

Yes, a TAF is issued for KCPS; the decoded forecast timeline is shown above.

What is the field elevation at KCPS?

KCPS sits at 413 ft MSL, which factors into the density-altitude estimate on this page.

Is this an official preflight weather briefing for KCPS?

No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.

This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.