WxDecoder

KSET METAR St Charles County Regional Airport/Smartt Field

St Charles, MissouriElevation 437 ftSmall airport
CURRENT STATUS
VFR48 min old
No ceiling, visibility 10 SM.
FLIGHT CATEGORY
VFR
ceiling & visibility
WIND
Calm
no steady wind
VISIBILITY
10 SM
16.1 km
CEILING
None
no BKN/OVC layer
DENSITY ALT
1,328 ft
+891 ft vs field
CURRENT METAR

Decoded observation

Observed 2054Z (3:54 PM local) · 48 min old

KSET is currently VFR. Winds are calm. Visibility is 10 statute miles. There is no ceiling.

WIND
Calm
No steady wind.
VISIBILITY
10 statute miles
16.1 km, good.
CEILING & SKY
CLR
FEW and SCT layers are not ceilings.
TEMP / DEWPOINT
25°C / 7°C
77°F / 45°F. 18°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: AUTO 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)
SLP264
sea-level pressure 1026.4 hPa
T02500067
precise temperature 25.0°C, dew point 6.7°C
56020
3-hour pressure tendency: falling then steady (2.0 hPa change)
SUGGESTED RISK · TRAINING USE

Suggested risk level: Low

›No TAF available for this airport.

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 calm, visibility 10 SM, ceiling none. Forecast suggests this afternoon partly sunny, high near 79F, low near 51F, 1% chance of precipitation. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing.

DayConditionsTemp FWindGustsPrecipPilot note
This Afternoon Partly Sunny 79/51 SE 4 kt – 1%
Monday Partly Sunny 78/51 S 5 kt – 2%
Tuesday Mostly Cloudy 77/53 S 7 kt – 0%
Wednesday Mostly Sunny 81/55 S 8 kt – 1%
Thursday Sunny 85/56 S 7 kt – 3%
Friday Mostly Sunny 82/58 S 7 kt – 14%
Saturday Rain Showers Likely 76/59 S 9 kt – 68%

Source: National Weather Service (office LSX). Forecast issued 2142Z.

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
2 runways · crosswind ranking
NESW18360927CALMCALMCALMCALMCALM
WIND USED
Wind calm or variable
Crosswind ranking is unavailable until the wind has a steady direction.
Components are estimates from the current METAR wind and runway heading. Verify with the Chart Supplement and NOTAMs.
RUNWAYS

Runway detail & declared distances

2 runways · longest 3,800 ft

18/36
Dimensions
3,800 x 75 ft
Surface
Asphalt (fair)
Edge lights
MED
RWY 18181°T
REILYes
VGSIPAPI (P4L)
Traffic patternLeft
RWY 361°T
VGSIVASI (V4L)
Traffic patternLeft
09/27
Dimensions
2,000 x 75 ft
Surface
Asphalt (good)
Edge lights
MED
RWY 0991°T
Traffic patternLeft
RWY 27271°T
Traffic patternLeft

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
1,328 ft
Pressure altitude
37 ft
Field elevation
437 ft MSL
Temperature
25°C (77°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
1222Z 7:22 AM
Loggable night
2337Z (6:37 PM local) → 1155Z (6:55 AM local)
end of evening to start of morning civil twilight
Position lights required
2309Z (6:09 PM local) → 1222Z (7:22 AM local)
sunset to sunrise (91.209)
Night passenger currency
0009Z (7:09 PM local) → 1122Z (6:22 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 Charles County Regional Airport/Smartt Field is in St Charles, Missouri. Field elevation 437 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPublicly owned
UseOpen to the public
TypeSmall airport
ManagerPETER KAMBEITZ
Manager phone636-949-1893
AttendedAPR-OCT ALL, 0730–1630 DUSK
CHARTS & AIRSPACE
ICAO / IATAKSET
SectionalST LOUIS
Center (ARTCC)KANSAS CITY
Flight service (AFSS)SAINT LOUIS
RegionMissouri
CountryUnited States
Coordinates38.9297, -90.4300
Distance from city9 NM NE
SERVICES & LIGHTING
Fuel100LL
Control towerNon-towered
Field lightingSee remarks
BeaconSunset to sunrise · White-green (lighted land airport)
CTAF122.700
UNICOM122.700
FREQUENCIES

Communications

124.2
ST LOUIS APP/DEP
A/D
118.075
ASOS
ASOS
121.6
ST LOUIS CLNC DEL
CLD
122.7
CTAF
CTAF
122.700
UNICOM
UNICOM

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

AIRCRAFT ACTIVITY

KSET traffic patterns

2026-06-12 to 2026-10-23, 55 days observed · data 2026-10-23

High confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
12.2
AVG OPS/DAY
17.8
Activity trend over 16 days: rising, from 18 to 29 operations per dayOperations trend (16 days)

Busiest day: Wed · Busiest month: Oct

FLEET MIX
Piston single 74%Unknown 14%Helicopter 10%Twin 3%

Mostly small piston aircraft.

TOP AIRCRAFT TYPES
›C172 (Piston single) · ~41 landings/mo
›UNKN (Unknown) · ~6 landings/mo
›C152 (Piston single) · ~3 landings/mo
›BL8 (Piston single) · ~3 landings/mo
›C82R (Unknown) · ~2 landings/mo
LIKELY BASED AIRCRAFT
Low-confidence estimate

Aircraft likely based near this airport (estimate), mostly single-engine piston aircraft.

›C172 (Piston single)
›C152 (Piston single)
›C182 (Piston single)
›BL8 (Piston single)
›UNKN (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
11 NM S
VFR
KALN St Louis Regional Airport
18 NM E
VFR
KSUS Spirit of St Louis Airport
19 NM SW
VFR
KCPS St Louis Downtown Airport
25 NM SE
VFR
KBLV Scott AFB/Midamerica Airport
36 NM SE
VFR
KIJX Jacksonville Municipal Airport
52 NM N
VFR
AIRPORT REMARKS

Operational remarks

›THIS AIRPORT HAS BEEN SURVEYED BY THE NATIONAL GEODETIC SURVEY.
›FOR CD CTC ST LOUIS APCH AT 314-890-1017.
›RWY 36 VASI OUT OF SERVICE INDEFINITELY
›ACTVT MIRL RWY 18/36 AND RWY 09/27 & REIL RWY 18, PAPI RWY 18 - CTAF. DUSK TO DAWN ONLY.
›ARPT CONDS NOT REPORTED MON-FRI 1630L-0800L DLY, FRI 1630L THRU MON 0800L.
›HEAVY STUDENT TRNG.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗Official airport website
↗Wikipedia
↗KSET on OurAirports
FREQUENTLY ASKED
Does KSET have a METAR?
Yes. KSET has a current METAR observation, decoded into plain English on this page.
Does KSET have a TAF?
When KSET issues a TAF, its decoded forecast timeline loads live on this page; otherwise use the nearest TAF-issuing field as a planning reference.
What is the field elevation at KSET?
KSET sits at 437 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for KSET?
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.