St Charles County Regional Airport/Smartt Field (KSET) Aviation Weather: METAR
As of 3:54 AM CDT, Oct 28, KSET is currently IFR with winds from 030° at 3 knots, visibility 1.8 statute miles, and no ceiling reported.
Live aviation weather for St Charles County Regional Airport/Smartt Field in St Charles, MO, including METAR, flight category, wind, visibility, ceiling, altimeter and runway crosswinds.
St Charles County Regional Airport/Smartt Field (KSET) is a general aviation airport serving pilots in and around St Charles, MO at a field elevation of 437 ft. KSET reports its own METAR, decoded live on this page as flight category, wind, visibility, ceiling and altimeter. It has 2 physical runways (09/27, 18/36), the longest 3,800 ft. Automated weather is broadcast on 118.075.
Wind from the north-northeast (030°) at 3 kt, visibility 1.8 statute miles, no cloud data, temperature 10°C (50°F), altimeter 30.20 inHg. Conditions are Instrument Flight Rules (IFR).
METAR KSET 280854Z AUTO 03003KT 1 3/4SM BR CLR 10/10 A3020 RMK AO2 SLP225 T01000100 50003
What changed at KSET?
Since the 0754Z (2:54 AM CDT) report, compared automatically against the latest METAR.
- Flight category dropped from MVFR to IFR.
- Visibility dropped from 4 SM to 1.75 SM.
Current pilot readout for KSET
KSET is currently IFR with winds from 030° at 3 knots, visibility 1.8 statute miles, and no ceiling reported. the wind favors north-facing runway ends (36). Density altitude is approximately -400 ft (field elevation 437 ft). KSET does not publish a TAF. The nearest TAF station is KSTL, about 11 nm away.
KSET by the numbers
What the long-run records say about flying here, computed for this airport alone.
KSET reported VFR in 82% of daylight observations over 20 years, about 274 flyable days a year. June is the most reliable month and December the least, with IFR or worse 10% of the time. When conditions drop it is usually a mix of low ceilings (under 1,000 ft 3% of hours) and low visibility (under 3 miles 4%).
Over 20 years of hourly winds, runway 09 had the best headwind 29% of the time, runway 27 26%, and winds were calm 21% of hours. Winds most often blow from the east. Crosswind on the best available runway topped 15 kt in under 1% of hours.
Thunderstorms were reported on about 50 days a year. 51% of storm hours fall in May, June and July, peaking in June when storms were in the air 2% of the time.
Snow fell on about 19 days a year and freezing rain or drizzle on 3. From December to February KSET was IFR or worse 10% of the time, against 3% from June to August.
Field elevation is 437 ft, but on a median summer afternoon the air performs like 2,230 ft, 1,793 ft higher. Plan for a longer takeoff roll and a weaker climb from June to August.
Sources: hourly observations 2006 to 2025 and the per-runway wind climatology 2006 to 2025. Historical summaries, not a forecast: check the current METAR, TAF and a briefing before flight.
New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →
Runway wind check
Estimated head/tailwind and crosswind for each runway end from the current reported wind.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 36FAV | 3,800 ft | ASP | 3 kt head | 1 kt right |
| 09 | 2,000 ft | ASP | 1 kt head | 3 kt left |
| 27 | 2,000 ft | ASP | 1 kt tail | 3 kt right |
| 18 | 3,800 ft | ASP | 3 kt tail | 1 kt left |
Open the crosswind calculator to try your own wind and runway numbers →
KSET runways
2 physical runways · 4 runway ends. Each card opens the runway's intelligence page: equipment and lighting, LAHSO, frequencies, today's configuration, predicted use, history and approaches.
- Status not monitoredRunway 09/272,000 × 75 ft · ASPCurrent useno stated-runway source at KSETWind
- 09
- 1 kt headwind · 3 kt crosswind from left
- 27
- 1 kt tailwind · 3 kt crosswind from right
no active equipment NOTAM receivedView Runway Intelligence → - Status not monitoredRunway 18/363,800 × 75 ft · ASPCurrent useno stated-runway source at KSETWind
- 18
- 3 kt tailwind · 1 kt crosswind from left
- 36
- 3 kt headwind · 1 kt crosswind from right
no active equipment NOTAM receivedView Runway Intelligence →
“Current use” is what the facilitystates; wind components are arithmetic on the current METAR against TRUE headings; status reflects NOTAMs received through SWIM, the tower's TFDM record and the D-ATIS — a runway reads “Open” only with a complete NOTAM picture.
24-hour trend
Wind, ceiling and flight category over the last 24 hours.
Over the last 23 h: wind 0→3 kt, ceiling unlimited → unlimited.
KSET weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap
NOAA NEXRAD composite and lightning, updated about every five minutes; amber frames are HRRR model guidance, not observed radar. Not for navigation.
Recent aviation weather trends at KSET
From ATIS Alerts' hourly weather history.
Over the past 24 hours, KSET reported mostly VFR across 24 observations, with 2 flight-category changes. The lowest ceiling was 12,000 ft. Wind most often came from the E.
Most recent change: MVFR → IFR
Most recent change: VFR → MVFR
Share of hours each runway had the most headwind. From wind reports, not ATC assignments.
- 09
- 32%
- 18
- 28%
- 36
- 24%
- 27
- 16%
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Live crosswind meter
Measured by KSET's own weather station.
Wind is 29° off runway 36, the end with the most headwind right now.
Asphalt · 3,800 ft. Headings from FAA runway data. Not for navigation.
Field aerial
North up
Runway 09/27, 18/36 drawn from FAA threshold coordinates.
Imagery: USGS The National Map (public domain). Something off? ✏️ Suggest an edit
Airport info
From the FAA airport record (cycle 2026-10-01) and OurAirports.
Services
- Fuel
- 100LL
- Attended
- Nov-Mar Daily 0730-1630 local; Apr-Oct Daily 0730-1630 DUSK local
- Repairs
- Airframe & engine, major
- Transient parking
- Tie-downs · Hangars
- Landing fee
- No
- Other services
- Crop dusting · Charter · Flight instruction · Aircraft rental
- Control tower
- None
- Wind indicator
- Lighted
Airport
- Type
- General aviation airport
- ICAO
- KSET
- FAA LID
- SET
- City
- St Charles
- State
- Missouri
- Country
- United States
- Elevation
- 437 ft
- Coordinates
- 38.9297, -90.4300
- Runways
- 2 physical runways · 4 runway ends
- Longest runway
- 3,800 ft
- Weather reporting
- Reports METAR
- TAF
- Nearest KSTL
- AWOS/ASOS
- 118.075 MHz
- CTAF
- 122.7 MHz
- Time zone
- America/Chicago
- Next sunset
- 14h 7m
Run a flight school, FBO, or club here? Embed KSET's live status on your website, free →
Nearby airports
Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.
Within 25 NM
10 airports+4 more within 25 NM
25–50 NM
6 airports50–100 NM
8 airports+2 more within 100 NM
RC flying fields nearby
AMA model-aircraft club fields around this airport: live wind, crosswind & flyability on each page.
- Phantom Flyers RC Club 1 , Saint Charles, MO · 6 mi
- Mississippi Valley Soaring Association - Emerald View Farm , O'Fallon, MO · 15 mi
- Mississippi Valley Soaring Association - Foley , Foley, MO · 18 mi
Historical Flying Weather at KSET
2006–2025 · ATIS Alerts Flying Weather Index
Based on historical observations from 2006–2025, KSET reported VFR conditions during about 82.1% of valid daylight observations, with an estimated 274 VFR flying days a year. June had the most VFR weather; December had the most instrument conditions. Surface winds averaged 6.7 kt, calm 15.2% of the time.
Full historical breakdown
Flight category by month
| Month | VFR % | MVFR % | IFR % | LIFR % |
|---|---|---|---|---|
| Jan | 67.9 | 20.9 | 7.4 | 3.9 |
| Feb | 74.1 | 17.1 | 6.6 | 2.2 |
| Mar | 77.6 | 16.6 | 4.2 | 1.6 |
| Apr | 85.3 | 11.1 | 3.0 | 0.7 |
| May | 86.2 | 10.2 | 2.7 | 0.9 |
| Jun | 91.6 | 6.0 | 1.8 | 0.6 |
| Jul | 90.0 | 6.8 | 2.2 | 1.1 |
| Aug | 88.1 | 7.9 | 2.4 | 1.5 |
| Sep | 84.2 | 9.4 | 3.4 | 3.1 |
| Oct | 81.3 | 12.1 | 4.3 | 2.3 |
| Nov | 77.8 | 14.5 | 4.8 | 2.9 |
| Dec | 65.9 | 23.8 | 6.9 | 3.4 |
Average wind by month
| Month | Mean wind (kt) |
|---|---|
| Jan | 7.7 kt |
| Feb | 7.9 kt |
| Mar | 8.5 kt |
| Apr | 8.7 kt |
| May | 7.0 kt |
| Jun | 5.9 kt |
| Jul | 4.5 kt |
| Aug | 4.3 kt |
| Sep | 4.8 kt |
| Oct | 6.5 kt |
| Nov | 7.2 kt |
| Dec | 7.4 kt |
Historical summary of past observations: not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.
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SET's real runway layout on the back, elevation and tower frequency on the front. Add your tail number on the sleeve.
Pilot PIREPs for St Charles County Regional Airport/Smartt Field (KSET)
Community-submittedCommunity-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.
Read recent community-submitted pilot notes for St Charles County Regional Airport/Smartt Field, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.
⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.
No Pilot PIREPs have been submitted for KSET yet. Recently flew here? Help the next pilot by leaving a quick airport note.
Pilot PIREPs are community pilot notes for situational awareness only, not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.
⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
No D-ATIS at this airport, showing METAR.
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