WxDecoder

CYQS/YQS Weather St Thomas Municipal Airport

St Thomas, OntarioElevation 778 ftMedium airport
OFF-FIELD REFERENCE
Nearest report: CYXU · 16 NM N · 58 min old
Ceiling 5,000 ft, visibility 15 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · CYXU
WIND
360@7
steady
VISIBILITY
15 SM
24.1 km
CEILING
5,000 ft
lowest BKN/OVC

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RUNWAYS & WIND
3 runways
NESW032109271533
WIND
No on-field weather data
No reporting weather station on the field, so wind components cannot be computed. See nearby stations below.
RUNWAYS

Runway detail & declared distances

3 runways · longest 5,013 ft

03/21
Dimensions
2,640 x 75 ft
Surface
Asphalt
RWY 03
RWY 21
09/27
Dimensions
5,050 x 100 ft
Surface
Asphalt
RWY 09
RWY 27
15/33
Dimensions
2,640 x 75 ft
Surface
Asphalt
RWY 15
RWY 33

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

FIELD CONDITIONS

Field elevation

Field elevation
778 ft MSL

Density and pressure altitude need a current temperature and altimeter from the METAR.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2225Z 6:25 PM
Sunrise
1151Z 7:51 AM
Loggable night
2254Z (6:54 PM local) → 1122Z (7:22 AM local)
end of evening to start of morning civil twilight
Position lights required
2225Z (6:25 PM local) → 1151Z (7:51 AM local)
sunset to sunrise (91.209)
Night passenger currency
2325Z (7:25 PM local) → 1051Z (6:51 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 Thomas Municipal Airport is in St Thomas, Ontario. Field elevation 778 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPublicly owned
UseOpen to the public
TypeMedium airport
CHARTS & AIRSPACE
ICAO / IATACYQS / YQS
Center (ARTCC)TORONTO
Flight service (AFSS)LONDON FIC
RegionOntario
CountryCanada
Coordinates42.7700, -81.1108
Distance from city4 NM E
SERVICES & LIGHTING
Control towerNon-towered
FREQUENCIES

Communications

135.3
TORONTO CNTR
CNTR
122.7
ATF/UNICOM
UNIC

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

AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

CYQS has no on-field report. Nearest reporting station: CYXU (16 NM N, VFR).

CYXU London International Airport
16 NM N
VFR
CYCK Chatham Kent Airport
51 NM SW
VFR
CYKF Region of Waterloo International Airport
52 NM NE
VFR
CYZR Chris Hadfield Airport
54 NM W
VFR
CYHM John C. Munro Hamilton International Airport
57 NM NE
VFR
KERI Erie International Tom Ridge Field
59 NM SE
VFR
OFFICIAL LINKS & SOURCES
↗Official METAR on AviationWeather.gov
↗Wikipedia
↗CYQS on OurAirports
FREQUENTLY ASKED
Does CYQS have a METAR?
No on-field METAR is issued for CYQS. This page uses the nearest reporting station as a reference.
Does CYQS have a TAF?
No TAF is issued directly for CYQS. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at CYQS?
CYQS sits at 778 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for CYQS?
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.