WxDecoder

4S5 Weather St Thomas Municipal Airport

St Thomas, North DakotaElevation 837 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KRDR · 40 NM S · 51 min old
No ceiling, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KRDR
WIND
020@7
steady
VISIBILITY
10 SM
16.1 km
CEILING
None
no BKN/OVC layer
FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

No aviation METAR is published for this airport. The nearest National Weather Service station reports wind from 340° at 5 kt, visibility 10 SM, temperature -1C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly clear, low near 25F, 0% chance of precipitation. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing.

DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Clear 25 N 5 kt – 0%
Monday Sunny 45/31 NE 8 kt – 12%
Tuesday Slight Chance Rain And Snow 46/34 E 8 kt – 22%
Wednesday Slight Chance Light Rain then Mostly Sunny 54/31 WSW 15 kt 24 kt 22%
Thursday Mostly Sunny 52/31 W 6 kt – 3%
Friday Mostly Cloudy 50/32 NE 9 kt – 14%
Saturday Mostly Cloudy then Chance Light Rain 50/33 NE 7 kt – 25%
Sunday Partly Sunny 54 WNW 8 kt – 6%

Source: National Weather Service (office FGF). Forecast issued 0345Z.

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
1 runway
NESW1735
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

1 runway · longest 2,600 ft

17/35
Dimensions
2,600 x 50 ft
Surface
Asphalt (fair)
Edge lights
NSTD
RWY 17180°T
Displaced threshold280 ft
Traffic patternLeft
RWY 350°T
Displaced threshold70 ft
Traffic patternLeft

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
837 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2322Z 6:22 PM
Sunrise
1306Z 8:06 AM
Loggable night
2354Z (6:54 PM local) → 1234Z (7:34 AM local)
end of evening to start of morning civil twilight
Position lights required
2322Z (6:22 PM local) → 1306Z (8:06 AM local)
sunset to sunrise (91.209)
Night passenger currency
0022Z (7:22 PM local) → 1206Z (7:06 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, North Dakota. Field elevation 837 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPublicly owned
UseOpen to the public
TypeSmall airport
ManagerRYAN ALME
Manager phone701-360-7926
AttendedMAY-SEP ALL, DALGT
CHARTS & AIRSPACE
ICAO / IATA4S5
SectionalTWIN CITIES
Center (ARTCC)MINNEAPOLIS
Flight service (AFSS)GRAND FORKS
RegionNorth Dakota
CountryUnited States
Coordinates48.6264, -97.4392
Distance from city1 NM NE
SERVICES & LIGHTING
Control towerNon-towered
Field lightingSee remarks
CTAF122.900
FREQUENCIES

Communications

122.900
CTAF
CTAF

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

AIRCRAFT ACTIVITY

4S5 traffic patterns

2026-07-14 to 2026-08-01, 4 days observed · data 2026-10-23

Insufficient confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
1
AVG OPS/DAY
1.5
Activity trend over 4 days: falling, from 2 to 1 operations per dayOperations trend (4 days)

Busiest day: Tue · Busiest month: Jul

FLEET MIX
Turboprop 100%

Mostly turboprop aircraft.

TOP AIRCRAFT TYPES
›AT5T (Turboprop) · ~2 landings/mo
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

4S5 has no on-field report. Nearest reporting station: KRDR (40 NM S, VFR).

KRDR Grand Forks Air Force Base
40 NM S
VFR
KGFK Grand Forks International Airport
42 NM S
VFR
KCKN Crookston Municipal Kirkwood Field
57 NM SE
VFR
KTVF Thief River Falls Regional Airport
60 NM SE
VFR
KDVL Devils Lake Regional Airport
66 NM SW
VFR
KROX Roseau Municipal Rudy Billberg Field
70 NM E
VFR
AIRPORT REMARKS

Operational remarks

›16 FT ROAD 90 FT FM DSPLCD THLD.
›18 FT ROAD 100 FT FM THLD.
›16 FT ROAD 20 FT FM THLD.
›ACTVT LIRL RY 17/35 - 122.9.
›NSTD LIRL DUE TO FIXTURES & LCTD 25 FT FROM RWY EDGE.
›FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.
›60 FT TREE LINE 340 FT L AND R OF CNTRLN AT RWY 17 END PENETRATES 7:1 TRNSL SFC WITH A 3:1 SLOPE.
›50 FT TREE LINE 160 FT R OF CNTRLN AT RWY 35 END PENETRATES 7:1 TRNSL SFC WITH A 1:1 SLOPE.
›CFM WINTER CONDS & SN REMOVAL 701-360-7926.
›RWY 17/35; EXPECT TURBULENCE WHEN EXECUTING CROSS-WIND LNDGS DUE TO TREE LINES.
›DSPLCD THLD MKD WITH GREEN LGTS - NIGHT OPS ONLY.
›DEER AND BIRDS ON & INVOF APRT
›DSPLCD THLD MKD WITH GREEN LGTS - NIGHT OPS ONLY.
›18 FT ROAD 380 FT FM DSPLCD THLD.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗Wikipedia
↗4S5 on OurAirports
FREQUENTLY ASKED
Does 4S5 have a METAR?
No on-field METAR is issued for 4S5. This page uses the nearest reporting station as a reference.
Does 4S5 have a TAF?
No TAF is issued directly for 4S5. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at 4S5?
4S5 sits at 837 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for 4S5?
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.