ATIS Alerts

Troy Airport (K57S) Area Aviation Weather & Runway Winds

Aviation weather near Troy Airport in Troy, MT, decoded from the nearest reporting station (KSZT) — conditions, runway crosswinds, and free Telegram airport alerts.

Troy Airport (K57S) is a general aviation airport serving pilots in and around Troy, MT at 2,017 ft. K57S has no weather station of its own — conditions here are decoded from KSZT, about 28 nm away, the nearest reporting station, and local conditions can differ. Its 2 runways (14, 32) — longest 3,570 ft — are checked against the current wind in the crosswind table below. CTAF is 122.9. Track it in the ATIS Alerts Telegram bot to get alerts read from KSZT, the station this page is based on.

VFR
Observed 0435Z (10:35 PM MDT)live · refreshes every 60s

No weather station at this airport — showing the nearest station KSZT, 28.3 nm away.

Wind
250° 3 kt
Visibility
10+ sm
Ceiling
Unlimited
Altimeter
29.89"
Temp / Dew
20°C / 68°F
dew 7°C

Wind from the west-southwest (250°) at 3 kt, visibility 10+ statute miles, no cloud data, temperature 20°C (68°F), altimeter 29.89 inHg. Conditions are Visual Flight Rules (VFR).

Raw METAR
METAR KSZT 290435Z AUTO 25003KT 10SM CLR 20/07 A2989 RMK AO2

What changed at KSZT (nearest station)?

Since the 0415Z (10:15 PM MDT) report — compared automatically against the latest METAR.

No significant changes since the 0415Z report — conditions are holding steady.

This is exactly what ATIS Alerts watches for you — get a Telegram message when K57S's weather changes, free →

Current pilot readout for K57S

Based on the nearest station (KSZT), K57S is currently VFR with winds from 250° at 3 knots, visibility 10+ statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 14, about 3 knots. Density altitude is approximately 3,150 ft (field elevation 2,017 ft). K57S does not publish a TAF — the nearest TAF station is KCOE, about 56 nm away.

⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →

Get K57S weather alerts in Telegram

Stop refreshing aviation weather manually. Track K57S in ATIS Alerts and get notified when a new METAR changes the picture — a category drop, or wind and ceiling moving toward your minimums.

Track K57S free on Telegram

Runway wind check

Estimated head/tailwind and crosswind for each runway end from the current reported wind.

Use this section to quickly compare current wind alignment across available runways at K57S. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.

RunwayHead / TailCrosswind
14FAV0 kt head3 kt right
320 kt head3 kt left

Open the crosswind calculator — try your own wind and runway numbers →

24-hour trend

Wind, ceiling and flight category over the last 24 hours.

Wind (kt)Gusts (kt)Bottom strip — flight category:VFRMVFRIFRLIFRNo report
0102004Z16Z04Z

Over the last 24 h: wind 03 kt, ceiling unlimitedunlimited.

K57S weather radar

Live NEXRAD + lightning, with a 4-hour future-radar forecast — drag to pan, tap ⚡ to toggle lightning.

Live weather radar around Troy Airport in Troy, MT: the NOAA/NWS NEXRAD composite updates about every five minutes, with NOAA lightning strike density overlaid. The loop plays the past 50 minutes, then continues into a future-radar forecast (+1 to +4 hours, NOAA HRRR model) so you can see where precipitation around K57S is headed.

Loading…
Loading radar…

Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © OpenStreetMap © CARTO

Forecast frames (amber label) are HRRR model guidance, not observed radar. Lightning strike density appears as a blue-white glow when strikes are detected in view. Radar and lightning coverage are limited in parts of Alaska, Hawaii, and offshore areas. Not for navigation.

Pilot reports (PIREPs) within 100 NM of K57S

Reported by pilots in flight over the past 6 hours — via aviationweather.gov.

PIREP0402Z (10:02 PM MDT) · 79 NM SE of K57S · 36,000 ft MSL · B739
int light chop turbulence
Show raw report
MLP UA /OV MLP080035/TM 0402/FL360/TP B739/TB INT LGT CHOP/RM /ZSE
MLP UAHeader — reporting station and UA: a routine pilot report.
OV MLP080035Location — fix or navaid, optionally with a radial and distance in NM.
TM 0402Reported at 04:02 UTC.
FL360Altitude: 36,000 ft MSL.
TP B739Aircraft type reporting.
TB INT LGT CHOPTurbulence: int light chop.
RM /ZSERemarks.

⚠️ PIREPs are unverified pilot reports. Not for operational use — conditions change between reports.

Recent aviation weather trends at K57S

From ATIS Alerts' hourly weather history.

Over the past 24 hours, the nearest station KSZT reported mostly VFR across 71 observations, with 0 flight-category changes. The strongest gust reached 17 kt. Wind most often came from the SW.

Last 24 hours
VFR 100%
Wind avg/max: 3/10 kt
Max gust: 17 kt
Lowest ceiling:
Lowest vis:
Prevailing wind: SW
Category changes: 0
Last 7 days
VFR 99%MVFR 1%
Wind avg/max: 4/13 kt
Max gust: 21 kt
Lowest ceiling:
Lowest vis: 5 sm
Prevailing wind: SW
Category changes: 4

Most recent change: MVFRVFR

Active Runway - past 30 days
14
82%
32
18%

Get free ATIS alerts for K57S

We'll message you on Telegram when a new report moves the picture near K57S (Troy Airport) — alerts read from KSZT, the station this page uses.

Track K57S on Telegram

Free • no app to install • unsubscribe anytime

Airport facts

Reference data from the OurAirports dataset.

Type
General aviation airport
FAA LID
57S
City
Troy
State
Montana
Country
United States
Elevation
2,017 ft
Coordinates
48.4802, -115.9040
Runways
2
Longest runway
3,570 ft
Weather reporting
Nearest station KSZT
TAF
Nearest KCOE
CTAF
122.9 MHz
Time zone
America/Denver
Next sunset
22h 42m

Run a flight school, FBO, or club here? Embed K57S's live status on your website — free →

Nearby airports

Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.

RC flying fields nearby

AMA model-aircraft club fields around this airport — live wind, crosswind & flyability on each page.

All RC flying fields →

See all Montana airports →

K57S weather — frequently asked

What runways are available at K57S?+

K57S has 2 runways — 14, 32; the longest is 3,570 ft. This page computes the live crosswind for each runway end from the current wind.

Where does the weather shown for K57S come from?+

Troy Airport does not have its own weather station. Conditions shown here come from the nearest reporting station, KSZT, about 28 nm away — close enough for situational awareness, but local conditions at K57S can differ.

Does K57S have a TAF?+

No — K57S does not publish its own TAF. The nearest TAF station is KCOE, about 56 nm away.

Does K57S broadcast D-ATIS?+

No — K57S does not broadcast D-ATIS. Alerts for K57S from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR (via the nearest reporting station) instead.

Pilot PIREPs for Troy Airport (K57S)

Community-submitted

Community-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.

Read recent community-submitted pilot notes for Troy Airport, 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 K57S 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.

From the ATIS Alerts team

Why pilots use ATIS Alerts

Free aviation weather and ATIS change alerts for GA pilots, delivered on Telegram — so a change catches your eye before it catches you off guard.

  • Get pinged the moment K57S drops below VFR or a new report moves your numbers.
  • Live METAR, TAF, crosswinds, and FAA delays — one link, always current.
  • Free, no app to install, and you can track any US airport. Unsubscribe anytime.
Get free alerts for K57S

⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

Spotted incorrect airport info? ✏️ Suggest an edit

How ATIS Alerts works · All US airports · Montana airports