Trenton Mercer Airport (KTTN) Aviation Weather, METAR, TAF & ATIS Alerts

Live aviation weather for Trenton Mercer Airport in Ewing Township, NJ, including METAR, TAF, flight category, wind, visibility, ceiling, altimeter, runway crosswinds, and Telegram airport alerts.

Trenton Mercer Airport (KTTN) is a regional airport serving Ewing Township, NJ at 213 ft. KTTN reports its own METAR and publishes a TAF — decoded live on this page as flight category, wind, visibility, ceiling and altimeter. Its 4 runways (06, 16, 24, 34) — longest 6,006 ft — are checked against the current wind in the crosswind table below. The official FAA airport diagram is at the bottom of the page. Track KTTN in the ATIS Alerts Telegram bot to get a message when a new METAR changes the picture — flight category, wind, or ceiling past your selected minimums.

VFR

Observed 1953Z (3:53 PM EDT)live · refreshes every 60s

Wind

290° 10 kt

gusting 20 kt

Visibility

10+ sm

Ceiling

8,500 ft

Altimeter

29.59"

Temp / Dew

28°C / 82°F

dew 17°C

Wind from the west-northwest (290°) at 10 kt, gusting 20 kt, visibility 10+ statute miles, overcast at 8,500 ft, temperature 28°C (82°F), altimeter 29.59 inHg. Conditions are Visual Flight Rules (VFR), ceiling 8,500 ft.

Raw METAR

METAR KTTN 291953Z 29010G20KT 10SM OVC085 28/17 A2959 RMK AO2 SLP012 T02780167

What changed at KTTN?

Since the 1853Z (2:53 PM EDT) report — compared automatically against the latest METAR.

Gusts began — now gusting 20 kt.

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

Current pilot readout for KTTN

KTTN is currently VFR with winds from 290° at 10 knots gusting 20, visibility 10+ statute miles, and a 8,500 ft ceiling. The strongest crosswind component is currently on runway 06, about 9 knots. Density altitude is approximately 2,200 ft (field elevation 213 ft). Review the latest TAF below for forecast changes before departure.

⚠️ 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 KTTN weather alerts in Telegram

Stop refreshing aviation weather manually. Track KTTN 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 KTTN 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 KTTN. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.

Runway	Length	Surface	Head / Tail	Crosswind
34FAV	4,800 ft	ASP	8 kt head	6 kt left (g12)
24	6,006 ft	ASP	5 kt head	9 kt right (g18)
06	6,006 ft	ASP	5 kt tail	9 kt left (g18)
16	4,800 ft	ASP	8 kt tail	6 kt right (g12)

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

Over the last 23 h: wind 10→10 kt, ceiling 3,000 ft → 8,500 ft.

KTTN weather radar

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

Live weather radar around Trenton Mercer Airport in Ewing Township, NJ: 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 KTTN 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 KTTN

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

URGENT1930Z (3:30 PM EDT) · 51 NM SW of KTTN · during descent · P46T

low-level wind shear

Show raw report

ILG UUA /OV KILG/TM 1930/FLDURD/TP P46T/RM LLWS +/-10 KT DURD RWY 01

ILG UUAHeader — reporting station and UUA: an URGENT pilot report (severe conditions, wind shear, or similar).

OV KILGLocation — fix or navaid, optionally with a radial and distance in NM.

TM 1930Reported at 19:30 UTC.

FLDURDReported during descent.

TP P46TAircraft type reporting.

RM LLWS +/-10 KT DURD RWY 01Remarks.

PIREP1923Z (3:23 PM EDT) · 91 NM SW of KTTN · 4,500 ft MSL · SR22

Show raw report

MTN UA /OV 5 N KMTN/TM 1923/FL045/TP SR22/SK OVC045

MTN UAHeader — reporting station and UA: a routine pilot report.

OV 5 N KMTNLocation — fix or navaid, optionally with a radial and distance in NM.

TM 1923Reported at 19:23 UTC.

FL045Altitude: 4,500 ft MSL.

TP SR22Aircraft type reporting.

SK OVC045Sky condition — cloud bases and tops in hundreds of feet MSL.

PIREP1919Z (3:19 PM EDT) · 88 NM NE of KTTN · 1,400 ft MSL · F900

Show raw report

ISP UA /OV UKEGE/TM 1919/FL014/TP F900/RM NO REPORTABLE FLIGHT CONDITIONS

ISP UAHeader — reporting station and UA: a routine pilot report.

OV UKEGELocation — fix or navaid, optionally with a radial and distance in NM.

TM 1919Reported at 19:19 UTC.

FL014Altitude: 1,400 ft MSL.

TP F900Aircraft type reporting.

RM NO REPORTABLE FLIGHT COND…Remarks.

PIREP1813Z (2:13 PM EDT) · 52 NM NE of KTTN · during climb · B737

Show raw report

JFK UA /OV JFK/TM 1813/FLDURC/TP B737/SK BASE030-TOP060

JFK UAHeader — reporting station and UA: a routine pilot report.

OV JFKLocation — fix or navaid, optionally with a radial and distance in NM.

TM 1813Reported at 18:13 UTC.

FLDURCReported during climb.

TP B737Aircraft type reporting.

SK BASE030-TOP060Sky condition — cloud bases and tops in hundreds of feet MSL.

PIREP1805Z (2:05 PM EDT) · 84 NM E of KTTN · 1,000 ft MSL · B738

Show raw report

ISP UA /OV ISP/TM 1805/FL010/TP B738/SK BKN010/WX 3SM -RA

ISP UAHeader — reporting station and UA: a routine pilot report.

OV ISPLocation — fix or navaid, optionally with a radial and distance in NM.

TM 1805Reported at 18:05 UTC.

FL010Altitude: 1,000 ft MSL.

TP B738Aircraft type reporting.

SK BKN010Sky condition — cloud bases and tops in hundreds of feet MSL.

WX 3SM -RAWeather and flight visibility observed.

PIREP1805Z (2:05 PM EDT) · 76 NM NW of KTTN · during descent · E145

Show raw report

AVP UA /OV AVP/TM 1805/FLDURD/TP E145/RM BASES 040 TOPS 046

AVP UAHeader — reporting station and UA: a routine pilot report.

OV AVPLocation — fix or navaid, optionally with a radial and distance in NM.

TM 1805Reported at 18:05 UTC.

FLDURDReported during descent.

TP E145Aircraft type reporting.

RM BASES 040 TOPS 046Remarks.

PIREP1751Z (1:51 PM EDT) · 49 NM NE of KTTN · 2,000 ft MSL · GLF5

Show raw report

TEB UA /OV TEB/TM 1751/FL020/TP GLF5/SK OVC

TEB UAHeader — reporting station and UA: a routine pilot report.

OV TEBLocation — fix or navaid, optionally with a radial and distance in NM.

TM 1751Reported at 17:51 UTC.

FL020Altitude: 2,000 ft MSL.

TP GLF5Aircraft type reporting.

SK OVCSky condition — cloud bases and tops in hundreds of feet MSL.

PIREP1747Z (1:47 PM EDT) · 31 NM NW of KTTN · 5,000 ft MSL · GLF4

light turbulence

Show raw report

ABE UA /OV 10 E ABE/TM 1747/FL050/TP GLF4/SK IN AND OUT LAYERS 050/TB LGT

ABE UAHeader — reporting station and UA: a routine pilot report.

OV 10 E ABELocation — fix or navaid, optionally with a radial and distance in NM.

TM 1747Reported at 17:47 UTC.

FL050Altitude: 5,000 ft MSL.

TP GLF4Aircraft type reporting.

SK IN AND OUT LAYERS 050Sky condition — cloud bases and tops in hundreds of feet MSL.

TB LGTTurbulence: light.

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

Recent aviation weather trends at KTTN

From ATIS Alerts' hourly weather history.

Over the past 24 hours, KTTN reported mostly VFR across 36 observations, with 11 flight-category changes. The strongest gust reached 22 kt, the lowest ceiling was 300 ft. Wind most often came from the W.

Last 24 hours

VFR 61%MVFR 17%IFR 11%LIFR 11%

Wind avg/max: 7/13 kt

Max gust: 22 kt

Lowest ceiling: 300 ft

Lowest vis: —

Prevailing wind: W

Category changes: 11

Most recent change: MVFR → VFR

Last 7 days

VFR 89%MVFR 4%IFR 3%LIFR 4%

Wind avg/max: 5/12 kt

Max gust: 21 kt

Lowest ceiling: 200 ft

Lowest vis: 2 sm

Prevailing wind: S

Category changes: 16

Most recent change: MVFR → VFR

Active Runway - past 30 days

24: 33%
34: 29%
06: 20%
16: 18%

TAF — Terminal Aerodrome Forecast

Issued 1917Z (3:17 PM EDT)

TAF KTTN 291917Z 2919/3018 30012KT P6SM BKN050 FM292300 30008KT P6SM VCSH BKN060 FM300500 29007KT P6SM BKN035 PROB30 3007/3010 5SM -SHRA BR OVC025 FM301500 33012G20KT P6SM BKN035

New to TAFs? How to read one →

Want forecast changes pushed to you? Start free on Telegram → TAF heads-ups are part of Premium · see what Premium includes

Get free ATIS alerts for KTTN

We'll message you on Telegram the moment a new METAR changes the picture at KTTN (Trenton Mercer Airport) — flight category, wind, or ceiling past your minimums.

Track KTTN on Telegram

Free • no app to install • unsubscribe anytime

Airport facts

Reference data from the OurAirports dataset.

Type: Regional airport
ICAO: KTTN
IATA: TTN
FAA LID: TTN
City: Ewing Township
State: New Jersey
Country: United States
Elevation: 213 ft
Coordinates: 40.2767, -74.8135
Runways: 4
Longest runway: 6,006 ft
Weather reporting: Reports METAR
TAF: Published
ATIS: 126.775 MHz
AWOS/ASOS: 126.775 MHz
CTAF: 120.7 MHz
Time zone: America/New_York
Sunset in: 3h 45m

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

Nearby airports

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

VFRMVFRIFRLIFRNo report

Within 25 NM

8 airports

KDYLDoylestown AirportDoylestown, PA15 nm WVFR METAR KPNENortheast Philadelphia AirportPhiladelphia, PA15 nm SWVFR METAR · TAF KWRIMc Guire Air Force BaseWrightstown, NJ19 nm SEVFR METAR · TAF KVAYSouth Jersey Regional AirportLumberton, NJ20 nm SVFR METAR KSMQSomerset AirportSomerville, NJ22 nm NVFR METAR KLOMWings FieldPhiladelphia, PA22 nm WVFR METAR

+2 more within 25 NM

25–50 NM

9 airports

KUKTQuakertown AirportQuakertown, PA28 nm WVFR METAR KPHLPhiladelphia International AirportPhiladelphia, PA31 nm SWVFR METAR · TAF KMJXOcean County AirportToms River, NJ32 nm SEVFR METAR KBLMMonmouth Executive AirportBelmar/Farmingdale, NJ32 nm EMETAR KLDJLinden AirportLinden, NJ33 nm NEVFR METAR KPTWHeritage FieldPottstown, PA34 nm WMETAR

+3 more within 50 NM

50–100 NM

7 airports

KILGWilmington AirportWilmington, DE51 nm SWVFR METAR · TAF KMQSChester County G O Carlson AirportCoatesville, PA52 nm WVFR METAR KJFKJohn F. Kennedy International AirportNew York, NY52 nm NEVFR METAR · TAF KLGALaGuardia AirportNew York, NY52 nm NEVFR METAR · TAF KRDGReading Regional Airport (Carl A Spaatz Field)Reading, PA53 nm WVFR METAR · TAF KMIVMillville Municipal AirportMillville, NJ56 nm SVFR METAR · TAF

+1 more within 100 NM

RC flying fields nearby

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

Washingtons Crossing RC Flyers Inc - Washington Crossing State Park — Titusville, NJ · 4 mi
Pegasus RC Flying Club Inc - Core Creek Park — Langhorne, PA · 7 mi
Millcreek RC Club Inc - Mill Creek Rd — Morrisville, PA · 8 mi

All RC flying fields →

See all New Jersey airports →

Historical Flying Weather

2006–2025 · ATIS Alerts Flying Weather Index

Based on historical observations from 2006–2025, KTTN reported VFR conditions during about 80.1% of valid daylight observations, with an estimated 273 VFR flying days a year. August had the most VFR weather; December had the most instrument conditions. Surface winds averaged 5.9 kt, calm 14.9% of the time.

VFR Score

Wind Score

Reliability Score

National VFR rank

#668 of 1,400

Regional rank

#69

State rank

Full historical breakdown

Daylight VFR

80.1%

MVFR

9.9%

IFR

5.8%

LIFR

4.1%

Est. VFR days/yr

273

Most VFR month

August

Fewest VFR month

December

Median ceiling

3,800 ft

Median visibility

10 sm

Calm wind

14.9%

Median wind

5 kt

Gusty hours

14.2%

Crosswind >15 kt

0.1%

Fog/mist days/yr

152

Thunderstorm days/yr

Summer density alt

1,745 ft

Flight category by month

VFRMVFRIFRLIFR

KTTN monthly flight-category distribution, 2006–2025
Month	VFR %	MVFR %	IFR %	LIFR %
Jan	79.6	9.0	5.7	5.6
Feb	80.3	7.1	7.1	5.5
Mar	80.4	8.9	6.0	4.7
Apr	80.3	10.0	6.0	3.7
May	76.1	10.8	7.6	5.5
Jun	80.7	10.1	5.5	3.7
Jul	84.0	10.0	3.9	2.1
Aug	84.3	9.9	4.2	1.5
Sep	80.5	10.5	5.9	3.1
Oct	78.7	11.8	5.6	4.0
Nov	83.3	9.0	4.6	3.1
Dec	74.9	11.0	7.3	6.8

Average wind by month

KTTN average wind by month, 2006–2025
Month	Mean wind (kt)
Jan	6.4 kt
Feb	6.7 kt
Mar	7.3 kt
Apr	7.1 kt
May	5.9 kt
Jun	5.4 kt
Jul	4.8 kt
Aug	4.7 kt
Sep	5.2 kt
Oct	5.5 kt
Nov	5.8 kt
Dec	6.0 kt

Mid-Atlantic flying weather Most VFR airports Windiest airports Flying Weather Index

Historical summary of past observations — not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.

KTTN airport diagram

Official FAA taxiway and runway layout. Tap to zoom.

The FAA airport diagram for Trenton Mercer Airport in Ewing Township, NJ shows the runway and taxiway layout across 4 runways, ramp areas, and hold-short positions — review it before taxiing at an unfamiliar field.

Official FAA airport diagram · d-TPP cycle 2608 · Not for navigation. Download the official FAA PDF ↗

KTTN weather — frequently asked

What runways are available at KTTN?+

KTTN has 4 runways — 06, 16, 24, 34; the longest is 6,006 ft. This page computes the live crosswind for each runway end from the current wind.

Does KTTN report its own weather?+

Yes — Trenton Mercer Airport has its own weather station and publishes METAR observations, which this page decodes live.

Does KTTN have a TAF?+

Yes — the TAF is shown on this page below the current conditions.

Does KTTN broadcast D-ATIS?+

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

Where can I find the KTTN airport diagram?+

The official FAA airport diagram for Trenton Mercer Airport (KTTN) is shown on this page — it maps the runway and taxiway layout, ramps, and hold-short lines. Tap it to zoom, or download the official FAA PDF free from the link under the diagram (updated every 28-day FAA charting cycle).

Pilot PIREPs for Trenton Mercer Airport (KTTN)

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 Trenton Mercer 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 KTTN 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 KTTN 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 KTTN →

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

No D-ATIS at this airport — showing METAR.

Spotted incorrect airport info? ✏️ Suggest an edit

How ATIS Alerts works · All US airports · New Jersey airports

Get free alerts for KTTN