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.
Wind from the southeast (130°) at 8 kt, visibility 10+ statute miles, no cloud data, temperature 21°C (70°F), altimeter 30.05 inHg. Conditions are Visual Flight Rules (VFR).
METAR KTTN 130253Z AUTO 13008KT 10SM CLR 21/17 A3005 RMK AO2 SLP168 T02110167 58006
Current pilot readout for KTTN
KTTN is currently VFR with winds from 130° at 8 knots, visibility 10+ statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 06, about 8 knots. Density altitude is approximately 850 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 →
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For pilots and crews overnighting at Trenton Mercer Airport (KTTN).
Nearby Pilot Hotel Deals
Well-reviewed places under $500 a night near KTTN (TTN); drag to explore or tap a pin for the rate.
Crew Rental Car Deals
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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 |
|---|---|---|---|---|
| 16FAV | 4,800 ft | ASP | 8 kt head | 2 kt left |
| 06 | 6,006 ft | ASP | 1 kt head | 8 kt right |
| 24 | 6,006 ft | ASP | 1 kt tail | 8 kt left |
| 34 | 4,800 ft | ASP | 8 kt tail | 2 kt right |
Open the crosswind calculator to try your own wind and runway numbers →
24-hour trend
Wind, ceiling and flight category over the last 24 hours.
Over the last 20 h: wind 3→8 kt, ceiling unlimited → unlimited.
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.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap
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.
Show raw report
ACY UA /OV ACY310001/TM 0625/FL008/TP A320/SK OVC008/RM OVC008 ON FINAL RWY 13, ADDITIONAL OVC070 INBOUND FOR ACY A/P
ACY UAHeader: reporting station and UA: a routine pilot report.OV ACY310001Location: fix or navaid, optionally with a radial and distance in NM.TM 0625Reported at 06:25 UTC.FL008Altitude: 800 ft MSL.TP A320Aircraft type reporting.SK OVC008Sky condition: cloud bases and tops in hundreds of feet MSL.RM OVC008 ON FINAL RWY 13, A…Remarks.Show raw report
MDT UA /OV THV/TM 0306/FL025/TP C340/SK BKN025
MDT UAHeader: reporting station and UA: a routine pilot report.OV THVLocation: fix or navaid, optionally with a radial and distance in NM.TM 0306Reported at 03:06 UTC.FL025Altitude: 2,500 ft MSL.TP C340Aircraft type reporting.SK BKN025Sky condition: cloud bases and tops in hundreds of feet MSL.Show raw report
MDT UA /OV CXY/TM 0255/FL026/TP HELO/SK BKN026
MDT UAHeader: reporting station and UA: a routine pilot report.OV CXYLocation: fix or navaid, optionally with a radial and distance in NM.TM 0255Reported at 02:55 UTC.FL026Altitude: 2,600 ft MSL.TP HELOAircraft type reporting.SK BKN026Sky condition: cloud bases and tops in hundreds of feet MSL.Show raw report
POU UA /OV PWL210010/TM 0118/FL070/TP C25A/TB NEG/IC NEG/RM DURD 170-080
POU UAHeader: reporting station and UA: a routine pilot report.OV PWL210010Location: fix or navaid, optionally with a radial and distance in NM.TM 0118Reported at 01:18 UTC.FL070Altitude: 7,000 ft MSL.TP C25AAircraft type reporting.TB NEGTurbulence: none reported.IC NEGIcing: none reported.RM DURD 170-080Remarks.⚠️ 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 21 observations, with 0 flight-category changes. The strongest gust reached 18 kt, the lowest ceiling was 4,800 ft. Wind most often came from the S.
Most recent change: MVFR → VFR
- 34
- 39%
- 24
- 27%
- 16
- 20%
- 06
- 14%
TAF | Terminal Aerodrome Forecast
Issued 0520Z (1:20 AM EDT)
TAF KTTN 130520Z 1306/1406 13007KT P6SM VCSH OVC040 FM130800 10003KT 4SM -RA BR OVC012 FM130900 05005KT 2SM RA BR OVC008 TEMPO 1310/1313 1SM +RA BR OVC004 FM131300 34007KT 3SM BR VCSH BKN007 FM131700 31006KT P6SM BKN025 FM132000 28006KT P6SM BKN100
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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
- Next sunset
- 16h 42m
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.
Within 25 NM
8 airports+2 more within 25 NM
25–50 NM
9 airports+3 more within 50 NM
50–100 NM
7 airports+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
Historical Flying Weather at KTTN
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.
Full historical breakdown
Flight category by month
| 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
| 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 |
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 2610 · 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-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 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.
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⚠️ 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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