Nantucket Memorial Airport (KACK) Aviation Weather: METAR, TAF & ATIS
As of 6:53 PM ET, Oct 27, KACK is currently VFR with winds from 070° at 3 knots, visibility 10+ statute miles, and no ceiling reported. The FAA lists no ground stop or delay program for KACK right now.
Live aviation weather for Nantucket Memorial Airport in Nantucket, MA, including METAR, TAF, ATIS, flight category, wind, visibility, ceiling, altimeter and runway crosswinds.
Nantucket Memorial Airport (KACK) is a regional airport serving Nantucket, MA at a field elevation of 47 ft. KACK reports its own METAR and publishes a TAF, decoded live on this page as flight category, wind, visibility, ceiling and altimeter. It has 2 physical runways (06/24, 15/33), the longest 6,303 ft. The official FAA airport diagram is at the bottom of the page.
Wind from the east-northeast (070°) at 3 kt, visibility 10+ statute miles, no cloud data, temperature 5°C (41°F), altimeter 30.38 inHg. Conditions are Visual Flight Rules (VFR).
METAR KACK 272253Z 07003KT 10SM CLR 05/01 A3038 RMK AO2 SLP287 T00500011
What changed at KACK?
Since the 2153Z (5:53 PM EDT) report, compared automatically against the latest METAR.
- Temperature down 3°C.
Current pilot readout for KACK
KACK is currently VFR with winds from 070° at 3 knots, visibility 10+ statute miles, and no ceiling reported. the wind favors northeast-facing runway ends (06). Density altitude is approximately -1,700 ft (field elevation 47 ft). Review the latest TAF below for forecast changes before departure.
KACK by the numbers
What the long-run records say about flying here, computed for this airport alone.
The FAA issued 1 ground stop and 0 ground delay programs for ACK between October 2025 and October 2026, affecting 1 day. The reason was disabled aircraft. The ground stop lasted about 39 min.
KACK reported VFR in 70% of daylight observations over 20 years, about 231 flyable days a year. November is the most reliable month and July the least, with IFR or worse 30% of the time. When conditions drop it is usually a mix of low ceilings (under 1,000 ft 12% of hours) and low visibility (under 3 miles 11%).
Over 20 years of hourly winds, runway 24 had the best headwind 35% of the time, runway 33 27%, and winds were calm 5% of hours. Winds most often blow from the west. Crosswind on the best available runway topped 15 kt in 1% of hours.
Fog was reported on about 93 days a year, and fog or mist on 202. June and July are the foggiest months, with fog in 31% of hours, against 12% in November.
ACK departures left within 15 minutes of schedule 77% of the time across 1,584 flights, June 2025 to May 2026. 9 AM to noon departures did best (86%) and 3 to 6 PM did worst (68%).
Snow fell on about 26 days a year and freezing rain or drizzle on 1. From December to February KACK was IFR or worse 14% of the time, against 26% from June to August.
Sources: FAA ATCSCC advisories, hourly observations 2006 to 2025, the per-runway wind climatology 2006 to 2025 and BTS airline on-time data. Historical summaries, not a forecast: check the current METAR, TAF and a briefing before flight.
New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →
Runway wind check
Estimated head/tailwind and crosswind for each runway end from the current reported wind.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 06FAV | 6,303 ft | ASP | 3 kt head | 1 kt right |
| 15 | 4,500 ft | ASP | 1 kt head | 3 kt left |
| 33 | 4,500 ft | ASP | 1 kt tail | 3 kt right |
| 24 | 6,303 ft | ASP | 3 kt tail | 1 kt left |
Open the crosswind calculator to try your own wind and runway numbers →
KACK runways
2 physical runways · 4 runway ends. Each card opens the runway's intelligence page: equipment and lighting, LAHSO, frequencies, today's configuration, predicted use, history and approaches.
- Status not monitoredRunway 06/246,303 × 150 ft · ASPCurrent useno stated-runway source at KACKWind
- 06
- 3 kt headwind · 1 kt crosswind from right
- 24
- 3 kt tailwind · 1 kt crosswind from left
no active equipment NOTAM receivedView Runway Intelligence → - Status not monitoredRunway 15/334,500 × 100 ft · ASPCurrent useno stated-runway source at KACKWind
- 15
- 1 kt headwind · 3 kt crosswind from left
- 33
- 1 kt tailwind · 3 kt crosswind from right
no active equipment NOTAM receivedView Runway Intelligence →
“Current use” is what the facilitystates; wind components are arithmetic on the current METAR against TRUE headings; status reflects NOTAMs received through SWIM, the tower's TFDM record and the D-ATIS — a runway reads “Open” only with a complete NOTAM picture.
24-hour trend
Wind, ceiling and flight category over the last 24 hours.
Over the last 23 h: wind 9→3 kt, ceiling unlimited → unlimited.
KACK weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap
NOAA NEXRAD composite and lightning, updated about every five minutes; amber frames are HRRR model guidance, not observed radar. Not for navigation.
Pilot reports (PIREPs) within 100 NM of KACK
Reported by pilots in flight over the past 6 hours, via aviationweather.gov.
Show raw report
GON UA /OV GON225005 /TM 2156 /FL045 /TP C172 /WX FV10SM /TA 04 /TB NEG
GON UAHeader: reporting station and UA: a routine pilot report.OV GON225005Location: fix or navaid, optionally with a radial and distance in NM.TM 2156Reported at 21:56 UTC.FL045Altitude: 4,500 ft MSL.TP C172Aircraft type reporting.WX FV10SMWeather and flight visibility observed.TA 04Outside air temperature, °C.TB NEGTurbulence: none reported.⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.
Recent aviation weather trends at KACK
From ATIS Alerts' hourly weather history.
Over the past 24 hours, KACK reported mostly VFR across 24 observations, with 0 flight-category changes. The strongest gust reached 22 kt, the lowest ceiling was 4,100 ft. Wind most often came from the N.
Most recent change: LIFR → VFR
Share of hours each runway had the most headwind. From wind reports, not ATC assignments.
- 06
- 47%
- 24
- 27%
- 33
- 16%
- 15
- 10%
TAF | Terminal Aerodrome Forecast
Issued 2118Z (5:18 PM EDT)
TAF KACK 272118Z 2721/2818 03006KT P6SM SKC FM280200 07004KT P6SM FEW150 SCT250
New to TAFs? How to read one →
Get KACK weather alerts in Telegram
Stop refreshing aviation weather manually. Track KACK 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 KACK free on TelegramLive KACK Weather
Live crosswind meter
Measured by KACK's own weather station.
Wind is 25° off runway 06, the end with the most headwind right now.
Asphalt · 6,303 ft. Headings from FAA runway data. Not for navigation.
Field aerial
North up
Runway 06/24, 15/33 drawn from FAA threshold coordinates.
Imagery: USGS The National Map (public domain). Something off? ✏️ Suggest an edit
Airport info
From the FAA airport record (cycle 2026-10-01) and OurAirports.
Services
- Fuel
- 100LL · Jet A+
- Attended
- 24 hours
- Transient parking
- Tie-downs · Hangars
- Landing fee
- Yes
- Other services
- Air freight · Charter
- Control tower
- Yes
- Wind indicator
- Lighted
Airport
- Type
- Regional airport
- ICAO
- KACK
- IATA
- ACK
- FAA LID
- ACK
- City
- Nantucket
- State
- Massachusetts
- Country
- United States
- Elevation
- 47 ft
- Coordinates
- 41.2531, -70.0602
- Runways
- 2 physical runways · 4 runway ends
- Longest runway
- 6,303 ft
- Weather reporting
- Reports METAR
- TAF
- Published
- ATIS
- 127.5 MHz
- CTAF
- 118.3 MHz
- Time zone
- America/New_York
- Next sunset
- 22h 19m
Is there a ground stop at ACK today? Delay status and history →
Run a flight school, FBO, or club here? Embed KACK'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
3 airports25–50 NM
8 airports+2 more within 50 NM
50–100 NM
8 airports+2 more within 100 NM
RC flying fields nearby
AMA model-aircraft club fields around this airport: live wind, crosswind & flyability on each page.
- Lambert R/C Flying Association - South Shore Rd , Nantucket, MA · 2 mi
- Martha's Vineyard Model Flying Club - Marth'as Vineyard Regional High School , Oak Bluffs, MA · 30 mi
- Martha's Vineyard Model Flying Club - MF Correllus State Forest , Edgartown, MA · 30 mi
Historical Flying Weather at KACK
2006–2025 · ATIS Alerts Flying Weather Index
Based on historical observations from 2006–2025, KACK reported VFR conditions during about 70.3% of valid daylight observations, with an estimated 231 VFR flying days a year. November had the most VFR weather; July had the most instrument conditions. Surface winds averaged 10.6 kt, calm 3.3% of the time.
Full historical breakdown
Flight category by month
| Month | VFR % | MVFR % | IFR % | LIFR % |
|---|---|---|---|---|
| Jan | 69.4 | 16.7 | 6.8 | 7.1 |
| Feb | 71.7 | 13.6 | 6.8 | 7.9 |
| Mar | 72.1 | 12.4 | 6.3 | 9.3 |
| Apr | 71.8 | 10.7 | 6.0 | 11.6 |
| May | 63.4 | 9.5 | 6.9 | 20.1 |
| Jun | 62.5 | 10.0 | 6.0 | 21.5 |
| Jul | 58.8 | 10.8 | 6.1 | 24.2 |
| Aug | 69.7 | 10.2 | 6.0 | 14.1 |
| Sep | 74.4 | 8.7 | 6.0 | 11.0 |
| Oct | 73.8 | 12.7 | 6.4 | 7.0 |
| Nov | 77.9 | 12.9 | 4.2 | 4.9 |
| Dec | 70.7 | 16.9 | 6.4 | 6.0 |
Average wind by month
| Month | Mean wind (kt) |
|---|---|
| Jan | 12.1 kt |
| Feb | 12.1 kt |
| Mar | 12.6 kt |
| Apr | 11.6 kt |
| May | 10.4 kt |
| Jun | 9.2 kt |
| Jul | 8.3 kt |
| Aug | 8.2 kt |
| Sep | 9.3 kt |
| Oct | 10.9 kt |
| Nov | 11.5 kt |
| Dec | 11.6 kt |
Historical summary of past observations: not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.
KACK airport diagram
Official FAA taxiway and runway layout. Tap to zoom.
Official FAA airport diagram · d-TPP cycle 2611 · Not for navigation. Download the official FAA PDF ↗
Customize your ACK shirt or mug
ACK's real runway layout on the back, elevation and tower frequency on the front. Add your tail number on the sleeve.
Pilot PIREPs for Nantucket Memorial Airport (KACK)
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 Nantucket Memorial 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 KACK 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.
⚠️ 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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