Mount Washington Observatory Heliport
KMWN · NH
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Weather
METAR observed
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TAF forecast
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Sun & FAA night2026-08-04 · night begins 08:39 PM
| Event | Local (EDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:03 AM | 09:03Z |
| Sunrise | 05:36 AM | 09:36Z |
| Sunset | 08:06 PM | 00:06Z |
| Evening civil twilight Loggable night begins | 08:39 PM | 00:39Z |
Plan a flight from KMWN
Past 24 hours category · wind · ceiling · visibility trends
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Density altitude today projected curve · departure window · takeoff roll
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Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Advisories
NOTAMs
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Pilot reports
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Airspace hazards
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Runways
Headings shown are true (magnetic variation unavailable).
Prefer one flat page? Full runway details for KMWN → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the KMWN kneeboard →
Comms & NavAids
No published frequencies, ILS, or nearby navaids for KMWN.
Charts & procedures
No published instrument procedures or Chart Supplement for KMWN — open it on the VFR sectional →
Airport info
From the field
Do you run KMWN, or an FBO, flight school, or shop on it? Claim your listing to keep fuel, fees, hours, and services current.
Airport information
- ICAO / IATA
- KMWN
- Coordinates
- 44.2703, -71.3033
- Elevation
- 6,288 ft MSL
Detailed FAA facility data isn't available for this airport.
No published services or facility detail for KMWN.
Embed KMWN weather on your site free widget for schools, clubs & FBOs
Live METAR, flight category, and favored runway for KMWN — paste this into your website's HTML. It updates automatically and stays free.
More widgets — crosswind, E6B, density altitude — on the embed page.
Nearby airports
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Also nearby: 2G8 Gorham Airport (9 NM) · NH51 Wickson Heliport (private) (9 NM) · 63NH Jackson Fire Heliport (private) (9 NM) · NH21 Abbott Heliport (private) (9 NM) · 8B2 Twin Mountain Airport (10 NM)
About KMWN
Mount Washington Observatory (KMWN) is a heliport in NH, at 6,288 ft MSL. This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for KMWN, refreshed from the Aviation Weather Center and FAA NASR.
Where is KMWN?
Mount Washington Observatory is in NH, at an elevation of 6,288 ft MSL. Coordinates: 44.2703, -71.3033.
Fly out of KMWN often?
Save KMWN as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open KMWN in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.