Montgomery County Airpark (KGAI) Aviation Weather: METAR
As of 11:56 PM ET, Oct 28, KGAI is currently VFR with calm winds, visibility 10+ statute miles, and no ceiling reported.
Live aviation weather for Montgomery County Airpark in Gaithersburg, MD, including METAR, flight category, wind, visibility, ceiling, altimeter and runway crosswinds.
Montgomery County Airpark (KGAI) is a general aviation airport serving pilots in and around Gaithersburg, MD at a field elevation of 539 ft. KGAI reports its own METAR, decoded live on this page as flight category, wind, visibility, ceiling and altimeter. It has one runway (14/32), the longest 4,202 ft. Automated weather is broadcast on 128.275.
Wind calm, visibility 10+ statute miles, no cloud data, temperature 9°C (48°F), altimeter 30.35 inHg. Conditions are Visual Flight Rules (VFR).
METAR KGAI 290356Z AUTO 00000KT 10SM CLR 09/08 A3035 RMK AO2 SLP290 T00890083 401890067
What changed at KGAI?
Since the 0256Z (10:56 PM EDT) report, compared automatically against the latest METAR.
No significant changes since the 0256Z (10:56 PM EDT) report, conditions are holding steady.
Current pilot readout for KGAI
KGAI is currently VFR with calm winds, visibility 10+ statute miles, and no ceiling reported. Density altitude is approximately -600 ft (field elevation 539 ft). KGAI does not publish a TAF. The nearest TAF station is KIAD, about 19 nm away.
KGAI by the numbers
What the long-run records say about flying here, computed for this airport alone.
KGAI reported VFR in 82% of daylight observations over 20 years, about 281 flyable days a year. July is the most reliable month and December the least, with IFR or worse 14% of the time. When conditions drop it is usually low ceilings rather than fog (ceilings under 1,000 ft 8% of hours, visibility under 3 miles 4%).
Over 20 years of hourly winds, runway 32 had the best headwind 57% of the time, runway 14 43%, and winds were calm 41% of hours. Winds most often blow from the west-northwest. Crosswind on the best available runway topped 15 kt in under 1% of hours.
Thunderstorms were reported on about 38 days a year. 69% of storm hours fall in June, July and August, peaking in July when storms were in the air 2% of the time.
Snow fell on about 7 days a year. From December to February KGAI was IFR or worse 12% of the time, against 6% from June to August.
Field elevation is 539 ft, but on a median summer afternoon the air performs like 2,104 ft, 1,565 ft higher. Plan for a longer takeoff roll and a weaker climb from June to August.
Gusts showed up in 12% of hours, typically 8 kt above the steady wind, and the strongest credible gust on record was 47 kt. March is the windiest month (mean 6 kt) and September the calmest.
Sources: hourly observations 2006 to 2025 and the per-runway wind climatology 2006 to 2025. 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.
Current wind is calm: calm wind is not a factor for runway selection, and with no wind there is no head/tail or crosswind component to compute. Live numbers return automatically once a report includes a wind direction.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 14 | 4,202 ft | ASP | - | - |
| 32 | 4,202 ft | ASP | - | - |
Open the crosswind calculator to try your own wind and runway numbers →
KGAI runways
1 physical runway · 2 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 14/324,202 × 75 ft · ASPCurrent useno stated-runway source at KGAIWind
- 14
- no steady wind
- 32
- no steady wind
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 0→0 kt, ceiling unlimited → unlimited.
KGAI 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 KGAI
Reported by pilots in flight over the past 6 hours, via aviationweather.gov.
Show raw report
ROA UA /OV GVE045040/TM 2334/FL240/TP C68A/TA M24/IC LGT RIME
ROA UAHeader: reporting station and UA: a routine pilot report.OV GVE045040Location: fix or navaid, optionally with a radial and distance in NM.TM 2334Reported at 23:34 UTC.FL240Altitude: 24,000 ft MSL.TP C68AAircraft type reporting.TA M24Outside air temperature, °C.IC LGT RIMEIcing: light rime.⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.
Recent aviation weather trends at KGAI
From ATIS Alerts' hourly weather history.
Over the past 24 hours, KGAI reported a mix of conditions, most often VFR across 41 observations, with 14 flight-category changes. The lowest ceiling was 700 ft. Wind most often came from the SE.
Most recent change: MVFR → VFR
Most recent change: IFR → VFR
Share of hours each runway had the most headwind. From wind reports, not ATC assignments.
- 32
- 65%
- 14
- 35%
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Live crosswind meter
Measured by KGAI's own weather station.
Wind is calm or variable. Either end works.
Asphalt · 4,202 ft. Headings from FAA runway data. Not for navigation.
Field aerial
North up
Runway 14/32 drawn from FAA threshold coordinates.
Imagery: USGS The National Map (public domain). Something off? ✏️ Suggest an edit
Nearby TFRs
Active FAA TFRs near KGAI
FAA TFR data shows an active temporary flight restriction near KGAI.
View all active US TFRs → · Official FAA TFR ↗
Verify with official FAA TFR sources before flight.
Airport info
From the FAA airport record (cycle 2026-10-01) and OurAirports.
Services
- Fuel
- 100LL · Jet A
- Attended
- March-May Daily 0800-1900 local; June-September Daily 0800-2000 local; October-February Daily 0800-1800 local
- Repairs
- Airframe minor · Engine major
- Oxygen
- Bottled, low pressure
- Transient parking
- Tie-downs · Hangars
- Landing fee
- No
- Other services
- Air freight · Avionics · Charter · Flight instruction · Aircraft rental · Aircraft sales
- Control tower
- None
Airport
- Type
- General aviation airport
- ICAO
- KGAI
- IATA
- GAI
- FAA LID
- GAI
- City
- Gaithersburg
- State
- Maryland
- Country
- United States
- Elevation
- 539 ft
- Coordinates
- 39.1683, -77.1660
- Runways
- 1 physical runway · 2 runway ends
- Longest runway
- 4,202 ft
- Weather reporting
- Reports METAR
- TAF
- Nearest KIAD
- AWOS/ASOS
- 128.275 MHz
- Time zone
- America/New_York
- Next sunset
- 17h 23m
Run a flight school, FBO, or club here? Embed KGAI'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.
- Capital Area Soaring Assn - Oaks Landfill , Laytonsville, MD · 3 mi
- DCRC Club - Walt Good Field , Boyds, MD · 9 mi
- Capitol Area Soaring Assn - Capitol Polo Club , Poolesville, MD · 14 mi
Historical Flying Weather at KGAI
2006–2025 · ATIS Alerts Flying Weather Index
Based on historical observations from 2006–2025, KGAI reported VFR conditions during about 82.2% of valid daylight observations, with an estimated 281 VFR flying days a year. July had the most VFR weather; December had the most instrument conditions. Surface winds averaged 4.3 kt, calm 31.5% of the time.
Full historical breakdown
Flight category by month
| Month | VFR % | MVFR % | IFR % | LIFR % |
|---|---|---|---|---|
| Jan | 81.8 | 7.0 | 5.9 | 5.3 |
| Feb | 81.7 | 6.6 | 6.1 | 5.6 |
| Mar | 81.2 | 8.1 | 6.1 | 4.5 |
| Apr | 82.7 | 8.2 | 6.1 | 3.0 |
| May | 77.2 | 10.8 | 7.8 | 4.2 |
| Jun | 84.0 | 8.8 | 5.0 | 2.2 |
| Jul | 87.0 | 8.2 | 3.7 | 1.2 |
| Aug | 84.0 | 9.8 | 4.4 | 1.7 |
| Sep | 78.5 | 11.9 | 6.6 | 3.1 |
| Oct | 78.0 | 11.9 | 7.1 | 3.0 |
| Nov | 85.0 | 7.5 | 3.8 | 3.7 |
| Dec | 77.0 | 9.4 | 6.1 | 7.5 |
Average wind by month
| Month | Mean wind (kt) |
|---|---|
| Jan | 5.5 kt |
| Feb | 5.6 kt |
| Mar | 5.9 kt |
| Apr | 5.5 kt |
| May | 4.0 kt |
| Jun | 3.7 kt |
| Jul | 3.0 kt |
| Aug | 2.8 kt |
| Sep | 2.8 kt |
| Oct | 3.7 kt |
| Nov | 4.7 kt |
| Dec | 4.8 kt |
Historical summary of past observations: not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.
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GAI's real runway layout on the back, elevation and tower frequency on the front. Add your tail number on the sleeve.
Pilot PIREPs for Montgomery County Airpark (KGAI)
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 Montgomery County Airpark, 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 KGAI 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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