WxDecoder

K05C Weather Griffith-Merrillville Airport

Griffith, IndianaElevation 634 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KVPZ · 18 NM E · 36 min old
No ceiling, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KVPZ
WIND
Calm
no steady wind
VISIBILITY
10 SM
16.1 km
CEILING
None
no BKN/OVC layer
FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

No aviation METAR is published for this airport. The nearest National Weather Service station reports wind calm, visibility 10 SM, temperature 11C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight partly cloudy, low near 50F, 1% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Thursday: Mostly Sunny then Slight Chance Showers And Thunderstorms. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Partly Cloudy 50 SSW 4 kt – 1%
Monday Patchy Fog 62/49 N 9 kt 17 kt 3%
Tuesday Mostly Cloudy 68/55 SE 9 kt – 2%
Wednesday Mostly Sunny 70/56 S 9 kt – 4%
Thursday Mostly Sunny then Slight Chance Showers And Thunderstorms 76/56 SW 9 kt – 20% Thunderstorms in the forecast
Friday Slight Chance Rain Showers 75/57 S 4 kt – 23%
Saturday Chance Rain Showers 72/56 S 4 kt – 54%
Sunday Chance Rain Showers 70 SSW 9 kt – 45%

Source: National Weather Service (office LOT). Forecast issued 0151Z.

Radar

Radar data: NOAA/NWS MRMS composite reflectivity. For situational awareness only, not a substitute for an official weather briefing.

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RUNWAYS & WIND
1 runway
NESW0826
WIND
No on-field weather data
No reporting weather station on the field, so wind components cannot be computed. See nearby stations below.
RUNWAYS

Runway detail & declared distances

1 runway · longest 4,900 ft

08/26
Dimensions
4,899 x 75 ft
Surface
Asphalt (good)
Edge lights
MED
RWY 0880°T
REILYes
VGSIPAPI (P2L)
Traffic patternLeft
RWY 26260°T
Displaced threshold1,120 ft
REILYes
VGSIPAPI (P2R)
Traffic patternLeft

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

FIELD CONDITIONS

Field elevation

Field elevation
634 ft MSL

Density and pressure altitude need a current temperature and altimeter from the METAR.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2253Z 5:53 PM
Sunrise
1213Z 7:13 AM
Loggable night
2322Z (6:22 PM local) → 1145Z (6:45 AM local)
end of evening to start of morning civil twilight
Position lights required
2253Z (5:53 PM local) → 1213Z (7:13 AM local)
sunset to sunrise (91.209)
Night passenger currency
2353Z (6:53 PM local) → 1113Z (6:13 AM local)
1 hr after sunset to 1 hr before sunrise (61.57(b))

FAA definitions, shown in Zulu with airport-local time. Verify for your operation.

AIRPORT INFORMATION

Facility & services

Griffith-Merrillville Airport is in Griffith, Indiana. Field elevation 634 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPublicly owned
UseOpen to the public
TypeSmall airport
ManagerCRAIG ANDERSON
Manager phone219-924-0207
AttendedALL MON-FRI, 0800–2000
CHARTS & AIRSPACE
ICAO / IATAK05C
SectionalCHICAGO
Center (ARTCC)CHICAGO
Flight service (AFSS)TERRE HAUTE
RegionIndiana
CountryUnited States
Coordinates41.5198, -87.3995
Distance from city2 NM E
SERVICES & LIGHTING
Fuel100LL · Jet A · UL94
Control towerNon-towered
Field lightingSee remarks
BeaconWhite-green (lighted land airport)
CTAF123.000
UNICOM123.000
FREQUENCIES

Communications

133.1
CHICAGO APP/DEP
A/D
123.65
TERRE HAUTE RDO
RDO
123
CTAF/UNICOM
UNIC
123.000
CTAF
CTAF
123.000
UNICOM
UNICOM

Not all tower/ground/approach frequencies are in our datasets. Verify with the FAA Chart Supplement.

AIRCRAFT ACTIVITY

K05C traffic patterns

2026-06-12 to 2026-10-23, 68 days observed · data 2026-10-23

High confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
10.5
AVG OPS/DAY
14.5
Activity trend over 18 days: rising, from 15 to 19 operations per dayOperations trend (18 days)

Busiest day: Sat · Busiest month: Oct

FLEET MIX
Piston single 69%Unknown 14%Twin 8%Helicopter 5%Jet 4%

Mostly small piston aircraft.

TOP AIRCRAFT TYPES
›P28A (Piston single) · ~30 landings/mo
›C152 (Piston single) · ~22 landings/mo
›PA18 (Piston single) · ~12 landings/mo
›UNKN (Unknown) · ~12 landings/mo
›C172 (Piston single) · ~5 landings/mo
LIKELY BASED AIRCRAFT
Low-confidence estimate

Aircraft likely based near this airport (estimate), mostly single-engine piston aircraft.

›PA18 (Piston single)
›P28A (Piston single)
›C152 (Piston single)
›C177 (Piston single)
›P28R (Unknown)

This is an estimate based on repeated flight patterns, not registration data. Do not rely on it to identify specific aircraft or owners.

Data limitations (4)
›ADS-B coverage is incomplete; counts are an observed lower bound, not official totals.
›Some aircraft do not transmit usable ADS-B and are not counted.
›Aircraft types and based estimates are inferred and may be wrong.
›This is not official ATC, FAA, or airport data.
NEARBY AIRPORTS

Weather reference stations

K05C has no on-field report. Nearest reporting station: KVPZ (18 NM E, VFR).

KVPZ Porter County Municipal Airport
18 NM E
VFR
KMDW Chicago Midway International Airport
22 NM NW
VFR
KMGC Michigan City Municipal Airport
28 NM NE
VFR
KPPO La Porte Municipal Airport
30 NM E
VFR
KLOT Lewis University Airport
32 NM W
VFR
KIKK Greater Kankakee Airport
34 NM SW
VFR
AIRPORT REMARKS

Operational remarks

›DEER ON & INVOF ARPT.
›0800-1900 DURG WINTER MONTHS.
›FOR CD CTC CHICAGO APCH AT 847-289-0926.
›UNATNDD NEW YEARS, EASTER, THANKSGIVING & CHRISTMAS.
›APCH SLOPE 26:1 FM DTHR; 55 FT TREES 1480 FT FM DTHR.
›ACTVT REIL RWY 08 & 26; PAPI RWY 08 & 26; MIRL RWY 08/26 - CTAF.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗Wikipedia
↗K05C on OurAirports
FREQUENTLY ASKED
Does K05C have a METAR?
No on-field METAR is issued for K05C. This page uses the nearest reporting station as a reference.
Does K05C have a TAF?
No TAF is issued directly for K05C. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at K05C?
K05C sits at 634 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for K05C?
No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.
This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.