WxDecoder

3IS4 Weather Merkle Airport

Hanover, IllinoisElevation 970 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KDBQ · 18 NM NW · 51 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 · KDBQ
WIND
360@4
steady
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 from 350° at 7 kt, visibility 10 SM, temperature 16C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly cloudy, low near 51F, 2% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Thursday: Chance Showers And Thunderstorms. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Cloudy 51 N 4 kt – 2%
Monday Mostly Cloudy 63/47 NE 4 kt – 3%
Tuesday Mostly Cloudy 70/55 SE 9 kt – 13%
Wednesday Mostly Sunny 73/57 S 9 kt – 47%
Thursday Chance Showers And Thunderstorms 72/54 SW 4 kt – 47% Thunderstorms in the forecast
Friday Chance Rain Showers 72/56 SE 4 kt – 44%
Saturday Rain Showers Likely 69/55 S 4 kt – 60%
Sunday Chance Rain Showers 67 W 4 kt – 31%

Source: National Weather Service (office DVN). Forecast issued 0344Z.

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
Crosswind calculator
No runway layout is available for 3IS4. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 2,900 ft

18/36
Dimensions
2,900 x 100 ft
Surface
Turf
Edge lights
LOW
RWY 18
Displaced threshold300 ft
RWY 36

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
970 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2304Z 6:04 PM
Sunrise
1226Z 7:26 AM
Loggable night
2333Z (6:33 PM local) → 1158Z (6:58 AM local)
end of evening to start of morning civil twilight
Position lights required
2304Z (6:04 PM local) → 1226Z (7:26 AM local)
sunset to sunrise (91.209)
Night passenger currency
0004Z (7:04 PM local) → 1126Z (6:26 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

Merkle Airport is in Hanover, Illinois. Field elevation 970 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSmall airport
ManagerNATHAN AND KAREN GREINER
Manager phone815-281-0773
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATA3IS4
SectionalCHICAGO
Center (ARTCC)CHICAGO
Flight service (AFSS)KANKAKEE
RegionIllinois
CountryUnited States
Coordinates42.2889, -90.3454
Distance from city3 NM W
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

3IS4 traffic patterns

2026-07-15 to 2026-07-15, 1 days observed · data 2026-10-23

Insufficient confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
1
AVG OPS/DAY
1
Operations trend (1 days)

Busiest day: Wed · Busiest month: Jul

FLEET MIX
Piston single 100%

Mostly small piston aircraft.

TOP AIRCRAFT TYPES
›C172 (Piston single) · ~1 landings/mo
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

3IS4 has no on-field report. Nearest reporting station: KDBQ (18 NM NW, VFR).

KDBQ Dubuque Regional Airport
18 NM NW
VFR
KCWI Clinton Municipal Airport
27 NM S
VFR
KFEP Albertus Airport
34 NM E
VFR
KMXO Monticello Regional Airport
37 NM W
VFR
KDVN Davenport Municipal Airport
42 NM S
VFR
KSQI Whiteside County Airport - Joseph H Bittorf Field
44 NM SE
VFR
AIRPORT REMARKS

Operational remarks

›FOR CD CTC CHICAGO ARTCC AT 630-906-8921.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗3IS4 on OurAirports
FREQUENTLY ASKED
Does 3IS4 have a METAR?
No on-field METAR is issued for 3IS4. This page uses the nearest reporting station as a reference.
Does 3IS4 have a TAF?
No TAF is issued directly for 3IS4. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at 3IS4?
3IS4 sits at 970 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for 3IS4?
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.