WxDecoder

WI03 Weather Horner Farms Airport

Union Grove, WisconsinElevation 770 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KMKE · 14 NM NE · 55 min old
Ceiling 25,000 ft, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KMKE
WIND
170@3
steady
VISIBILITY
10 SM
16.1 km
CEILING
25,000 ft
lowest BKN/OVC
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. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly cloudy, low near 49F, 0% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Thursday: Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Cloudy 49 NW 4 kt – 0%
Monday Mostly Cloudy 58/47 NE 13 kt – 10%
Tuesday Mostly Cloudy 63/53 SE 9 kt – 2%
Wednesday Mostly Sunny 73/56 S 9 kt – 24%
Thursday Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms 73/51 SW 9 kt – 30% Thunderstorms in the forecast
Friday Chance Rain Showers 71/54 SE 9 kt – 32%
Saturday Chance Rain Showers 70/54 S 9 kt – 53%
Sunday Chance Rain Showers 67 SW 9 kt – 39%

Source: National Weather Service (office MKX). Forecast issued 0147Z.

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 WI03. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

2 runways · longest 2,000 ft

09/27
Dimensions
2,000 x 100 ft
Surface
Turf (good)
RWY 09
Traffic patternLeft
RWY 27
Traffic patternLeft
18/36
Dimensions
1,300 x 80 ft
Surface
Turf (good)
RWY 18
Traffic patternLeft
RWY 36
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
770 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2254Z 5:54 PM
Sunrise
1218Z 7:18 AM
Loggable night
2323Z (6:23 PM local) → 1149Z (6:49 AM local)
end of evening to start of morning civil twilight
Position lights required
2254Z (5:54 PM local) → 1218Z (7:18 AM local)
sunset to sunrise (91.209)
Night passenger currency
2354Z (6:54 PM local) → 1118Z (6:18 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

Horner Farms Airport is in Union Grove, Wisconsin. Field elevation 770 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSmall airport
ManagerMIKE SANFELIPPO
Manager phone414-835-4661
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATAWI03
SectionalCHICAGO
Center (ARTCC)CHICAGO
Flight service (AFSS)GREEN BAY
RegionWisconsin
CountryUnited States
Coordinates42.7981, -88.1334
Distance from city4 NM NE
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

WI03 traffic patterns

2026-07-03 to 2026-07-03, 1 days observed · data 2026-10-23

Insufficient confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
0
AVG OPS/DAY
1
Operations trend (1 days)

Busiest day: Fri · Busiest month: Jul

FLEET MIX

Mostly small piston aircraft.

TOP AIRCRAFT TYPES
›C172 (Piston single) · ~0 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

WI03 has no on-field report. Nearest reporting station: KMKE (14 NM NE, VFR).

KMKE General Mitchell International Airport
14 NM NE
VFR
KRAC John H Batten Airport
14 NM E
VFR
KENW Kenosha Regional Airport
15 NM SE
VFR
KUES Waukesha County Airport
15 NM N
VFR
KMWC Lawrence J Timmerman Airport
19 NM N
VFR
KUGN Waukegan National Airport
25 NM SE
VFR
AIRPORT REMARKS

Operational remarks

›+15' TREES 50' LEFT OF CNTRLN.
›+16' PLINE RIGHT AND LEFT OF CNTRLN.
›HAS A PLINE PERPENDICULAR TO RWY.
›HAS A ROAD PERPENDICULAR TO RWY.
›FOR CD CTC CHICAGO ARTCC AT 630-906-8921.
›(A89) OR LOCAL CALL 632-3363.
›EXISTED PRIOR TO 1959.
›+25' PLINE RIGHT AND LEFT OF CNTRLN.
›+20' BLDG 25' RIGHT OF CNTRLN.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗WI03 on OurAirports
FREQUENTLY ASKED
Does WI03 have a METAR?
No on-field METAR is issued for WI03. This page uses the nearest reporting station as a reference.
Does WI03 have a TAF?
No TAF is issued directly for WI03. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at WI03?
WI03 sits at 770 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for WI03?
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.