WxDecoder

3WI1 Weather Olson's Airport

Union Grove, WisconsinElevation 825 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KENW · 8 NM SE · 39 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 · KENW
WIND
190@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 210° at 5 kt, visibility 10 SM, temperature 14C. 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 59/48 NE 13 kt – 10%
Tuesday Mostly Cloudy 63/53 SE 9 kt – 3%
Wednesday Mostly Sunny 73/56 S 9 kt – 21%
Thursday Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms 73/52 SW 9 kt – 28% Thunderstorms in the forecast
Friday Chance Rain Showers 71/55 SE 4 kt – 33%
Saturday Chance Rain Showers 70/54 S 9 kt – 52%
Sunday Chance Rain Showers 67 SW 9 kt – 38%

Source: National Weather Service (office MKX). Forecast issued 0232Z.

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 3WI1. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail

09/27
Dimensions
1,600 x 100 ft
Surface
TURF
FIELD CONDITIONS

Field elevation

Field elevation
825 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2255Z 5:55 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
2255Z (5:55 PM local) → 1218Z (7:18 AM local)
sunset to sunrise (91.209)
Night passenger currency
2355Z (6:55 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

Olson's Airport is in Union Grove, Wisconsin. Field elevation 825 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
TypeSmall airport
CHARTS & AIRSPACE
ICAO / IATA3WI1
RegionWisconsin
CountryUnited States
Coordinates42.6570, -88.0876
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

3WI1 traffic patterns

2026-07-03 to 2026-10-03, 4 days observed · data 2026-10-23

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

Busiest day: Sat · Busiest month: Oct

FLEET MIX
Helicopter 100%

Mostly rotorcraft.

TOP AIRCRAFT TYPES
›CDUS (Helicopter) · ~1 landings/mo
›R44 (Helicopter) · ~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

3WI1 has no on-field report. Nearest reporting station: KENW (8 NM SE, VFR).

KENW Kenosha Regional Airport
8 NM SE
VFR
KRAC John H Batten Airport
14 NM NE
VFR
KUGN Waukegan National Airport
17 NM SE
VFR
KMKE General Mitchell International Airport
19 NM NE
VFR
KUES Waukesha County Airport
24 NM N
VFR
KMWC Lawrence J Timmerman Airport
27 NM N
VFR
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗3WI1 on OurAirports
FREQUENTLY ASKED
Does 3WI1 have a METAR?
No on-field METAR is issued for 3WI1. This page uses the nearest reporting station as a reference.
Does 3WI1 have a TAF?
No TAF is issued directly for 3WI1. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at 3WI1?
3WI1 sits at 825 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for 3WI1?
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.