Airport information
- FAA LID
- 4WI1
- Coordinates
- 43.4833, -89.1834
- Elevation
- 840 ft MSL
- Magnetic variation
- 0E
- Sectional chart
- CHICAGO
- Airport use
- Private
- Control tower
- Yes
- ARTCC
- CHICAGO (ZAU)
- Flight service (FSS)
- GREEN BAY
- Attendance
- UNATNDD
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1989/07
- Distance from city
- 1 E
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-20
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:40 AM | 09:40Z |
| Sunrise | 05:16 AM | 10:16Z |
| Sunset | 08:41 PM | 01:41Z |
| Evening civil twilight Loggable night begins | 09:17 PM | 02:17Z |
Loggable night (§1.1)
09:17 PM → 04:40 AM
Night currency (§61.57)
09:41 PM → 04:16 AM
Plan a flight from 4WI1
Runway 06/24
2,600 ft × 70 ft · Turf 06
- Heading
- n/a
- Traffic pattern
- Left
24
- Heading
- n/a
- Traffic pattern
- Left
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| MSN · Madison | VORTAC | 108.60 | r016° / 21.4 NM |
| DLL · Dells | VORTAC | 117.00 | r096° / 25.6 NM |
VFR sectional
No published instrument procedures or Chart Supplement for 4WI1. VFR sectional link above.
Ownership & management
Owner
DAVID BANCROFT
W3798 OLD B RD., RIO, WI
(920) 319-2009
Manager
M. JAMES BANCROFT
W3758 OLD B RD., RIO, WI
920-348-5738
Remarks FAA
- FILED FOR RECORD PURPOSES ONLY.
- FOR CD CTC CHICAGO ARTCC AT 630-906-8921.
Nearby airports
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open 4WI1 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator.