Airport information
- FAA LID
- 20WI
- Coordinates
- 44.0214, -89.0793
- Elevation
- 800 ft MSL
- Magnetic variation
- 0W
- Sectional chart
- GREEN BAY
- Airport use
- Private
- Control tower
- No
- ARTCC
- CHICAGO (ZAU)
- Flight service (FSS)
- GREEN BAY
- Attendance
- UNATNDD
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1978/08
- Distance from city
- 1 SE
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:37 AM | 09:37Z |
| Sunrise | 05:13 AM | 10:13Z |
| Sunset | 08:43 PM | 01:43Z |
| Evening civil twilight Loggable night begins | 09:19 PM | 02:19Z |
Plan a flight from 20WI
Traffic pattern
- Landing
- Rwy NW
- Pattern
- left (turns left)
- TPA
- 1,800 ft MSL (≈1,000 AGL)
Enter the left downwind for Rwy NW at 1,800 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway NW/SE
1,800 ft × 40 ft · Turf- Heading
- n/a
- Traffic pattern
- Left
- Heading
- n/a
- Traffic pattern
- Left
| Runway | Length | Your margin |
|---|---|---|
| NW/SE | 1,800 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| OSH · Oshkosh | VORTAC | 111.80 | r273° / 22.7 NM |
| STE · Stevens Point | VORTAC | 110.60 | r149° / 36.8 NM |
VFR sectional
No published instrument procedures or Chart Supplement for 20WI. VFR sectional link above.
Ownership & management
Remarks FAA
- PROVIDED ALL AERONAUTICAL OPERATIONS ARE CONDUCTED IN ACCORDANCE WITH LETTER OF AGREEMENT BETWEEN HARJU AND BUZZARD'S ROOST AIRPORTS.
- OWNER DESIRES ARPT NOT BE CHARTED.
- 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 20WI in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
About 20WI
Harju Airport (20WI) is an airport in Redgranite, WI, at 800 ft MSL. It has 1 runway, the longest 1,800 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 20WI, refreshed from the Aviation Weather Center and FAA NASR.
Does 20WI have a control tower?
No. Harju Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at 20WI?
Harju Airport has 1 runway; the longest is 1,800 ft. See the Runways tab for headings, surface, and lighting.
Where is 20WI?
Harju Airport is in Redgranite, WI, at an elevation of 800 ft MSL. Coordinates: 44.0214, -89.0793.
Fly out of 20WI often?
Save 20WI as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.