ATIS Alerts

Weidner Airport (4IS9) Area Aviation Weather & Runway Winds

Aviation weather near Weidner Airport in Bunker Hill, IL, decoded from the nearest reporting station (KALN): conditions, runway crosswinds, and free Telegram airport alerts.

Weidner Airport (4IS9) is a general aviation airport serving pilots in and around Bunker Hill, IL at 667 ft. 4IS9 has no weather station of its own. Conditions here are decoded from KALN, about 12 nm away, the nearest reporting station, and local conditions can differ. Its 2 runways (09, 27), longest 2,769 ft, are checked against the current wind in the crosswind table below. The nearest TAF is issued for KSTL. Track it in the ATIS Alerts Telegram bot to get alerts read from KALN, the station this page is based on.

VFR
Observed 0655Z (1:55 AM CDT)live · refreshes every 60s

No weather station at this airport: showing the nearest station KALN, 12.4 nm away.

Wind
Calm
Visibility
10+ sm
Ceiling
Unlimited
Altimeter
29.98"
Temp / Dew
70°F / 21°C
dew 67°F / 20°C

Wind calm, visibility 10+ statute miles, no cloud data, temperature 21°C (70°F), altimeter 29.98 inHg. Conditions are Visual Flight Rules (VFR).

Raw METAR
METAR KALN 130655Z AUTO 00000KT 10SM CLR 21/20 A2998 RMK AO2 T02120196

What changed at KALN (nearest station)?

Since the 0635Z (1:35 AM CDT) report, compared automatically against the latest METAR.

No significant changes since the 0635Z report, conditions are holding steady.

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Current pilot readout for 4IS9

Based on the nearest station (KALN), 4IS9 is currently VFR with calm winds, visibility 10+ statute miles, and no ceiling reported. Density altitude is approximately 1,500 ft (field elevation 667 ft). 4IS9 does not publish a TAF. The nearest TAF station is KSTL, about 28 nm away.

⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →

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Runway wind check

Estimated head/tailwind and crosswind for each runway end from the current reported wind.

Use this section to quickly compare current wind alignment across available runways at 4IS9. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.

Current wind is calm: calm wind is not a factor for runway selection, and with no wind there is no head/tail or crosswind component to compute. Live numbers return automatically once a report includes a wind direction.

RunwayHead / TailCrosswind
09--
27--

Open the crosswind calculator to try your own wind and runway numbers →

24-hour trend

Wind, ceiling and flight category over the last 24 hours.

Wind (kt)Gusts (kt)Bottom strip, flight category:VFRMVFRIFRLIFRNo report
061207Z17Z06Z

Over the last 24 h: wind 00 kt, ceiling unlimitedunlimited.

4IS9 weather radar

Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.

Live weather radar around Weidner Airport in Bunker Hill, IL: the NOAA/NWS NEXRAD composite updates about every five minutes, with NOAA lightning strike density overlaid. The loop plays the past 50 minutes, then continues into a future-radar forecast (+1 to +4 hours, NOAA HRRR model) so you can see where precipitation around 4IS9 is headed.

Loading…
Loading radar…

Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap

Forecast frames (amber label) are HRRR model guidance, not observed radar. Lightning strike density appears as a blue-white glow when strikes are detected in view. Radar and lightning coverage are limited in parts of Alaska, Hawaii, and offshore areas. Not for navigation.

Recent aviation weather trends at 4IS9

From ATIS Alerts' hourly weather history.

Over the past 24 hours, the nearest station KALN reported mostly VFR across 43 observations, with 4 flight-category changes. The lowest ceiling was 100 ft. Wind most often came from the W.

Last 24 hours
VFR 60%MVFR 12%IFR 2%LIFR 26%
Wind avg/max: 2/8 kt
Max gust: -
Lowest ceiling: 100 ft
Lowest vis: -
Prevailing wind: W
Category changes: 4

Most recent change: MVFRVFR

Last 7 days
VFR 84%MVFR 5%IFR 6%LIFR 4%
Wind avg/max: 4/12 kt
Max gust: 17 kt
Lowest ceiling: 100 ft
Lowest vis: 0.25 sm
Prevailing wind: E
Category changes: 22

Most recent change: MVFRVFR

Active Runway - past 30 days
09/27
100%

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Airport facts

Reference data from the OurAirports dataset.

Type
General aviation airport
FAA LID
4IS9
City
Bunker Hill
State
Illinois
Country
United States
Elevation
667 ft
Coordinates
39.0859, -89.9589
Runways
2
Longest runway
2,769 ft
Weather reporting
Nearest station KALN
TAF
Nearest KSTL
Time zone
America/Chicago
Next sunset
16h 59m

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Nearby airports

Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.

RC flying fields nearby

AMA model-aircraft club fields around this airport: live wind, crosswind & flyability on each page.

All RC flying fields →

See all Illinois airports →

4IS9 weather: frequently asked

What runways are available at 4IS9?+

4IS9 has 2 runways: 09, 27; the longest is 2,769 ft. This page computes the live crosswind for each runway end from the current wind.

Where does the weather shown for 4IS9 come from?+

Weidner Airport does not have its own weather station. Conditions shown here come from the nearest reporting station, KALN, about 12 nm away, close enough for situational awareness, but local conditions at 4IS9 can differ.

Does 4IS9 have a TAF?+

No. 4IS9 does not publish its own TAF. The nearest TAF station is KSTL, about 28 nm away.

Does 4IS9 broadcast D-ATIS?+

No. 4IS9 does not broadcast D-ATIS. Alerts for 4IS9 from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR (via the nearest reporting station) instead.

Pilot PIREPs for Weidner Airport (4IS9)

Community-submitted

Community-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.

Read recent community-submitted pilot notes for Weidner Airport, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.

⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.

No Pilot PIREPs have been submitted for 4IS9 yet. Recently flew here? Help the next pilot by leaving a quick airport note.

Pilot PIREPs are community pilot notes for situational awareness only, not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.

From the ATIS Alerts team

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