Chester Wyss Airport (LL75) Area Aviation Weather & Runway Winds
Aviation weather near Chester Wyss Airport in Rock City, IL, decoded from the nearest reporting station (KFEP) — conditions, runway crosswinds, and free Telegram airport alerts.
Chester Wyss Airport (LL75) is a general aviation airport serving pilots in and around Rock City, IL at 920 ft. LL75 has no weather station of its own — conditions here are decoded from KFEP, about 12 nm away, the nearest reporting station, and local conditions can differ. Its 2 runways (N, S) — longest 1,900 ft — are checked against the current wind in the crosswind table below. The nearest TAF is issued for KRFD. Track it in the ATIS Alerts Telegram bot to get alerts read from KFEP, the station this page is based on.
No weather station at this airport — showing the nearest station KFEP, 12.2 nm away.
Wind calm, visibility 10+ statute miles, no cloud data, temperature 20°C (68°F), altimeter 29.96 inHg. Conditions are Visual Flight Rules (VFR).
METAR KFEP 290335Z AUTO 00000KT 10SM CLR 20/18 A2996 RMK AO2 T01990176
What changed at KFEP (nearest station)?
Since the 0315Z (10:15 PM CDT) report — compared automatically against the latest METAR.
No significant changes since the 0315Z report — conditions are holding steady.
This is exactly what ATIS Alerts watches for you — get a Telegram message when LL75's weather changes, free →
Current pilot readout for LL75
Based on the nearest station (KFEP), LL75 is currently VFR with calm winds, visibility 10+ statute miles, and no ceiling reported. Density altitude is approximately 1,700 ft (field elevation 920 ft). LL75 does not publish a TAF — the nearest TAF station is KRFD, about 21 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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Track LL75 free on TelegramRunway 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 LL75. 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.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| N | 1,900 ft | TURF | — | — |
| S | 1,900 ft | TURF | — | — |
Open the crosswind calculator — try your own wind and runway numbers →
24-hour trend
Wind, ceiling and flight category over the last 24 hours.
Over the last 23 h: wind 6→0 kt, ceiling unlimited → unlimited.
LL75 weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast — drag to pan, tap ⚡ to toggle lightning.
Live weather radar around Chester Wyss Airport in Rock City, 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 LL75 is headed.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © OpenStreetMap © CARTO
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.
Pilot reports (PIREPs) within 100 NM of LL75
Reported by pilots in flight over the past 6 hours — via aviationweather.gov.
Show raw report
VOK UA /OV VOK/TM 0217/FL130/TP C441/TB NEG
VOK UAHeader — reporting station and UA: a routine pilot report.OV VOKLocation — fix or navaid, optionally with a radial and distance in NM.TM 0217Reported at 02:17 UTC.FL130Altitude: 13,000 ft MSL.TP C441Aircraft type reporting.TB NEGTurbulence: none reported.Show raw report
PWK UA /OV OBK/TM 0213/FL230/TP B763/TB NEG
PWK UAHeader — reporting station and UA: a routine pilot report.OV OBKLocation — fix or navaid, optionally with a radial and distance in NM.TM 0213Reported at 02:13 UTC.FL230Altitude: 23,000 ft MSL.TP B763Aircraft type reporting.TB NEGTurbulence: none reported.Show raw report
ENW UA /OV ENW/TM 0208/FL160/TP CRJ2/TB NEG/RM DURC
ENW UAHeader — reporting station and UA: a routine pilot report.OV ENWLocation — fix or navaid, optionally with a radial and distance in NM.TM 0208Reported at 02:08 UTC.FL160Altitude: 16,000 ft MSL.TP CRJ2Aircraft type reporting.TB NEGTurbulence: none reported.RM DURCRemarks.Show raw report
MLI UA /OV MZV/TM 0207/FL430/TP G280/TB NEG
MLI UAHeader — reporting station and UA: a routine pilot report.OV MZVLocation — fix or navaid, optionally with a radial and distance in NM.TM 0207Reported at 02:07 UTC.FL430Altitude: 43,000 ft MSL.TP G280Aircraft type reporting.TB NEGTurbulence: none reported.Show raw report
MSN UA /OV MSN/TM 0206/FL190/TP BCS1/TB NEG
MSN UAHeader — reporting station and UA: a routine pilot report.OV MSNLocation — fix or navaid, optionally with a radial and distance in NM.TM 0206Reported at 02:06 UTC.FL190Altitude: 19,000 ft MSL.TP BCS1Aircraft type reporting.TB NEGTurbulence: none reported.Show raw report
C75 UA /OV BDF/TM 0206/FL330/TP B739/TB NEG
C75 UAHeader — reporting station and UA: a routine pilot report.OV BDFLocation — fix or navaid, optionally with a radial and distance in NM.TM 0206Reported at 02:06 UTC.FL330Altitude: 33,000 ft MSL.TP B739Aircraft type reporting.TB NEGTurbulence: none reported.Show raw report
MSN UA /OV C47/TM 0205/FL200/TP E75S/TB NEG
MSN UAHeader — reporting station and UA: a routine pilot report.OV C47Location — fix or navaid, optionally with a radial and distance in NM.TM 0205Reported at 02:05 UTC.FL200Altitude: 20,000 ft MSL.TP E75SAircraft type reporting.TB NEGTurbulence: none reported.Show raw report
JOT UA /OV JOT180030/TM 0123/FL210/TP B39M/TB NEG
JOT UAHeader — reporting station and UA: a routine pilot report.OV JOT180030Location — fix or navaid, optionally with a radial and distance in NM.TM 0123Reported at 01:23 UTC.FL210Altitude: 21,000 ft MSL.TP B39MAircraft type reporting.TB NEGTurbulence: none reported.⚠️ PIREPs are unverified pilot reports. Not for operational use — conditions change between reports.
Recent aviation weather trends at LL75
From ATIS Alerts' hourly weather history.
Over the past 24 hours, the nearest station KFEP reported mostly VFR across 69 observations, with 4 flight-category changes. The strongest gust reached 19 kt, the lowest ceiling was 1,300 ft. Wind most often came from the NE.
Most recent change: MVFR → VFR
Most recent change: MVFR → VFR
- N/S
- 100%
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Airport facts
Reference data from the OurAirports dataset.
- Type
- General aviation airport
- FAA LID
- LL75
- City
- Rock City
- State
- Illinois
- Country
- United States
- Elevation
- 920 ft
- Coordinates
- 42.4250, -89.4501
- Runways
- 2
- Longest runway
- 1,900 ft
- Weather reporting
- Nearest station KFEP
- TAF
- Nearest KRFD
- Time zone
- America/Chicago
- Next sunset
- 21h 33m
Run a flight school, FBO, or club here? Embed LL75's live status on your website — free →
Nearby airports
Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.
Within 25 NM
10 airports+4 more within 25 NM
25–50 NM
6 airports50–100 NM
8 airports+2 more within 100 NM
RC flying fields nearby
AMA model-aircraft club fields around this airport — live wind, crosswind & flyability on each page.
- Cedarville Community Center — Cedarville, IL · 10 mi
- Freeport RC Modelers Club - Oppold / Blumendahl Rd. — Freeport, IL · 12 mi
- Rock Valley RC Flyers - Harrison Rd — Rockford, IL · 16 mi
LL75 weather — frequently asked
What runways are available at LL75?+
LL75 has 2 runways — N, S; the longest is 1,900 ft. This page computes the live crosswind for each runway end from the current wind.
Where does the weather shown for LL75 come from?+
Chester Wyss Airport does not have its own weather station. Conditions shown here come from the nearest reporting station, KFEP, about 12 nm away — close enough for situational awareness, but local conditions at LL75 can differ.
Does LL75 have a TAF?+
No — LL75 does not publish its own TAF. The nearest TAF station is KRFD, about 21 nm away.
Does LL75 broadcast D-ATIS?+
No — LL75 does not broadcast D-ATIS. Alerts for LL75 from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR (via the nearest reporting station) instead.
Pilot PIREPs for Chester Wyss Airport (LL75)
Community-submittedCommunity-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.
Read recent community-submitted pilot notes for Chester Wyss 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 LL75 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.
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⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
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