WxDecoder

LL75 Weather Chester Wyss Airport

Rock City, IllinoisElevation 920 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KFEP · 12 NM SW · 9 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 · KFEP
WIND
190@7
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 190° at 7 kt, visibility 10 SM, temperature 15.4C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly cloudy, low near 50F, 3% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Thursday: Chance Showers And Thunderstorms. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Cloudy 50 NW 4 kt – 3%
Monday Mostly Cloudy 63/45 NE 9 kt – 3%
Tuesday Partly Sunny 71/54 SE 9 kt – 7%
Wednesday Mostly Sunny 73/56 S 13 kt – 34%
Thursday Chance Showers And Thunderstorms 73/53 SW 9 kt – 34% Thunderstorms in the forecast
Friday Chance Rain Showers 73/55 SE 9 kt – 43%
Saturday Rain Showers Likely 70/54 SE 9 kt – 58%
Sunday Chance Rain Showers 68 SW 9 kt – 32%

Source: National Weather Service (office DVN). Forecast issued 0243Z.

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 LL75. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail

N/S
Dimensions
1,900 x 100 ft
Surface
TURF
FIELD CONDITIONS

Field elevation

Field elevation
920 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2300Z 6:00 PM
Sunrise
1223Z 7:23 AM
Loggable night
2329Z (6:29 PM local) → 1154Z (6:54 AM local)
end of evening to start of morning civil twilight
Position lights required
2300Z (6:00 PM local) → 1223Z (7:23 AM local)
sunset to sunrise (91.209)
Night passenger currency
0000Z (7:00 PM local) → 1123Z (6:23 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

Chester Wyss Airport is in Rock City, Illinois. Field elevation 920 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
TypeSmall airport
CHARTS & AIRSPACE
ICAO / IATALL75
RegionIllinois
CountryUnited States
Coordinates42.4250, -89.4501
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

LL75 has no on-field report. Nearest reporting station: KFEP (12 NM SW, VFR).

KFEP Albertus Airport
12 NM SW
VFR
KRFD Chicago Rockford International Airport
21 NM SE
VFR
KJVL Southern Wisconsin Regional Airport
22 NM NE
VFR
KSQI Whiteside County Airport - Joseph H Bittorf Field
42 NM S
VFR
KMSN Dane County Regional Truax Field
43 NM N
VFR
KCWI Clinton Municipal Airport
53 NM SW
VFR
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗LL75 on OurAirports
FREQUENTLY ASKED
Does LL75 have a METAR?
No on-field METAR is issued for LL75. This page uses the nearest reporting station as a reference.
Does LL75 have a TAF?
No TAF is issued directly for LL75. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at LL75?
LL75 sits at 920 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for LL75?
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.