WxDecoder

0LL4 Weather Flaherty Field

La Salle, IllinoisElevation 664 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KVYS · 4 NM S · More than 1 hour old
No ceiling, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KVYS
WIND
170@4
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 visibility 10 SM. This observation is older than usual, so treat it with extra caution. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly cloudy, low near 51F, 1% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Friday: Chance Showers And Thunderstorms. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Cloudy 51 0 kt – 1%
Monday Mostly Cloudy 69/48 NE 9 kt – 3%
Tuesday Mostly Cloudy 71/54 SE 9 kt – 10%
Wednesday Mostly Sunny 72/57 S 9 kt – 15%
Thursday Slight Chance Rain Showers 77/55 SW 9 kt – 34%
Friday Chance Showers And Thunderstorms 76/56 S 4 kt – 34% Thunderstorms in the forecast
Saturday Chance Rain Showers 72/56 S 4 kt – 54%
Sunday Chance Rain Showers 71 SW 4 kt – 33%

Source: National Weather Service (office LOT). Forecast issued 0343Z.

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 0LL4. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 2,143 ft

09/27
Dimensions
2,143 x 100 ft
Surface
Turf
RWY 09
Traffic patternLeft
RWY 27
Traffic patternLeft

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

FIELD CONDITIONS

Field elevation

Field elevation
664 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2301Z 6:01 PM
Sunrise
1220Z 7:20 AM
Loggable night
2329Z (6:29 PM local) → 1152Z (6:52 AM local)
end of evening to start of morning civil twilight
Position lights required
2301Z (6:01 PM local) → 1220Z (7:20 AM local)
sunset to sunrise (91.209)
Night passenger currency
0001Z (7:01 PM local) → 1120Z (6:20 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

Flaherty Field is in La Salle, Illinois. Field elevation 664 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSmall airport
ManagerGREGG FLAHERTY
Manager phone815-224-2679
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATA0LL4
SectionalCHICAGO
Center (ARTCC)CHICAGO
Flight service (AFSS)KANKAKEE
RegionIllinois
CountryUnited States
Coordinates41.4196, -89.1214
Distance from city2 NM NW
SERVICES & LIGHTING
Control towerNon-towered
Traffic pattern alt800 ft MSL
AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

0LL4 has no on-field report. Nearest reporting station: KVYS (4 NM S, VFR).

KVYS Illinois Valley Regional Airport Walter A Duncan Field
4 NM S
VFR
KSQI Whiteside County Airport - Joseph H Bittorf Field
31 NM NW
VFR
KARR Aurora Municipal Airport
36 NM NE
VFR
KJOT Joliet Regional Airport
43 NM E
VFR
KRFD Chicago Rockford International Airport
47 NM N
VFR
KLOT Lewis University Airport
47 NM E
VFR
AIRPORT REMARKS

Operational remarks

›ROAD RIGHT & LEFT OF CNTRLN.
›FOR CD CTC CHICAGO ARTCC AT 630-906-8921.
›EMAIL ADDRESS: GFSF73@COMCAST.NET (ALL LOWER CASE)
›HAS A 232 FT TURF STOPWAY WEST END.
›YELLOW CONES & GREEN THR LGTS.
›EXISTED PRIOR TO 1959.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗0LL4 on OurAirports
FREQUENTLY ASKED
Does 0LL4 have a METAR?
No on-field METAR is issued for 0LL4. This page uses the nearest reporting station as a reference.
Does 0LL4 have a TAF?
No TAF is issued directly for 0LL4. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at 0LL4?
0LL4 sits at 664 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for 0LL4?
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.