WxDecoder

39LL Weather Sullivan Airport

Hamilton, IllinoisElevation 635 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KEOK · 7 NM NW · 25 min old
Ceiling 4,200 ft, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KEOK
WIND
200@4
steady
VISIBILITY
10 SM
16.1 km
CEILING
4,200 ft
lowest BKN/OVC
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 170° at 3 kt, visibility 10 SM, temperature 15C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly cloudy, low near 55F, 1% 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 55 S 4 kt – 1%
Monday Partly Sunny 76/54 S 4 kt – 3%
Tuesday Mostly Cloudy 75/57 S 9 kt – 11%
Wednesday Mostly Sunny 78/59 S 9 kt – 18%
Thursday Chance Showers And Thunderstorms 80/59 SW 9 kt – 34% Thunderstorms in the forecast
Friday Chance Rain Showers 79/60 S 9 kt – 36%
Saturday Rain Showers Likely 74/58 S 9 kt – 61%
Sunday Slight Chance Rain Showers 73 W 9 kt – 21%

Source: National Weather Service (office DVN). Forecast issued 0359Z.

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 39LL. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 2,500 ft

09/27
Dimensions
2,500 x 100 ft
Surface
Turf
RWY 09
RWY 27

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
635 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2311Z 6:11 PM
Sunrise
1227Z 7:27 AM
Loggable night
2339Z (6:39 PM local) → 1200Z (7:00 AM local)
end of evening to start of morning civil twilight
Position lights required
2311Z (6:11 PM local) → 1227Z (7:27 AM local)
sunset to sunrise (91.209)
Night passenger currency
0011Z (7:11 PM local) → 1127Z (6:27 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

Sullivan Airport is in Hamilton, Illinois. Field elevation 635 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSmall airport
ManagerJIM SULLIVAN
Manager phone(217) 440-8172
AttendedIREG
CHARTS & AIRSPACE
ICAO / IATA39LL
SectionalCHICAGO
Center (ARTCC)KANSAS CITY
Flight service (AFSS)SAINT LOUIS
RegionIllinois
CountryUnited States
Coordinates40.4014, -91.3031
Distance from city1 NM WSW
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

39LL has no on-field report. Nearest reporting station: KEOK (7 NM NW, VFR).

KEOK Keokuk Municipal Airport
7 NM NW
VFR
KFSW Fort Madison Municipal Airport
16 NM N
VFR
KBRL Southeast Iowa Regional Airport
24 NM N
VFR
KUIN Quincy Regional Airport Baldwin Field
28 NM S
VFR
KMQB Macomb Municipal Airport
31 NM E
VFR
KMPZ Mount Pleasant Municipal Airport
34 NM N
VFR
AIRPORT REMARKS

Operational remarks

›FOR CD CTC KANSAS CITY ARTCC AT 913-254-8508.
›PRVDD CLEAR 20:1 APCHS & CLEAR OBSTACLE FREE ZONE.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗39LL on OurAirports
FREQUENTLY ASKED
Does 39LL have a METAR?
No on-field METAR is issued for 39LL. This page uses the nearest reporting station as a reference.
Does 39LL have a TAF?
No TAF is issued directly for 39LL. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at 39LL?
39LL sits at 635 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for 39LL?
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.