WxDecoder

IL21 Weather Ascension Mercy Heliport

Aurora, IllinoisElevation 700 ftHeliport
OFF-FIELD REFERENCE
Nearest report: KARR · 7 NM W · 49 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 · KARR
WIND
Calm
no steady wind
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 calm, visibility 10 SM, temperature 13C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly cloudy, low near 50F, 1% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Thursday: Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Cloudy 50 S 4 kt – 1%
Monday Patchy Fog then Mostly Cloudy 64/49 NE 9 kt 17 kt 3%
Tuesday Mostly Cloudy 68/54 SE 9 kt – 9%
Wednesday Mostly Sunny 71/56 S 9 kt – 15%
Thursday Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms 76/54 SW 9 kt – 25% Thunderstorms in the forecast
Friday Chance Rain Showers 75/56 SSE 4 kt – 34%
Saturday Chance Rain Showers 72/56 SSE 4 kt – 52%
Sunday Chance Rain Showers 70 SW 9 kt – 38%

Source: National Weather Service (office LOT). Forecast issued 0141Z.

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 IL21. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 75 ft

H1
Dimensions
50 x 50 ft
Surface
Asphalt
RWY H1
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
700 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2257Z 5:57 PM
Sunrise
1218Z 7:18 AM
Loggable night
2325Z (6:25 PM local) → 1149Z (6:49 AM local)
end of evening to start of morning civil twilight
Position lights required
2257Z (5:57 PM local) → 1218Z (7:18 AM local)
sunset to sunrise (91.209)
Night passenger currency
2357Z (6:57 PM local) → 1118Z (6:18 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

Ascension Mercy Heliport is in Aurora, Illinois. Field elevation 700 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeHeliport
ManagerSCOTT VANCE
Manager phone630-859-2222
AttendedContinuous (24 hours)
CHARTS & AIRSPACE
ICAO / IATAIL21
SectionalCHICAGO
Center (ARTCC)CHICAGO
Flight service (AFSS)KANKAKEE
RegionIllinois
CountryUnited States
Coordinates41.7858, -88.3245
Distance from city1 NM NW
SERVICES & LIGHTING
Control towerNon-towered
BeaconSunset to sunrise · White-green-yellow (heliport)
AIRCRAFT ACTIVITY

IL21 traffic patterns

2026-07-11 to 2026-07-12, 2 days observed · data 2026-10-23

Insufficient confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
0
AVG OPS/DAY
1
Activity trend over 2 days: flat, from 1 to 1 operations per dayOperations trend (2 days)

Busiest day: Sat · Busiest month: Jul

FLEET MIX

Mostly jet aircraft.

TOP AIRCRAFT TYPES
›E550 (Jet) · ~0 landings/mo
›GX (Unknown) · ~0 landings/mo
Data limitations (4)
›ADS-B coverage is incomplete; counts are an observed lower bound, not official totals.
›Some aircraft do not transmit usable ADS-B and are not counted.
›Aircraft types and based estimates are inferred and may be wrong.
›This is not official ATC, FAA, or airport data.
NEARBY AIRPORTS

Weather reference stations

IL21 has no on-field report. Nearest reporting station: KARR (7 NM W, VFR).

KARR Aurora Municipal Airport
7 NM W
VFR
KDPA Dupage Airport
8 NM NE
VFR
KLOT Lewis University Airport
15 NM SE
VFR
KJOT Joliet Regional Airport
17 NM SE
VFR
KORD Chicago O'Hare International Airport
22 NM NE
VFR
KMDW Chicago Midway International Airport
26 NM E
VFR
AIRPORT REMARKS

Operational remarks

›(E111-1) PER AGREEMENT WITH GADO 3, PLANNED SOD AREAS ARE IMPLEMENTED FOR EMERGENCY LANDING AREAS; PROPOSED HELIPORT IS DESIGNED IN ACCORDANCE WITH SKETCH.
›PRVDD ALL APCH/DEP RTE HELI OPNS ARE CONDD IN AN AREA FM 160-190, 350-010 DEG CLKWS USING TD PAD AS CNTR OF A COMPASS ROSE. TKOF/LNDG AREA APROPLY MKD & LGTD, NON-OBSTG WIND INDCR MAINTD ADJ TO TKOF/LNDG AREA.
›MEDICAL USE.
›FOR CD CTC CHICAGO APCH AT 847-289-0926.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗IL21 on OurAirports
FREQUENTLY ASKED
Does IL21 have a METAR?
No on-field METAR is issued for IL21. This page uses the nearest reporting station as a reference.
Does IL21 have a TAF?
No TAF is issued directly for IL21. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at IL21?
IL21 sits at 700 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for IL21?
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.