KC77 Weather Poplar Grove Airport

Poplar Grove, IllinoisElevation 858 ftSmall airport

OFF-FIELD REFERENCE

Nearest report: KRFD · 14 NM SW · 17 min old

Ceiling 25,000 ft, visibility 10 SM.

No on-field report, so no field flight category. Conditions at the field may differ.

OFF-FIELD REFERENCE · KRFD

WIND

Calm

no steady wind

VISIBILITY

10 SM

16.1 km

CEILING

25,000 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 calm, visibility 10 SM, temperature 13C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly cloudy then patchy fog, low near 50F, 2% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES

Thunderstorms in the forecastWeather.gov

Thursday: Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms. Watch for developing convection and plan alternates.

Day	Conditions	Temp F	Wind	Gusts	Precip	Pilot note
Tonight	Mostly Cloudy then Patchy Fog	50	S 9 kt	–	2%
Monday	Patchy Fog then Mostly Cloudy	63/47	ENE 9 kt	17 kt	3%
Tuesday	Mostly Cloudy	67/54	SE 9 kt	–	10%
Wednesday	Mostly Sunny	71/56	S 9 kt	–	24%
Thursday	Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms	74/53	SW 9 kt	–	29%	Thunderstorms in the forecast
Friday	Chance Rain Showers	73/55	SE 9 kt	–	39%
Saturday	Chance Rain Showers	70/54	SSE 9 kt	–	55%
Sunday	Chance Rain Showers	68	SW 9 kt	–	33%

Source: National Weather Service (office LOT). Forecast issued 0210Z.

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

3 runways

WIND

No on-field weather data

No reporting weather station on the field, so wind components cannot be computed. See nearby stations below.

RUNWAYS

Runway detail & declared distances

3 runways · longest 3,773 ft

17/35

Dimensions

2,467 x 150 ft

Surface

Turf (good)

RWY 17176°T

Displaced threshold220 ft

RWY 35356°T

09/27

Dimensions

2,709 x 200 ft

Surface

Turf (good)

RWY 0990°T

Traffic patternLeft

RWY 27270°T

Traffic patternLeft

12/30

Dimensions

3,773 x 50 ft

Surface

Asphalt (good)

Edge lights

LOW

RWY 12123°T

Displaced threshold500 ft

Traffic patternLeft

RWY 30303°T

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

858 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset

2258Z 5:58 PM

Sunrise

1220Z 7:20 AM

Loggable night

2327Z (6:27 PM local) → 1152Z (6:52 AM local)

end of evening to start of morning civil twilight

Position lights required

2258Z (5:58 PM local) → 1220Z (7:20 AM local)

sunset to sunrise (91.209)

Night passenger currency

2358Z (6:58 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

Poplar Grove Airport is in Poplar Grove, Illinois. Field elevation 858 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT

OwnershipPrivately owned

UseOpen to the public

TypeSmall airport

ManagerBKAKE . THOMAS

Manager phone815-544-3471

AttendedDaily, SR–SS

CHARTS & AIRSPACE

ICAO / IATAKC77

SectionalCHICAGO

Center (ARTCC)CHICAGO

Flight service (AFSS)KANKAKEE

RegionIllinois

CountryUnited States

Coordinates42.3229, -88.8363

Distance from city3 NM S

SERVICES & LIGHTING

Fuel100LL

Control towerNon-towered

Field lightingSunset to sunrise

BeaconSunset to sunrise · White-green (lighted land airport)

CTAF122.800

UNICOM122.800

FREQUENCIES

Communications

121

ROCKFORD APP/DEP

A/D

122.8

CTAF/UNICOM

UNIC

122.800

CTAF

122.800

UNICOM

Not all tower/ground/approach frequencies are in our datasets. Verify with the FAA Chart Supplement.

AIRCRAFT ACTIVITY

KC77 traffic patterns

2026-06-12 to 2026-10-23, 62 days observed · data 2026-10-23

High confidence

TRAFFIC VOLUME (30-DAY)

AVG LANDINGS/DAY

6.9

AVG OPS/DAY

12.1

Operations trend (16 days)

Busiest day: Thu · Busiest month: Oct

FLEET MIX

Piston single 69%Unknown 22%Twin 4%Turboprop 3%

Mostly small piston aircraft.

TOP AIRCRAFT TYPES

›C172 (Piston single) · ~19 landings/mo

›C152 (Piston single) · ~8 landings/mo

›C180 (Piston single) · ~5 landings/mo

›C170 (Piston single) · ~4 landings/mo

›UNKN (Unknown) · ~4 landings/mo

LIKELY BASED AIRCRAFT

Low-confidence estimate

Aircraft likely based near this airport (estimate), mostly single-engine piston aircraft.

›C180 (Piston single)

›C152 (Piston single)

›C172 (Piston single)

›P28R (Unknown)

›C170 (Piston single)

This is an estimate based on repeated flight patterns, not registration data. Do not rely on it to identify specific aircraft or owners.

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

KC77 has no on-field report. Nearest reporting station: KRFD (14 NM SW, VFR).

KRFD Chicago Rockford International Airport

14 NM SW

VFR

KJVL Southern Wisconsin Regional Airport

20 NM NW

VFR

KFEP Albertus Airport

33 NM W

VFR

KDPA Dupage Airport

36 NM SE

VFR

KARR Aurora Municipal Airport

37 NM SE

VFR

KUGN Waukegan National Airport

43 NM E

VFR

AIRPORT REMARKS

Operational remarks

›APCH SLOPE IS 20:1 AT DSPLCD THR.

›CLSD WHEN SNOW COVERED EXCP TO SKI ACFT.

›CALM WIND RWY.

›ALT BLAKE THOMAS

›THIS AIRPORT HAS BEEN SURVEYED BY THE NATIONAL GEODETIC SURVEY.

›CAUTION: IMPAIRED SIGHT CLNCS BTN RWY ENDS DUE TO ROLLING TRRN.

›FOR CD CTC CHICAGO ARTCC AT 630-906-8921.

›NSTD LIRL DUE TO SPACING, INTST & NON-FRANGIBLE MOUNTINGS.

›APCH SLOPE IS 32:1 AT DSPLCD THR.

›MKD WITH THREE CONES ON EACH SIDE OF RWY.

›MKD WITH WHITE BARS UNDER NUMBERS; NO ARROWS.

›EMAIL ADDRESS: STEVE@POPLARGROVEAIRMOTIVE.COM (ALL LOWER CASE)

›RWY 12/30 MARKINGS POOR.

OFFICIAL LINKS & SOURCES

↗Search NOTAMs (official FAA NOTAM Search)

↗Wikipedia

↗KC77 on OurAirports

FREQUENTLY ASKED

Does KC77 have a METAR?

No on-field METAR is issued for KC77. This page uses the nearest reporting station as a reference.

Does KC77 have a TAF?

No TAF is issued directly for KC77. Use the nearest TAF-issuing field as a planning reference.

What is the field elevation at KC77?

KC77 sits at 858 ft MSL, which factors into the density-altitude estimate on this page.

Is this an official preflight weather briefing for KC77?

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.