WxDecoder

9IS9 Weather Johnston Airport

Heyworth, IllinoisElevation 785 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KBMI · 9 NM N · 52 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 · KBMI
WIND
180@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 wind from 180° at 4 kt, visibility 10 SM, temperature 13C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly cloudy, low near 51F, 1% chance of precipitation. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing.

DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Cloudy 51 S 4 kt – 1%
Monday Partly Sunny 76/50 SE 4 kt – 4%
Tuesday Partly Sunny 75/53 SSE 9 kt – 2%
Wednesday Mostly Sunny 77/56 S 11 kt 14 kt 3%
Thursday Sunny 80/56 SSW 12 kt – 16%
Friday Slight Chance Rain Showers 79/57 S 9 kt – 19%
Saturday Chance Rain Showers 74/57 S 10 kt – 59%
Sunday Chance Rain Showers 73 SW 9 kt – 42%

Source: National Weather Service (office ILX). Forecast issued 0347Z.

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 9IS9. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail

08/26
Dimensions
2,100 x 70 ft
Surface
TURF
FIELD CONDITIONS

Field elevation

Field elevation
785 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
1218Z 7:18 AM
Loggable night
2329Z (6:29 PM local) → 1150Z (6:50 AM local)
end of evening to start of morning civil twilight
Position lights required
2301Z (6:01 PM local) → 1218Z (7:18 AM local)
sunset to sunrise (91.209)
Night passenger currency
0001Z (7:01 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

Johnston Airport is in Heyworth, Illinois. Field elevation 785 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
TypeSmall airport
CHARTS & AIRSPACE
ICAO / IATA9IS9
RegionIllinois
CountryUnited States
Coordinates40.3345, -88.9554
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

9IS9 traffic patterns

2026-07-24 to 2026-07-24, 1 days observed · data 2026-10-23

Insufficient confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
1
AVG OPS/DAY
2
Operations trend (1 days)

Busiest day: Fri · Busiest month: Jul

FLEET MIX
Turboprop 100%

Mostly turboprop aircraft.

TOP AIRCRAFT TYPES
›AT8T (Turboprop) · ~1 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

9IS9 has no on-field report. Nearest reporting station: KBMI (9 NM N, VFR).

KBMI Central Illinois Regional Airport at Bloomington-Normal
9 NM N
VFR
KDEC Decatur Airport
30 NM S
VFR
KCMI University of Illinois Willard Airport
36 NM SE
VFR
KPIA General Wayne A. Downing Peoria International Airport
39 NM NW
VFR
KSPI Abraham Lincoln Capital Airport
44 NM SW
VFR
KMTO Coles County Memorial Airport
60 NM SE
VFR
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗9IS9 on OurAirports
FREQUENTLY ASKED
Does 9IS9 have a METAR?
No on-field METAR is issued for 9IS9. This page uses the nearest reporting station as a reference.
Does 9IS9 have a TAF?
No TAF is issued directly for 9IS9. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at 9IS9?
9IS9 sits at 785 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for 9IS9?
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.