WxDecoder

IS71 Weather Koch Airport

Durand, IllinoisElevation 800 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KJVL · 12 NM NE · 8 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 · KJVL
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 from 190° at 4 kt, visibility 10 SM, temperature 16C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly cloudy then patchy fog, low near 51F, 3% 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 then Patchy Fog 51 NNW 9 kt – 3%
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 13 kt – 32%
Thursday Chance Showers And Thunderstorms 73/52 SW 9 kt – 32% Thunderstorms in the forecast
Friday Chance Rain Showers 72/55 SE 9 kt – 39%
Saturday Rain Showers Likely 69/54 SSE 9 kt – 57%
Sunday Chance Rain Showers 68 SW 9 kt – 33%

Source: National Weather Service (office LOT). Forecast issued 0153Z.

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 IS71. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail

08/26
Dimensions
2,450 x 70 ft
Surface
TURF
FIELD CONDITIONS

Field elevation

Field elevation
800 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2259Z 5:59 PM
Sunrise
1222Z 7:22 AM
Loggable night
2328Z (6:28 PM local) → 1153Z (6:53 AM local)
end of evening to start of morning civil twilight
Position lights required
2259Z (5:59 PM local) → 1222Z (7:22 AM local)
sunset to sunrise (91.209)
Night passenger currency
2359Z (6:59 PM local) → 1122Z (6:22 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

Koch Airport is in Durand, Illinois. Field elevation 800 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
TypeSmall airport
CHARTS & AIRSPACE
ICAO / IATAIS71
RegionIllinois
CountryUnited States
Coordinates42.4592, -89.1994
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

IS71 has no on-field report. Nearest reporting station: KJVL (12 NM NE, VFR).

KJVL Southern Wisconsin Regional Airport
12 NM NE
VFR
KRFD Chicago Rockford International Airport
16 NM S
VFR
KFEP Albertus Airport
21 NM SW
VFR
KMSN Dane County Regional Truax Field
41 NM N
VFR
KSQI Whiteside County Airport - Joseph H Bittorf Field
48 NM SW
VFR
KARR Aurora Municipal Airport
52 NM SE
VFR
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗IS71 on OurAirports
FREQUENTLY ASKED
Does IS71 have a METAR?
No on-field METAR is issued for IS71. This page uses the nearest reporting station as a reference.
Does IS71 have a TAF?
No TAF is issued directly for IS71. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at IS71?
IS71 sits at 800 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for IS71?
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.