Decatur Airport (KDEC) Aviation Weather, METAR, TAF & ATIS Alerts
Live aviation weather for Decatur Airport in Decatur, IL, including METAR, TAF, flight category, wind, visibility, ceiling, altimeter, runway crosswinds, and Telegram airport alerts.
Decatur Airport (KDEC) is a regional airport serving Decatur, IL at 682 ft. KDEC reports its own METAR and publishes a TAF — decoded live on this page as flight category, wind, visibility, ceiling and altimeter. Its 6 runways (06, 12, 18, 24) — longest 8,496 ft — are checked against the current wind in the crosswind table below. The official FAA airport diagram is at the bottom of the page. Track KDEC in the ATIS Alerts Telegram bot to get a message when a new METAR changes the picture — flight category, wind, or ceiling past your selected minimums.
Wind calm, visibility 10+ statute miles, no cloud data, temperature 22°C (72°F), altimeter 29.88 inHg. Conditions are Visual Flight Rules (VFR).
METAR KDEC 290154Z 00000KT 10SM CLR 22/21 A2988 RMK AO2 SLP113 T02220206
What changed at KDEC?
Since the 0054Z (7:54 PM CDT) report — compared automatically against the latest METAR.
- Temperature–dewpoint spread narrowed to 2°C — watch for fog or low cloud.
This is exactly what ATIS Alerts watches for you — get a Telegram message when KDEC's weather changes, free →
Current pilot readout for KDEC
KDEC is currently VFR with calm winds, visibility 10+ statute miles, and no ceiling reported. Density altitude is approximately 1,750 ft (field elevation 682 ft). Review the latest TAF below for forecast changes before departure.
⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →
Get KDEC weather alerts in Telegram
Stop refreshing aviation weather manually. Track KDEC in ATIS Alerts and get notified when a new METAR changes the picture — a category drop, or wind and ceiling moving toward your minimums.
Track KDEC free on TelegramRunway wind check
Estimated head/tailwind and crosswind for each runway end from the current reported wind.
Use this section to quickly compare current wind alignment across available runways at KDEC. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.
Current wind is calm — calm wind is not a factor for runway selection, and with no wind there is no head/tail or crosswind component to compute. Live numbers return automatically once a report includes a wind direction.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 06 | 8,496 ft | PEM | — | — |
| 12 | 6,799 ft | PEM | — | — |
| 18 | 5,298 ft | ASP | — | — |
| 24 | 8,496 ft | PEM | — | — |
| 30 | 6,799 ft | PEM | — | — |
| 36 | 5,298 ft | ASP | — | — |
Open the crosswind calculator — try your own wind and runway numbers →
24-hour trend
Wind, ceiling and flight category over the last 24 hours.
Over the last 23 h: wind 5→0 kt, ceiling unlimited → unlimited.
KDEC weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast — drag to pan, tap ⚡ to toggle lightning.
Live weather radar around Decatur Airport in Decatur, IL: the NOAA/NWS NEXRAD composite updates about every five minutes, with NOAA lightning strike density overlaid. The loop plays the past 50 minutes, then continues into a future-radar forecast (+1 to +4 hours, NOAA HRRR model) so you can see where precipitation around KDEC is headed.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © OpenStreetMap © CARTO
Forecast frames (amber label) are HRRR model guidance, not observed radar. Lightning strike density appears as a blue-white glow when strikes are detected in view. Radar and lightning coverage are limited in parts of Alaska, Hawaii, and offshore areas. Not for navigation.
Pilot reports (PIREPs) within 100 NM of KDEC
Reported by pilots in flight over the past 6 hours — via aviationweather.gov.
Show raw report
JOT UA /OV JOT180030/TM 0123/FL210/TP B39M/TB NEG
JOT UAHeader — reporting station and UA: a routine pilot report.OV JOT180030Location — fix or navaid, optionally with a radial and distance in NM.TM 0123Reported at 01:23 UTC.FL210Altitude: 21,000 ft MSL.TP B39MAircraft type reporting.TB NEGTurbulence: none reported.Show raw report
CMI UA /OV CMI140010/TM 2058/FL030/TP P28A/SK SCT030-TOPUNKN/RM DURD
CMI UAHeader — reporting station and UA: a routine pilot report.OV CMI140010Location — fix or navaid, optionally with a radial and distance in NM.TM 2058Reported at 20:58 UTC.FL030Altitude: 3,000 ft MSL.TP P28AAircraft type reporting.SK SCT030-TOPUNKNSky condition — cloud bases and tops in hundreds of feet MSL.RM DURDRemarks.Show raw report
CMI UA /OV CMI/TM 2030/FL030/TP TB30/SK BKN030/RM DURC SOUTHWEST BOUND
CMI UAHeader — reporting station and UA: a routine pilot report.OV CMILocation — fix or navaid, optionally with a radial and distance in NM.TM 2030Reported at 20:30 UTC.FL030Altitude: 3,000 ft MSL.TP TB30Aircraft type reporting.SK BKN030Sky condition — cloud bases and tops in hundreds of feet MSL.RM DURC SOUTHWEST BOUNDRemarks.Show raw report
CMI UA /OV DEC/TM 2025/FL025/TP C700/SK OVC025 TOP027/RM DURC
CMI UAHeader — reporting station and UA: a routine pilot report.OV DECLocation — fix or navaid, optionally with a radial and distance in NM.TM 2025Reported at 20:25 UTC.FL025Altitude: 2,500 ft MSL.TP C700Aircraft type reporting.SK OVC025 TOP027Sky condition — cloud bases and tops in hundreds of feet MSL.RM DURCRemarks.⚠️ PIREPs are unverified pilot reports. Not for operational use — conditions change between reports.
Recent aviation weather trends at KDEC
From ATIS Alerts' hourly weather history.
Over the past 24 hours, KDEC reported mostly VFR across 26 observations, with 2 flight-category changes. The lowest ceiling was 1,200 ft. Wind most often came from the NE.
Most recent change: MVFR → VFR
Most recent change: MVFR → VFR
- 24
- 31%
- 06
- 30%
- 18
- 19%
- 36
- 9%
- 30
- 6%
- 12
- 5%
TAF — Terminal Aerodrome Forecast
Issued 2326Z (6:26 PM CDT)
TAF KDEC 282326Z 2900/2924 04008KT P6SM SCT150 FM291400 05010KT P6SM FEW025 SCT250
New to TAFs? How to read one →
Want forecast changes pushed to you? Start free on Telegram → TAF heads-ups are part of Premium · see what Premium includes
Get free ATIS alerts for KDEC
We'll message you on Telegram the moment a new METAR changes the picture at KDEC (Decatur Airport) — flight category, wind, or ceiling past your minimums.
Track KDEC on TelegramFree • no app to install • unsubscribe anytime
Airport facts
Reference data from the OurAirports dataset.
- Type
- Regional airport
- ICAO
- KDEC
- IATA
- DEC
- FAA LID
- DEC
- City
- Decatur
- State
- Illinois
- Country
- United States
- Elevation
- 682 ft
- Coordinates
- 39.8346, -88.8657
- Runways
- 6
- Longest runway
- 8,496 ft
- Weather reporting
- Reports METAR
- TAF
- Published
- ATIS
- 126.35 MHz
- CTAF
- 118.9 MHz
- Time zone
- America/Chicago
- Next sunset
- 23h 8m
Run a flight school, FBO, or club here? Embed KDEC's live status on your website — free →
Nearby airports
Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.
Within 25 NM
8 airports+2 more within 25 NM
25–50 NM
8 airports+2 more within 50 NM
50–100 NM
8 airports+2 more within 100 NM
RC flying fields nearby
AMA model-aircraft club fields around this airport — live wind, crosswind & flyability on each page.
- Richland Community College — Decatur, IL · 4 mi
- Decatur Aerocommanders RC Inc 1 — Decatur, IL · 5 mi
- Decatur Aerocommanders R.C. Inc - Cundiff Rd — Decatur, IL · 6 mi
Historical Flying Weather
2006–2025 · ATIS Alerts Flying Weather Index
Based on historical observations from 2006–2025, KDEC reported VFR conditions during about 79.8% of valid daylight observations, with an estimated 260 VFR flying days a year. July had the most VFR weather; December had the most instrument conditions. Surface winds averaged 8.3 kt, calm 8.6% of the time.
Full historical breakdown
Flight category by month
| Month | VFR % | MVFR % | IFR % | LIFR % |
|---|---|---|---|---|
| Jan | 60.2 | 21.7 | 10.6 | 7.5 |
| Feb | 68.4 | 18.1 | 8.4 | 5.2 |
| Mar | 75.7 | 15.6 | 6.3 | 2.5 |
| Apr | 83.1 | 11.3 | 4.0 | 1.6 |
| May | 85.9 | 9.3 | 3.8 | 1.1 |
| Jun | 90.5 | 6.3 | 2.2 | 0.9 |
| Jul | 91.2 | 5.6 | 2.0 | 1.2 |
| Aug | 90.1 | 6.6 | 2.2 | 1.2 |
| Sep | 88.2 | 7.1 | 3.0 | 1.7 |
| Oct | 83.5 | 9.6 | 5.1 | 1.9 |
| Nov | 76.2 | 15.2 | 5.9 | 2.7 |
| Dec | 59.0 | 24.7 | 10.2 | 6.2 |
Average wind by month
| Month | Mean wind (kt) |
|---|---|
| Jan | 9.8 kt |
| Feb | 9.8 kt |
| Mar | 10.1 kt |
| Apr | 9.9 kt |
| May | 8.2 kt |
| Jun | 7.2 kt |
| Jul | 5.9 kt |
| Aug | 5.7 kt |
| Sep | 6.1 kt |
| Oct | 8.1 kt |
| Nov | 9.0 kt |
| Dec | 9.2 kt |
Historical summary of past observations — not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.
KDEC airport diagram
Official FAA taxiway and runway layout. Tap to zoom.
The FAA airport diagram for Decatur Airport in Decatur, IL shows the runway and taxiway layout across 6 runways, ramp areas, and hold-short positions — review it before taxiing at an unfamiliar field.
Official FAA airport diagram · d-TPP cycle 2608 · Not for navigation. Download the official FAA PDF ↗
KDEC weather — frequently asked
What runways are available at KDEC?+
KDEC has 6 runways — 06, 12, 18, 24, 30, 36; the longest is 8,496 ft. This page computes the live crosswind for each runway end from the current wind.
Does KDEC report its own weather?+
Yes — Decatur Airport has its own weather station and publishes METAR observations, which this page decodes live.
Does KDEC have a TAF?+
Yes — the TAF is shown on this page below the current conditions.
Does KDEC broadcast D-ATIS?+
No — KDEC does not broadcast D-ATIS. Alerts for KDEC from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR instead.
Where can I find the KDEC airport diagram?+
The official FAA airport diagram for Decatur Airport (KDEC) is shown on this page — it maps the runway and taxiway layout, ramps, and hold-short lines. Tap it to zoom, or download the official FAA PDF free from the link under the diagram (updated every 28-day FAA charting cycle).
Pilot PIREPs for Decatur Airport (KDEC)
Community-submittedCommunity-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.
Read recent community-submitted pilot notes for Decatur Airport, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.
⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.
No Pilot PIREPs have been submitted for KDEC yet. Recently flew here? Help the next pilot by leaving a quick airport note.
Pilot PIREPs are community pilot notes for situational awareness only — not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.
Why pilots use ATIS Alerts
Free aviation weather and ATIS change alerts for GA pilots, delivered on Telegram — so a change catches your eye before it catches you off guard.
- Get pinged the moment KDEC drops below VFR or a new report moves your numbers.
- Live METAR, TAF, crosswinds, and FAA delays — one link, always current.
- Free, no app to install, and you can track any US airport. Unsubscribe anytime.
⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
No D-ATIS at this airport — showing METAR.
Spotted incorrect airport info? ✏️ Suggest an edit