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 not reported, visibility 10+ statute miles, no cloud data, temperature 21°C (70°F), altimeter 29.96 inHg. Conditions are Visual Flight Rules (VFR).
METAR KDEC 130654Z AUTO 10SM CLR 21/19 A2996 RMK AO2 RAB29E54 SLP138 P0000 T02110194
What changed at KDEC?
Since the 0554Z (12:54 AM CDT) report, compared automatically against the latest METAR.
- Temperature–dewpoint spread narrowed to 2°C. Watch for fog or low cloud.
- Pressure falling: altimeter 29.98 → 29.96 inHg.
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 1,550 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 →
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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.
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For pilots and crews overnighting at Decatur Airport (KDEC).
Nearby Pilot Hotel Deals
Well-reviewed places under $500 a night near KDEC (DEC); drag to explore or tap a pin for the rate.
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Runway 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 to 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 0→0 kt, ceiling 9,000 ft → 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 © Stadia Maps © OpenMapTiles © OpenStreetMap
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
TIP UA /OV RBS/TM 0539/FL410/TP GLF5/TB CONS LGT CHOP
TIP UAHeader: reporting station and UA: a routine pilot report.OV RBSLocation: fix or navaid, optionally with a radial and distance in NM.TM 0539Reported at 05:39 UTC.FL410Altitude: 41,000 ft MSL.TP GLF5Aircraft type reporting.TB CONS LGT CHOPTurbulence: continuous light chop.Show raw report
ENL UA /OV ENL/TM 0250/FL360/TP A320/TB LGT/RM /ZKCFDC CW
ENL UAHeader: reporting station and UA: a routine pilot report.OV ENLLocation: fix or navaid, optionally with a radial and distance in NM.TM 0250Reported at 02:50 UTC.FL360Altitude: 36,000 ft MSL.TP A320Aircraft type reporting.TB LGTTurbulence: light.RM /ZKCFDC CWRemarks.Show raw report
STL UA /OV STL/TM 0204/FL320/TP A320/TB CONS LGT/RM /ZKCFDC CW
STL UAHeader: reporting station and UA: a routine pilot report.OV STLLocation: fix or navaid, optionally with a radial and distance in NM.TM 0204Reported at 02:04 UTC.FL320Altitude: 32,000 ft MSL.TP A320Aircraft type reporting.TB CONS LGTTurbulence: continuous light.RM /ZKCFDC CWRemarks.Show raw report
STL UA /OV STL325010/TM 0157/FL350/TP B738/TB MOD CHOP/RM /ZKCFDC CW
STL UAHeader: reporting station and UA: a routine pilot report.OV STL325010Location: fix or navaid, optionally with a radial and distance in NM.TM 0157Reported at 01:57 UTC.FL350Altitude: 35,000 ft MSL.TP B738Aircraft type reporting.TB MOD CHOPTurbulence: moderate chop.RM /ZKCFDC CWRemarks.Show raw report
DEC UA /OV AXC/TM 0143/FL340/TP E170/TB CONS LGT CHOP/RM /ZKCFDC CW
DEC UAHeader: reporting station and UA: a routine pilot report.OV AXCLocation: fix or navaid, optionally with a radial and distance in NM.TM 0143Reported at 01:43 UTC.FL340Altitude: 34,000 ft MSL.TP E170Aircraft type reporting.TB CONS LGT CHOPTurbulence: continuous light chop.RM /ZKCFDC CWRemarks.⚠️ 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 31 observations, with 7 flight-category changes. The lowest ceiling was 600 ft. Wind most often came from the W.
Most recent change: MVFR → VFR
Most recent change: MVFR → VFR
- 18
- 26%
- 24
- 21%
- 30
- 17%
- 36
- 14%
- 06
- 13%
- 12
- 9%
TAF | Terminal Aerodrome Forecast
Issued 0520Z (12:20 AM CDT)
TAF KDEC 130520Z 1306/1406 32006KT P6SM FEW030 SCT250 FM131100 35005KT P6SM BKN200 FM131800 36010KT P6SM BKN090 PROB30 1322/1401 -SHRA
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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
- 16h 57m
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 at KDEC
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 2610 · 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
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- 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.
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⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
No D-ATIS at this airport, showing METAR.
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