KDEC TAF
Terminal aerodrome forecast for Decatur Airport (DEC · KDEC), Decatur, IL. Issued 6 Aug 2026 2320Z, valid 0000Z to 0000Z, decoded period by period below.
All of Decatur Airport — runways, frequencies, charts and live weatherTAF issued 6 Aug 2026 2320Z
valid 0000Z to 0000ZTAF KDEC 062320Z 0700/0724 17005KT P6SM SCT025 BKN250 FM070700 16005KT P6SM VCSH OVC050 FM071500 21009KT P6SM SCT025 BKN050
Times are UTC (Zulu), as they appear in the bulletin.
Period by period
| Period (UTC) | Change | Wind | Vis | Ceiling | Sky | Cat |
|---|---|---|---|---|---|---|
| 0000Z to 0700Z | Initial | 170° at 5 kt | 6+ SM | 25,000 ft BKN | Scattered at 2,500 ft AGL, Broken at 25,000 ft AGL | VFR |
| 0700Z to 1500Z | FM | 160° at 5 kt | 6+ SM | 5,000 ft OVC | Overcast at 5,000 ft AGL | VFR |
| 1500Z to 0000Z | FM | 210° at 9 kt | 6+ SM | 5,000 ft BKN | Scattered at 2,500 ft AGL, Broken at 5,000 ft AGL | VFR |
What the change groups mean
- FM
- From — a rapid, permanent change to the conditions that follow.
What the categories mean
- VFR
- Visual flight rules — ceiling above 3,000 ft and visibility greater than 5 SM.
Frequently asked
What is the current TAF for KDEC?
The forecast issued 6 Aug 2026 2320Z for Decatur Airport reads: TAF KDEC 062320Z 0700/0724 17005KT P6SM SCT025 BKN250 FM070700 16005KT P6SM VCSH OVC050 FM071500 21009KT P6SM SCT025 BKN050
How far ahead does a TAF forecast?
A TAF covers a 24-hour period at most airports and 30 hours at larger ones, issued four times a day at 0000Z, 0600Z, 1200Z and 1800Z. It describes conditions within roughly 5 statute miles of the airport, not the surrounding area.
What do FM, BECMG and TEMPO mean?
FM (from) marks a rapid, permanent change at the stated time. BECMG (becoming) marks a gradual change over the stated window. TEMPO marks conditions expected for less than half the period, in spells of under an hour each. PROB30 and PROB40 give the probability of the conditions that follow.
More about KDEC
Forecasts from the US National Weather Service Aviation Weather Center. Times are UTC (Zulu). For planning and education only — always confirm with an official preflight briefing.