Ralph Jacobs Airport (27LL) Area Aviation Weather & Runway Winds
As of 8:53 PM CDT, Oct 27, based on the nearest station (KCPS), 27LL is currently VFR with winds from 170° at 3 knots, visibility 10+ statute miles, and no ceiling reported.
Aviation weather near Ralph Jacobs Airport in Valmeyer, IL, decoded from the nearest reporting station (KCPS): conditions and runway crosswinds.
Ralph Jacobs Airport (27LL) is a general aviation airport serving pilots in and around Valmeyer, IL at a field elevation of 400 ft. 27LL has no weather station of its own. Conditions here are decoded from KCPS, about 14 nm away, the nearest reporting station, and local conditions can differ. It has one runway (09/27), the longest 1,800 ft. The nearest TAF is issued for KCPS.
No weather station at this airport: showing the nearest station KCPS, 14 nm away.
Wind from the south (170°) at 3 kt, visibility 10+ statute miles, no cloud data, temperature 14°C (58°F), altimeter 30.20 inHg. Conditions are Visual Flight Rules (VFR).
METAR KCPS 280153Z 17003KT 10SM CLR 14/09 A3020 RMK AO2 SLP226 T01440094 $
What changed at KCPS (nearest station)?
Since the 0053Z (7:53 PM CDT) report, compared automatically against the latest METAR.
No significant changes since the 0053Z (7:53 PM CDT) report, conditions are holding steady.
Current pilot readout for 27LL
Based on the nearest station (KCPS), 27LL is currently VFR with winds from 170° at 3 knots, visibility 10+ statute miles, and no ceiling reported. the wind favors east-facing runway ends (09). Density altitude is approximately 100 ft (field elevation 400 ft). Review the latest TAF below for forecast changes before departure.
New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →
Runway wind check
Estimated head/tailwind and crosswind for each runway end from the current reported wind.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 09FAV | 1,800 ft | TURF | 1 kt head | 3 kt right |
| 27 | 1,800 ft | TURF | 1 kt tail | 3 kt left |
Open the crosswind calculator to try your own wind and runway numbers →
27LL runways
1 physical runway · 2 runway ends. Each card opens the runway's intelligence page: equipment and lighting, LAHSO, frequencies, today's configuration, predicted use, history and approaches.
- Status not monitoredRunway 09/271,800 × 80 ft · TURFCurrent useno stated-runway source at 27LLWind
- 09
- 1 kt headwind · 3 kt crosswind from right
- 27
- 1 kt tailwind · 3 kt crosswind from left
no active equipment NOTAM receivedView Runway Intelligence →
“Current use” is what the facilitystates; wind components are arithmetic on the current METAR against TRUE headings; status reflects NOTAMs received through SWIM, the tower's TFDM record and the D-ATIS — a runway reads “Open” only with a complete NOTAM picture.
24-hour trend
Wind, ceiling and flight category over the last 24 hours.
Over the last 23 h: wind 3→3 kt, ceiling unlimited → unlimited.
27LL weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap
NOAA NEXRAD composite and lightning, updated about every five minutes; amber frames are HRRR model guidance, not observed radar. Not for navigation.
Pilot reports (PIREPs) within 100 NM of 27LL
Reported by pilots in flight over the past 6 hours, via aviationweather.gov.
Show raw report
ARP UAL2443 3700N 09000W 2135 F360 231/066KT TB SMTH IC
ARP UAL2443 3700N 09000W 213…Header: reporting station and UA: a routine pilot report.⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.
Recent aviation weather trends at 27LL
From ATIS Alerts' hourly weather history.
Over the past 24 hours, the nearest station KCPS reported mostly VFR across 28 observations, with 5 flight-category changes. The lowest ceiling was 10,000 ft. Wind most often came from the S.
Most recent change: IFR → VFR
Most recent change: MVFR → VFR
Share of hours each runway had the most headwind. From wind reports, not ATC assignments.
- 27
- 52%
- 09
- 48%
TAF | Terminal Aerodrome Forecast
Issued 2320Z (6:20 PM CDT)
TAF KCPS 272320Z 2800/2824 VRB04KT P6SM BKN250
New to TAFs? How to read one →
Get 27LL weather alerts in Telegram
Stop refreshing aviation weather manually. Track 27LL 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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Live crosswind meter
27LL has no weather feed online, so the wind comes from KCPS, 14 nm away.
Wind is 68° off runway 09, the end with the most headwind right now.
Have a weather station at 27LL? Help us make your field's weather available to every pilot, free. Add your field's wx station →Turf · 1,800 ft. Headings from FAA runway data. Not for navigation.
Field aerial
North up
Imagery: USGS The National Map (public domain). Something off? ✏️ Suggest an edit
Airport info
From the FAA airport record (cycle 2026-10-01) and OurAirports.
Services
- Attended
- Daily DALGT local
- Landing fee
- No
- Control tower
- None
- Wind indicator
- Unlighted
Airport
- Type
- General aviation airport
- FAA LID
- 27LL
- City
- Valmeyer
- State
- Illinois
- Country
- United States
- Elevation
- 400 ft
- Coordinates
- 38.3751, -90.3193
- Runways
- 1 physical runway · 2 runway ends
- Longest runway
- 1,800 ft
- Weather reporting
- Nearest station KCPS
- TAF
- Nearest KCPS
- Time zone
- America/Chicago
- Next sunset
- 20h 26m
Run a flight school, FBO, or club here? Embed 27LL'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.
- Columbia R/C Flying Club Inc - Bluff Rd , Columbia, IL · 6 mi
- Buder Park , Fenton, MO · 15 mi
- Buder Park , Fenton, MO · 15 mi
Pilot PIREPs for Ralph Jacobs Airport (27LL)
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 Ralph Jacobs 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 27LL 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.
⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
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