Siskiyou County Airport (KSIY) Aviation Weather: METAR
As of 11:53 AM PDT, Oct 28, KSIY is currently VFR with calm winds, visibility 10+ statute miles, and no ceiling reported.
Live aviation weather for Siskiyou County Airport in Montague, CA, including METAR, flight category, wind, visibility, ceiling, altimeter and runway crosswinds.
Siskiyou County Airport (KSIY) is a general aviation airport serving pilots in and around Montague, CA at a field elevation of 2,651 ft. KSIY reports its own METAR, decoded live on this page as flight category, wind, visibility, ceiling and altimeter. It has one runway (17/35), the longest 7,490 ft. Automated weather is broadcast on 121.125.
Wind calm, visibility 10+ statute miles, no cloud data, temperature 6°C (43°F), altimeter 30.14 inHg. Conditions are Visual Flight Rules (VFR).
METAR KSIY 281853Z AUTO 00000KT 10SM CLR 06/01 A3014 RMK AO2 SLP229 T00610006
Current pilot readout for KSIY
KSIY is currently VFR with calm winds, visibility 10+ statute miles, and no ceiling reported. Density altitude is approximately 1,950 ft (field elevation 2,651 ft). KSIY does not publish a TAF. The nearest TAF station is KLMT, about 40 nm away.
KSIY by the numbers
What the long-run records say about flying here, computed for this airport alone.
KSIY reported VFR in 93% of daylight observations over 20 years, about 319 flyable days a year. June is the most reliable month and December the least, with IFR or worse 11% of the time. When conditions drop it is usually fog and low visibility rather than low ceilings (visibility under 3 miles 3% of hours, ceilings under 1,000 ft 1%).
Over 20 years of hourly winds, runway 35 had the best headwind 66% of the time, runway 17 35%, and winds were calm 35% of hours. Winds most often blow from the north. Crosswind on the best available runway topped 15 kt in 1% of hours.
Snow fell on about 20 days a year and freezing rain or drizzle on 1. From December to February KSIY was IFR or worse 9% of the time, against 1% from June to August.
Fog was reported on about 33 days a year, and fog or mist on 70. January and December are the foggiest months, with fog in 11% of hours, against under 1% in June.
Field elevation is 2,651 ft, but on a median summer afternoon the air performs like 5,110 ft, 2,459 ft higher. Plan for a longer takeoff roll and a weaker climb from June to August.
Winds were calm 29% of the time and averaged 5.3 kt overall. June is the windiest month (mean 7 kt) and November the calmest.
Sources: hourly observations 2006 to 2025 and the per-runway wind climatology 2006 to 2025. Historical summaries, not a forecast: check the current METAR, TAF and a briefing before flight.
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.
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 |
|---|---|---|---|---|
| 17 | 7,490 ft | ASP | - | - |
| 35 | 7,490 ft | ASP | - | - |
Open the crosswind calculator to try your own wind and runway numbers →
KSIY 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 17/357,490 × 150 ft · ASPCurrent useno stated-runway source at KSIYWind
- 17
- no steady wind
- 35
- no steady wind
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.
KSIY 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 KSIY
Reported by pilots in flight over the past 6 hours, via aviationweather.gov.
Show raw report
MFR UA /OV MFR/TM 1715/FLSFC/TP C208/SK FEW044/WX 10SM/TA 07/WV 00000KT/TB NEGATIVE/IC NEGATIVE/RM A C208 ON THE ILS FOR RUNWAY 14 REPORTED BKN LAYERS ON APPROACH PICKED UP THE RUNWAY 3 1/2NM OUT WITH NEGATIVE ICING
MFR UAHeader: reporting station and UA: a routine pilot report.OV MFRLocation: fix or navaid, optionally with a radial and distance in NM.TM 1715Reported at 17:15 UTC.FLSFCAltitude: hundreds of feet MSL. UNKN = unknown; DURC/DURD = during climb/descent.TP C208Aircraft type reporting.SK FEW044Sky condition: cloud bases and tops in hundreds of feet MSL.WX 10SMWeather and flight visibility observed.TA 07Outside air temperature, °C.WV 00000KTWind (direction/speed) or wind-shear remarks.TB NEGATIVETurbulence: negative.IC NEGATIVEIcing: negative.RM A C208 ON THE ILS FOR RUN…Remarks.Show raw report
MFR UA /OV MFR/TM 1617/FLSFC/TP B190/SK FEW 024/WX 10SM/TA 05/WV 18005KT/TB NEGATIVE/IC NEGATIVE/RM A B190 ON TH ILS TO RWY 14 REPORTED THE BASES 023 AND TOPS AT 033
MFR UAHeader: reporting station and UA: a routine pilot report.OV MFRLocation: fix or navaid, optionally with a radial and distance in NM.TM 1617Reported at 16:17 UTC.FLSFCAltitude: hundreds of feet MSL. UNKN = unknown; DURC/DURD = during climb/descent.TP B190Aircraft type reporting.SK FEW 024Sky condition: cloud bases and tops in hundreds of feet MSL.WX 10SMWeather and flight visibility observed.TA 05Outside air temperature, °C.WV 18005KTWind (direction/speed) or wind-shear remarks.TB NEGATIVETurbulence: negative.IC NEGATIVEIcing: negative.RM A B190 ON TH ILS TO RWY 1…Remarks.Show raw report
MFR UA /OV MFR/TM 1605/FLSFC/TP PC12/SK FEW024/WX 10SM/TA 05/WV 18005KT/TB NEGATIVE/IC NEGATIVE/RM MULTIPLE LAYERS DOWN TO 030 BASES AT 021
MFR UAHeader: reporting station and UA: a routine pilot report.OV MFRLocation: fix or navaid, optionally with a radial and distance in NM.TM 1605Reported at 16:05 UTC.FLSFCAltitude: hundreds of feet MSL. UNKN = unknown; DURC/DURD = during climb/descent.TP PC12Aircraft type reporting.SK FEW024Sky condition: cloud bases and tops in hundreds of feet MSL.WX 10SMWeather and flight visibility observed.TA 05Outside air temperature, °C.WV 18005KTWind (direction/speed) or wind-shear remarks.TB NEGATIVETurbulence: negative.IC NEGATIVEIcing: negative.RM MULTIPLE LAYERS DOWN TO 0…Remarks.Show raw report
MFR UA /OV MFR/TM 1506/FLSFC/TP E120/SK SCT009 OVC027/WX 10SM/TA 04/WV 18005KT/TB NEGATIVE/IC NEGATIVE/RM AMF1932 REPORTED MULTIPLE SCATTERED LAYERS 070-060 AND 040 BKN AT 023
MFR UAHeader: reporting station and UA: a routine pilot report.OV MFRLocation: fix or navaid, optionally with a radial and distance in NM.TM 1506Reported at 15:06 UTC.FLSFCAltitude: hundreds of feet MSL. UNKN = unknown; DURC/DURD = during climb/descent.TP E120Aircraft type reporting.SK SCT009 OVC027Sky condition: cloud bases and tops in hundreds of feet MSL.WX 10SMWeather and flight visibility observed.TA 04Outside air temperature, °C.WV 18005KTWind (direction/speed) or wind-shear remarks.TB NEGATIVETurbulence: negative.IC NEGATIVEIcing: negative.RM AMF1932 REPORTED MULTIPLE…Remarks.Show raw report
MFR UA /OV MFR/TM 1410/FLSFC/TP E120/SK OVC024/WX 10SM/TA 04/WV 00000KT/TB NEGATIVE/IC NEGATIVE/RM TOPS AT 063 AND BASES AT 028 REPORTED BY AMF1978 ON THE ILS TO RWY 14 AT MFR
MFR UAHeader: reporting station and UA: a routine pilot report.OV MFRLocation: fix or navaid, optionally with a radial and distance in NM.TM 1410Reported at 14:10 UTC.FLSFCAltitude: hundreds of feet MSL. UNKN = unknown; DURC/DURD = during climb/descent.TP E120Aircraft type reporting.SK OVC024Sky condition: cloud bases and tops in hundreds of feet MSL.WX 10SMWeather and flight visibility observed.TA 04Outside air temperature, °C.WV 00000KTWind (direction/speed) or wind-shear remarks.TB NEGATIVETurbulence: negative.IC NEGATIVEIcing: negative.RM TOPS AT 063 AND BASES AT …Remarks.⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.
Recent aviation weather trends at KSIY
From ATIS Alerts' hourly weather history.
History is still being collected. Check back in a few days.
Most recent change: LIFR → VFR
Share of hours each runway had the most headwind. From wind reports, not ATC assignments.
- 35
- 89%
- 17
- 11%
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Track KSIY free on TelegramLive KSIY Weather
Live crosswind meter
Measured by KSIY's own weather station.
Wind is calm or variable. Either end works.
Asphalt · 7,490 ft. Headings from FAA runway data. Not for navigation.
Field aerial
North up
Runway 17/35 drawn from FAA threshold coordinates.
Imagery: USGS The National Map (public domain). Something off? ✏️ Suggest an edit
Nearby TFRs
Active FAA TFRs near KSIY
FAA TFR data shows an active temporary flight restriction near KSIY.
View all active US TFRs → · Official FAA TFR ↗
Verify with official FAA TFR sources before flight.
Airport info
From the FAA airport record (cycle 2026-10-01) and OurAirports.
Services
- Fuel
- Jet A
- Attended
- Daily 0800-1700 local
- Transient parking
- Tie-downs
- Landing fee
- Yes
- Other services
- Crop dusting · Charter
- Control tower
- None
- Wind indicator
- Lighted
Airport
- Type
- General aviation airport
- ICAO
- KSIY
- IATA
- SIY
- FAA LID
- SIY
- City
- Montague
- State
- California
- Country
- United States
- Elevation
- 2,651 ft
- Coordinates
- 41.7814, -122.4680
- Runways
- 1 physical runway · 2 runway ends
- Longest runway
- 7,490 ft
- Weather reporting
- Reports METAR
- TAF
- Nearest KLMT
- AWOS/ASOS
- 121.125 MHz
- Time zone
- America/Los_Angeles
- Sunset in
- 5h 56m
Run a flight school, FBO, or club here? Embed KSIY'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
7 airports+1 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.
- Siskiyou County R/Cers - Montague Rd , Montague, CA · 1 mi
- Siskiyou County R/Cers - Webb St , Montague, CA · 5 mi
Historical Flying Weather at KSIY
2006–2025 · ATIS Alerts Flying Weather Index
Based on historical observations from 2006–2025, KSIY reported VFR conditions during about 93.1% of valid daylight observations, with an estimated 319 VFR flying days a year. June had the most VFR weather; December had the most instrument conditions. Surface winds averaged 5.3 kt, calm 29.4% of the time.
Full historical breakdown
Flight category by month
| Month | VFR % | MVFR % | IFR % | LIFR % |
|---|---|---|---|---|
| Jan | 83.8 | 5.8 | 2.9 | 7.5 |
| Feb | 92.0 | 3.6 | 1.7 | 2.6 |
| Mar | 95.3 | 3.4 | 0.6 | 0.7 |
| Apr | 97.2 | 2.3 | 0.3 | 0.2 |
| May | 97.5 | 1.9 | 0.3 | 0.3 |
| Jun | 99.3 | 0.7 | 0.0 | 0.0 |
| Jul | 97.2 | 2.0 | 0.7 | 0.1 |
| Aug | 89.3 | 7.3 | 3.2 | 0.2 |
| Sep | 94.7 | 3.5 | 1.6 | 0.3 |
| Oct | 96.6 | 2.0 | 0.5 | 0.9 |
| Nov | 89.6 | 4.4 | 1.3 | 4.7 |
| Dec | 82.5 | 6.7 | 2.6 | 8.2 |
Average wind by month
| Month | Mean wind (kt) |
|---|---|
| Jan | 4.4 kt |
| Feb | 5.0 kt |
| Mar | 6.3 kt |
| Apr | 6.0 kt |
| May | 6.1 kt |
| Jun | 6.5 kt |
| Jul | 5.9 kt |
| Aug | 5.3 kt |
| Sep | 4.8 kt |
| Oct | 4.4 kt |
| Nov | 4.3 kt |
| Dec | 4.3 kt |
Historical summary of past observations: not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.
Customize your SIY shirt or mug
SIY's real runway layout on the back, elevation and tower frequency on the front. Add your tail number on the sleeve.
Pilot PIREPs for Siskiyou County Airport (KSIY)
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 Siskiyou County 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 KSIY 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.
No D-ATIS at this airport, showing METAR.
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