St Clair County International Airport (KPHN) Aviation Weather, METAR, TAF & ATIS Alerts
Live aviation weather for St Clair County International Airport in Port Huron, MI, including METAR, TAF, flight category, wind, visibility, ceiling, altimeter, runway crosswinds, and Telegram airport alerts.
St Clair County International Airport (KPHN) is a general aviation airport serving pilots in and around Port Huron, MI at 650 ft. KPHN reports its own METAR, decoded live on this page as flight category, wind, visibility, ceiling and altimeter. Its 4 runways (04, 10, 22, 28), longest 5,104 ft, are checked against the current wind in the crosswind table below. Automated weather is broadcast on 118.375. Track KPHN 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 from the north-northwest (340°) at 3 kt, visibility 4 statute miles, scattered clouds at 800 ft, scattered clouds at 4,500 ft, scattered clouds at 6,000 ft, temperature 19°C (66°F), altimeter 29.90 inHg. Conditions are Marginal VFR (MVFR).
METAR KPHN 131035Z AUTO 34003KT 4SM BR SCT008 SCT045 SCT060 19/18 A2990 RMK AO2
What changed at KPHN?
Since the 1015Z (6:15 AM EDT) report, compared automatically against the latest METAR.
- Flight category improved from IFR to MVFR.
- Visibility improved from 1 SM to 4 SM.
- The 4,500 ft ceiling dissipated, no ceiling now.
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Current pilot readout for KPHN
KPHN is currently MVFR with winds from 340° at 3 knots, visibility 4 statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 10, about 3 knots. Density altitude is approximately 1,300 ft (field elevation 650 ft). KPHN does not publish a TAF. The nearest TAF station is KMTC, about 22 nm away.
⚠️ 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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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 KPHN. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 04FAV | 5,104 ft | ASP | 2 kt head | 2 kt left |
| 28 | 4,000 ft | ASP | 1 kt head | 3 kt right |
| 10 | 4,000 ft | ASP | 1 kt tail | 3 kt left |
| 22 | 5,104 ft | ASP | 2 kt tail | 2 kt right |
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 24 h: wind 0→3 kt, ceiling unlimited → unlimited.
KPHN weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.
Live weather radar around St Clair County International Airport in Port Huron, MI: 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 KPHN 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 KPHN
Reported by pilots in flight over the past 6 hours, via aviationweather.gov.
Show raw report
FNT UA /OV FNT360015/TM 1019/FL330/TP A321/TB CONS LGT CHOP/RM ZOB
FNT UAHeader: reporting station and UA: a routine pilot report.OV FNT360015Location: fix or navaid, optionally with a radial and distance in NM.TM 1019Reported at 10:19 UTC.FL330Altitude: 33,000 ft MSL.TP A321Aircraft type reporting.TB CONS LGT CHOPTurbulence: continuous light chop.RM ZOBRemarks.Show raw report
DTW UA /OV 12 MILE FINAL/TM 0932/FL032/TP B753/SK CLR/TB SMOOTH RIDE
DTW UAHeader: reporting station and UA: a routine pilot report.OV 12 MILE FINALLocation: fix or navaid, optionally with a radial and distance in NM.TM 0932Reported at 09:32 UTC.FL032Altitude: 3,200 ft MSL.TP B753Aircraft type reporting.SK CLRSky condition: cloud bases and tops in hundreds of feet MSL.TB SMOOTH RIDETurbulence: smooth ride.Show raw report
DTW UA /OV DXO/TM 0833/FL390/TP A21N/TB CONS LGT OCNL MOD CHOP 390/RM ZOB
DTW UAHeader: reporting station and UA: a routine pilot report.OV DXOLocation: fix or navaid, optionally with a radial and distance in NM.TM 0833Reported at 08:33 UTC.FL390Altitude: 39,000 ft MSL.TP A21NAircraft type reporting.TB CONS LGT OCNL MOD CHOP 39…Turbulence: continuous light occasional moderate chop 390.RM ZOBRemarks.Show raw report
DTW UA /OV RWY 22L FINAL/TM 0541/FLDURD/TP A20N/WX FIELD IN SIGHT 15 MILES OUT AND 040
DTW UAHeader: reporting station and UA: a routine pilot report.OV RWY 22L FINALLocation: fix or navaid, optionally with a radial and distance in NM.TM 0541Reported at 05:41 UTC.FLDURDReported during descent.TP A20NAircraft type reporting.WX FIELD IN SIGHT 15 MILES O…Weather and flight visibility observed.⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.
Recent aviation weather trends at KPHN
From ATIS Alerts' hourly weather history.
Over the past 24 hours, KPHN reported mostly VFR across 72 observations, with 12 flight-category changes. The strongest gust reached 16 kt, the lowest ceiling was 300 ft. Wind most often came from the S.
Most recent change: IFR → MVFR
Most recent change: MVFR → IFR
- 04
- 36%
- 22
- 34%
- 28
- 19%
- 10
- 11%
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Airport facts
Reference data from the OurAirports dataset.
- Type
- General aviation airport
- ICAO
- KPHN
- IATA
- PHN
- FAA LID
- PHN
- City
- Port Huron
- State
- Michigan
- Country
- United States
- Elevation
- 650 ft
- Coordinates
- 42.9110, -82.5289
- Runways
- 4
- Longest runway
- 5,104 ft
- Weather reporting
- Reports METAR
- TAF
- Nearest KMTC
- AWOS/ASOS
- 118.375 MHz
- Time zone
- America/Detroit
- Next sunset
- 12h 51m
Run a flight school, FBO, or club here? Embed KPHN'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.
- River District RC Eagles Inc - Ravenswood Rd , Smiths Creek, MI · 2 mi
- The St Clair County Propbusters R/C Club - Goodells Park , Goodells, MI · 8 mi
- East Wings Model Club - Pond Site Bordman Rd , Memphis, MI · 12 mi
Historical Flying Weather at KPHN
2006–2025 · ATIS Alerts Flying Weather Index
Based on historical observations from 2006–2025, KPHN reported VFR conditions during about 74.5% of valid daylight observations, with an estimated 234 VFR flying days a year. June had the most VFR weather; December had the most instrument conditions. Surface winds averaged 4.9 kt, calm 26.9% of the time.
Full historical breakdown
Flight category by month
| Month | VFR % | MVFR % | IFR % | LIFR % |
|---|---|---|---|---|
| Jan | 53.8 | 31.1 | 9.9 | 5.3 |
| Feb | 63.6 | 23.0 | 9.0 | 4.3 |
| Mar | 70.2 | 19.4 | 6.4 | 4.0 |
| Apr | 77.9 | 13.5 | 5.7 | 2.9 |
| May | 79.8 | 11.8 | 4.9 | 3.5 |
| Jun | 81.7 | 10.9 | 4.9 | 2.6 |
| Jul | 78.7 | 11.9 | 5.3 | 4.1 |
| Aug | 74.7 | 12.9 | 6.0 | 6.4 |
| Sep | 69.3 | 15.1 | 7.4 | 8.3 |
| Oct | 74.0 | 15.7 | 6.3 | 4.0 |
| Nov | 70.7 | 19.1 | 6.5 | 3.7 |
| Dec | 53.0 | 31.7 | 9.1 | 6.3 |
Average wind by month
| Month | Mean wind (kt) |
|---|---|
| Jan | 5.7 kt |
| Feb | 5.8 kt |
| Mar | 6.1 kt |
| Apr | 6.2 kt |
| May | 5.0 kt |
| Jun | 4.1 kt |
| Jul | 3.3 kt |
| Aug | 3.3 kt |
| Sep | 3.6 kt |
| Oct | 4.7 kt |
| Nov | 5.3 kt |
| Dec | 5.4 kt |
Historical summary of past observations: not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.
KPHN weather: frequently asked
What runways are available at KPHN?+
KPHN has 4 runways: 04, 10, 22, 28; the longest is 5,104 ft. This page computes the live crosswind for each runway end from the current wind.
Does KPHN report its own weather?+
Yes. St Clair County International Airport has its own weather station and publishes METAR observations, which this page decodes live.
Does KPHN have a TAF?+
No. KPHN does not publish its own TAF. The nearest TAF station is KMTC, about 22 nm away.
Does KPHN broadcast D-ATIS?+
No. KPHN does not broadcast D-ATIS. Alerts for KPHN from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR instead.
Pilot PIREPs for St Clair County International Airport (KPHN)
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 St Clair County International 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 KPHN 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.
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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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