Harlem Airport (K48S) Area Aviation Weather & Runway Winds
As of 2:15 PM MDT, Oct 28, based on the nearest station (KM75), K48S is currently VFR with winds from 300° at 12 knots, visibility 10+ statute miles, and no ceiling reported.
Aviation weather near Harlem Airport in Harlem, MT, decoded from the nearest reporting station (KM75): conditions and runway crosswinds.
Harlem Airport (K48S) is a general aviation airport serving pilots in and around Harlem, MT at a field elevation of 2,643 ft. K48S has no weather station of its own. Conditions here are decoded from KM75, about 36 nm away, the nearest reporting station, and local conditions can differ. It has 2 physical runways (11/29, 15/33), the longest 4,100 ft. CTAF is 122.9.
No weather station at this airport: showing the nearest station KM75, 36 nm away.
Wind from the west-northwest (300°) at 12 kt, visibility 10+ statute miles, a few clouds at 2,100 ft, temperature 7°C (45°F), altimeter 29.95 inHg. Conditions are Visual Flight Rules (VFR).
METAR KM75 282015Z AUTO 30012KT 10SM FEW021 07/03 A2995 RMK A01
What changed at KM75 (nearest station)?
Since the 1955Z (1:55 PM MDT) report, compared automatically against the latest METAR.
- Gusts are no longer reported.
Current pilot readout for K48S
Based on the nearest station (KM75), K48S is currently VFR with winds from 300° at 12 knots, visibility 10+ statute miles, and no ceiling reported. the wind favors northwest-facing runway ends (29). Density altitude is approximately 2,300 ft (field elevation 2,643 ft). K48S does not publish a TAF. The nearest TAF station is KHVR, about 39 nm away.
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 |
|---|---|---|---|---|
| 29FAV | 4,100 ft | ASP | 12 kt head | 1 kt left |
| 33 | 1,933 ft | GRS | 8 kt head | 8 kt left |
| 15 | 1,933 ft | GRS | 8 kt tail | 8 kt right |
| 11 | 4,100 ft | ASP | 12 kt tail | 1 kt right |
Open the crosswind calculator to try your own wind and runway numbers →
K48S runways
2 physical runways · 4 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 11/294,100 × 75 ft · ASPCurrent useno stated-runway source at K48SWind
- 11
- 12 kt tailwind · 1 kt crosswind from right
- 29
- 12 kt headwind · 1 kt crosswind from left
no active equipment NOTAM receivedView Runway Intelligence → - Status not monitoredRunway 15/331,933 × 120 ft · GRSCurrent useno stated-runway source at K48SWind
- 15
- 8 kt tailwind · 8 kt crosswind from right
- 33
- 8 kt headwind · 8 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 24 h: wind 11→12 kt, ceiling 6,500 ft → unlimited.
K48S 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.
Recent aviation weather trends at K48S
From ATIS Alerts' hourly weather history.
Over the past 24 hours, the nearest station KM75 reported mostly VFR across 72 observations, with 8 flight-category changes. The strongest gust reached 24 kt, the lowest ceiling was 1,000 ft. Wind most often came from the W.
Most recent change: MVFR → VFR
Most recent change: MVFR → VFR
Share of hours each runway had the most headwind. From wind reports, not ATC assignments.
- 29
- 41%
- 11
- 37%
- 15
- 12%
- 33
- 10%
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Live crosswind meter
K48S has no weather feed online, so the wind comes from KM75, 36 nm away.
Wind is 5° off runway 29, the end with the most headwind right now.
Have a weather station at K48S? Help us make your field's weather available to every pilot, free. Add your field's wx station →Asphalt · 4,100 ft. Headings from FAA runway data. Not for navigation.
Field aerial
North up
Runway 11/29, 15/33 drawn from FAA threshold coordinates.
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
- Unattended
- Transient parking
- Tie-downs · Hangars
- Landing fee
- No
- Other services
- Crop dusting
- Control tower
- None
- Wind indicator
- Lighted
Airport
- Type
- General aviation airport
- FAA LID
- 48S
- City
- Harlem
- State
- Montana
- Country
- United States
- Elevation
- 2,643 ft
- Coordinates
- 48.5661, -108.7730
- Runways
- 2 physical runways · 4 runway ends
- Longest runway
- 4,100 ft
- Weather reporting
- Nearest station KM75
- TAF
- Nearest KHVR
- CTAF
- 122.9 MHz
- Time zone
- America/Denver
- Sunset in
- 3h 39m
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Nearby airports
Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.
Within 25 NM
2 airports25–50 NM
1 airport50–100 NM
8 airports+2 more within 100 NM
Customize your 48S shirt or mug
48S's real runway layout on the back, elevation and tower frequency on the front. Add your tail number on the sleeve.
Pilot PIREPs for Harlem Airport (K48S)
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 Harlem 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 K48S 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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