Boulder Airport (3U9) Area Aviation Weather & Runway Winds
Aviation weather near Boulder Airport in Boulder, MT, decoded from the nearest reporting station (KBTM) — conditions, runway crosswinds, and free Telegram airport alerts.
Boulder Airport (3U9) is a general aviation airport serving pilots in and around Boulder, MT at 4,968 ft. 3U9 has no weather station of its own — conditions here are decoded from KBTM, about 22 nm away, the nearest reporting station, and local conditions can differ. Its 2 runways (11, 29) — longest 3,675 ft — are checked against the current wind in the crosswind table below. The nearest TAF is issued for KBTM. Track it in the ATIS Alerts Telegram bot to get alerts read from KBTM, the station this page is based on.
No weather station at this airport — showing the nearest station KBTM, 22.4 nm away.
Wind from the southeast (140°) at 6 kt, visibility 9 statute miles, no cloud data, temperature 16°C (61°F), altimeter 30.08 inHg. Conditions are Visual Flight Rules (VFR).
METAR KBTM 290553Z AUTO 14006KT 9SM CLR 16/03 A3008 RMK AO2 SLP126 T01610028 10311 20161 51014
What changed at KBTM (nearest station)?
Since the 0453Z (10:53 PM MDT) report — compared automatically against the latest METAR.
- Temperature down 4°C.
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Current pilot readout for 3U9
Based on the nearest station (KBTM), 3U9 is currently VFR with winds from 140° at 6 knots, visibility 9 statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 11, about 4 knots. Density altitude is approximately 6,100 ft (field elevation 4,968 ft). Review the latest TAF below for forecast changes before departure.
⚠️ 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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Track 3U9 free on TelegramRunway 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 3U9. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 11FAV | 3,675 ft | TURF-F | 5 kt tail | 4 kt right |
| 29 | 3,675 ft | TURF-F | 5 kt tail | 4 kt right |
Open the crosswind calculator — 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 11→6 kt, ceiling unlimited → unlimited.
3U9 weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast — drag to pan, tap ⚡ to toggle lightning.
Live weather radar around Boulder Airport in Boulder, MT: 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 3U9 is headed.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © OpenStreetMap © CARTO
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 3U9
Reported by pilots in flight over the past 6 hours — via aviationweather.gov.
Show raw report
BTM UA /OV CPN155040/TM 0034/FL170/TP E75L/TB OCNL MOD 155-165 /RM DURC /ZLC
BTM UAHeader — reporting station and UA: a routine pilot report.OV CPN155040Location — fix or navaid, optionally with a radial and distance in NM.TM 0034Reported at 00:34 UTC.FL170Altitude: 17,000 ft MSL.TP E75LAircraft type reporting.TB OCNL MOD 155-165Turbulence: occasional moderate 15,500–16,500 ft.RM DURC /ZLCRemarks.⚠️ PIREPs are unverified pilot reports. Not for operational use — conditions change between reports.
Recent aviation weather trends at 3U9
From ATIS Alerts' hourly weather history.
Over the past 24 hours, the nearest station KBTM reported mostly VFR across 27 observations, with 0 flight-category changes. The strongest gust reached 21 kt. Wind most often came from the SE.
Most recent change: MVFR → VFR
- 11/29
- 100%
TAF — Terminal Aerodrome Forecast
Issued 0526Z (11:26 PM MDT)
TAF KBTM 290526Z 2906/3006 16004KT 6SM FU SKC FM292000 29013KT 6SM FU SKC FM300100 10006KT 6SM FU SKC
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Airport facts
Reference data from the OurAirports dataset.
- Type
- General aviation airport
- FAA LID
- 3U9
- City
- Boulder
- State
- Montana
- Country
- United States
- Elevation
- 4,968 ft
- Coordinates
- 46.2116, -112.1060
- Runways
- 2
- Longest runway
- 3,675 ft
- Weather reporting
- Nearest station KBTM
- TAF
- Nearest KBTM
- Time zone
- America/Denver
- Next sunset
- 20h 57m
Run a flight school, FBO, or club here? Embed 3U9'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
9 airports+3 more within 25 NM
25–50 NM
8 airports+2 more within 50 NM
50–100 NM
7 airports+1 more within 100 NM
RC flying fields nearby
AMA model-aircraft club fields around this airport — live wind, crosswind & flyability on each page.
- Butte Plane Nutz - Butte Industrial Park — Butte, MT · 28 mi
3U9 weather — frequently asked
What runways are available at 3U9?+
3U9 has 2 runways — 11, 29; the longest is 3,675 ft. This page computes the live crosswind for each runway end from the current wind.
Where does the weather shown for 3U9 come from?+
Boulder Airport does not have its own weather station. Conditions shown here come from the nearest reporting station, KBTM, about 22 nm away — close enough for situational awareness, but local conditions at 3U9 can differ.
Does 3U9 have a TAF?+
Yes — the KBTM TAF is shown on this page below the current conditions.
Does 3U9 broadcast D-ATIS?+
No — 3U9 does not broadcast D-ATIS. Alerts for 3U9 from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR (via the nearest reporting station) instead.
Pilot PIREPs for Boulder Airport (3U9)
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 Boulder 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 3U9 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.
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