Bert Mooney Airport

KBTM / BTM

Butte, US

Last Updated
Jun 8, 07:53Z

Current Weather

Display Units
Recent 35 min ago
07:53Z

☀️ Day
VFR
Flight Rules
-1°C
Temperature
Dewpoint: -5°C
3 kt
90°
10 SM
Visibility
Ceiling
Unlimited
1017 hPa
QNH
Altimeter Setting

Raw METAR

METAR KBTM 080753Z AUTO 09003KT 10SM CLR M01/M05 A3002 RMK AO2 SLP173 T10061050

Weather Briefing

VFR

Bert Mooney Airport is currently reporting visual flight rules (VFR) conditions with clear skies and 10 SM visibility.

Wind Analysis

Winds are from the east (90°) at 3 knots.

Visibility & Ceiling

Visibility is 10 SM. Skies are clear with unlimited ceiling.

Temperature & Moisture

Temperature is -1°C (30°F) with a dewpoint of -5°C. The narrow temperature-dewpoint spread suggests high humidity and potential for visibility restrictions, especially during cooling periods. Temperatures are at or below freezing. Check for icing conditions and ensure aircraft anti-ice/de-ice systems are operational if required.

Forecast Outlook

The TAF forecast covers the next 24 hours. Conditions are expected to remain VFR throughout the forecast period.

Pilot Recommendations

Conditions are favorable for visual flight.

This briefing is generated from real-time METAR and TAF data. Always verify with official sources before flight.

QNH
1017 hPa
Sea Level Pressure
For altitude above MSL
QFE
832 hPa
Field Pressure
Height above aerodrome (5,550 ft)
Pressure Alt
5,438 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 4,850 ft
ISA Deviation: -4.9°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF KBTM 080520Z 0806/0906 14005KT P6SM SCT250 FM082200 21011G21KT P6SM SCT100 FM090200 15006KT P6SM OVC080
Upcoming Changes (Next 12 Hours)
08:28Z BASE
+0h
VFR 140° 5 kt
Visibility: >6SM

24-Hour Weather Evolution

Loading weather data...
Data Sources
  • • Current conditions from METAR observations
  • • Historical data from past 24 hours
  • • No forecast or predicted data included
  • • Data updated with each new METAR report
Chart Features
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Note: Future values beyond current TAF validity are estimates based on climatological data and trends. Always verify with current forecasts before flight operations.

Airport Runway Layout

N
BTM
02
20
11 ✈️
29
15
33

Runway Information

Runway Length Width Surface Heading Wind Component
02/20 5,545 ft 75 ft ASP 38°
1.8 kt 2.4 kt
52° angle
✈️ 11/29
Active: 11
5,100 ft 75 ft ASP 129°
2.8 kt 1.0 kt
20° angle
15/33 9,001 ft 150 ft ASP 167°
0.7 kt 2.9 kt
77° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KBTM

6,864 observations | Sep 2025 - Jun 2026

Flight Rules Distribution

VFR
85.4%
MVFR
9.4%
IFR
4%
LIFR
1.2%

Bert Mooney Airport enjoys predominantly VFR conditions, with visual flight rules prevailing 85.4% of the time. Prevailing winds are from the NW averaging 7.2 knots, with gusts recorded up to 31 knots. Calm conditions occur 26.5% of the time. Temperature extremes range from -22°C to 28°C, reflecting significant seasonal variation. The best months for VFR flying are June, September, March.

Wind Analysis

Prevailing Direction: NW (315°)
Average Speed: 7.2 kt
Maximum Recorded: 31 kt
Calm Winds: 26.5%
Direction Distribution:
E
2.9%
N
10.6%
S
10.7%
W
12.1%
NE
3.1%
NW
18.5%
SE
10.2%
SW
5.4%

Temperature Range

Average: 3.4°C
Range: -22°C to 28°C
-22°C 28°C

Visibility

Average: 9.5 SM
Below 3 SM: 1.9%
Fog Frequency: 1.7%

Best Months for VFR

June September March

Runway Wind Analysis

Runway 02/20
Favorable wind: 100%
Avg crosswind: 5.2 kt
Runway 11/29
Favorable wind: 100%
Avg crosswind: 4 kt
Runway 15/33
Favorable wind: 100%
Avg crosswind: 3.7 kt

Statistics computed from 6,864 METAR observations (Sep 2025 - Jun 2026). Data sourced from official aviation weather services. Updated daily.

Bert Mooney Airport - Airport Information

Airport Details

ICAO Code: KBTM
IATA Code: BTM
Type: medium airport
Status: active
Elevation: 5,550 ft MSL

Location

City: Butte
Country: US
Latitude: 45.954800°
Longitude: -112.497002°
Time Zone: Etc/GMT+7

Runway Information

Runway 02/20
Length: 5,545 ft
Width: 75 ft
Surface: ASP
ILS: No
Runway 11/29
Length: 5,100 ft
Width: 75 ft
Surface: ASP
ILS: No
Runway 15/33
Length: 9,001 ft
Width: 150 ft
Surface: ASP
ILS: No

About Bert Mooney Airport

Overview

Bert Mooney Airport serves the Butte, Montana region as a medium-sized airport situated at a high elevation of 5,550 feet MSL. Located at coordinates 45.954800, -112.497002, the airport provides critical aviation infrastructure for southwestern Montana, supporting regional transportation and local aviation needs.

Flying Conditions

Pilots can expect predominantly VFR conditions 86% of the time, with marginal and instrument conditions occurring less frequently. The airport experiences significant temperature variation, ranging from -18°C to 26°C, with an average temperature of 2.7°C. Prevailing winds from the northwest at an average of 6.6 knots, with occasional gusts up to 31 knots, characterize the local wind environment.

Notable Features

The airport features three asphalted runways with substantial length, offering multiple landing options. Runway 15/33 is the longest at 9,001 feet, providing excellent operational flexibility for various aircraft types. The high elevation and surrounding terrain suggest potential density altitude considerations, particularly during warmer months.

Approach Considerations

All three runways demonstrate 100% favorable wind alignment, with modest average crosswind components (4.5kt, 4kt, and 3.5kt respectively). Visibility averages 9.5 statute miles, with minimal instances of reduced visibility (below 3SM occurring only 1.8% of the time). September, January, and November represent the most consistently favorable VFR months for operations.

Data Sources & Accuracy: Airport information sourced from OurAirports.com, a collaborative database of worldwide airport data. Weather data from official aviation weather services including NOAA Aviation Weather Center and international METAR/TAF providers. Information is updated regularly but pilots should always verify current conditions and NOTAMs through official channels before flight operations.

Official Data Sources

Weather NOAA Aviation Weather Center • International METAR/TAF Network
Airports OurAirports.com • Public domain airport database
NOTAMs FAA NOTAM System • ICAO NOTAM Distribution
Last updated: Jan 1, 1970 12:00 AM UTC

Disclaimer: Data is provided for informational purposes only. Pilots must verify all information through official sources before flight operations. Weather conditions change rapidly; always obtain a current briefing from approved weather services.