Current Weather
Raw METAR
Clouds - Visual Profile
Weather Briefing
IFRJohn Murtha Johnstown Cambria County Airport is currently reporting instrument flight rules (IFR) conditions with overcast skies at 700 feet and 6 SM visibility.
Wind Analysis
Winds are from the south-southwest (200°) at 4 knots.
Visibility & Ceiling
Visibility is 6 SM. The ceiling is 700 feet AGL (overcast). Only precision approaches may be usable depending on minimums.
Temperature & Moisture
Temperature is 19°C (66°F) with a dewpoint of 19°C. The temperature-dewpoint spread is very narrow, indicating saturated or near-saturated air. Fog formation or low cloud development is likely.
Forecast Outlook
The TAF forecast covers the next 23 hours. The forecast shows a transition between VFR and IFR conditions. Pilots should monitor the forecast closely and have an alternate airport plan. Expected weather includes: Light Showers Rain, Mist, Light Showers Rain, Light Thunderstorm Rain. There is a 30% probability of MVFR conditions with Light Thunderstorm Rain between 15:00Z and 16:00Z.
Pilot Recommendations
An instrument rating and IFR flight plan are required. Verify that destination and alternate approach minimums are above current and forecast conditions. The narrow temperature-dewpoint spread creates risk of fog formation, particularly during evening and early morning hours.
This briefing is generated from real-time METAR and TAF data. Always verify with official sources before flight.
Forecast (TAF)
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Airport Runway Layout
Runway Information
| Runway | Length | Width | Surface | Heading | Wind Component |
|---|---|---|---|---|---|
|
✈️ 05/23
Active: 23
|
4,386 ft | 100 ft | ASP | 39° |
↑ 3.5 kt
•
↔ 2.0 kt
30° angle
|
| 10/28 | 3,700 ft | 100 ft | ASP | 87° |
↓ 1.6 kt
•
↔ 3.7 kt
113° angle
|
| 15/33 | 7,003 ft | 150 ft | ASP | 144° |
↑ 2.2 kt
•
↔ 3.3 kt
56° angle
|
Weather Statistics - KJST
9,812 observations | Sep 2025 - Jun 2026Flight Rules Distribution
John Murtha Johnstown Cambria County Airport is frequently affected by reduced visibility conditions, with VFR weather only 48.7% of the time and IFR/LIFR conditions occurring in 21.5% of observations. Prevailing winds are from the W averaging 9.8 knots, with gusts recorded up to 38 knots. Temperature extremes range from -22°C to 29°C, reflecting significant seasonal variation. Low visibility conditions (below 3 SM) occur in 6.1% of weather observations. The best months for VFR flying are June, September, October.
Wind Analysis
Temperature Range
Visibility
Best Months for VFR
Runway Wind Analysis
Statistics computed from 9,812 METAR observations (Sep 2025 - Jun 2026). Data sourced from official aviation weather services. Updated daily.
John Murtha Johnstown Cambria County Airport - Airport Information
Airport Details
Location
Runway Information
Flight Planning Tools
Nearby Airports
About John Murtha Johnstown Cambria County Airport
Overview
John Murtha Johnstown Cambria County Airport serves the Johnstown region in Pennsylvania, providing a critical medium-sized airport facility for regional aviation operations. Located at an elevation of 2,284 feet MSL, the airport offers three asphalt runways with varying lengths, accommodating diverse aircraft types and operational requirements.
Flying Conditions
Weather conditions at KJST demonstrate significant variability, with visual flight rules (VFR) prevailing 47.3% of the time and marginal VFR conditions occurring 31.6% of observations. Wind patterns predominantly originate from the west at an average of 10 knots, with temperatures ranging from -21°C to 27°C and average visibility around 8.4 statute miles. Pilots should anticipate the most favorable visual flying conditions during September, October, and November.
Notable Features
The airport features three runways: 05/23 (4,386 ft), 10/28 (3,700 ft), and 15/33 (7,003 ft), providing multiple landing options for different wind conditions and aircraft capabilities. All three runways demonstrate 100% favorable wind alignment, with relatively low average crosswind components ranging from 4.6 to 7.5 knots. The airport's higher elevation and geographic location suggest potential terrain and atmospheric considerations for approach and departure.
Approach Considerations
Given the predominant westerly winds, pilots should be prepared for wind considerations during approaches and landings. The longest runway (15/33 at 7,003 ft) offers the most flexibility for larger aircraft and challenging conditions. Statistical data indicates potential challenges with reduced visibility, with 5.7% of observations showing visibility below 3 statute miles and 6.3% experiencing fog conditions.
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.
Learn More
Recommended guides based on current conditions at KJST
Official Data Sources
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.