Current Weather
Raw METAR
Weather Briefing
VFRLemhi County Airport is currently reporting visual flight rules (VFR) conditions with clear skies and 10 SM visibility.
Wind Analysis
Winds are from the north-northwest (330°) at 4 knots.
Visibility & Ceiling
Visibility is 10 SM. Skies are clear with unlimited ceiling.
Temperature & Moisture
Temperature is 32°C (90°F) with a dewpoint of 8°C, indicating very dry conditions. High temperatures at this elevation may result in significant density altitude effects. Pilots should calculate density altitude and adjust performance expectations accordingly.
Forecast Outlook
The TAF forecast covers the next 24 hours. Conditions are expected to fluctuate between VFR and MVFR. VFR pilots should be prepared for deteriorating conditions. Expected weather includes: Light Showers Rain.
Pilot Recommendations
Conditions are favorable for visual flight. The forecast indicates conditions may deteriorate. Ensure you have fuel reserves and a viable alternate airport.
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 |
|---|---|---|---|---|---|
|
✈️ 17/35
Active: 35
|
5,150 ft | 60 ft | ASP | 188° |
↑ 3.8 kt
•
↔ 1.4 kt
20° angle
|
Weather Statistics - KSMN
7,478 observations | Sep 2025 - Jul 2026Flight Rules Distribution
Lemhi County Airport enjoys predominantly VFR conditions, with visual flight rules prevailing 85.4% of the time. Prevailing winds are from the N averaging 6.5 knots. Calm conditions occur 48.3% of the time. Temperature extremes range from -17°C to 32°C, reflecting significant seasonal variation. The best months for VFR flying are May, October, March.
Wind Analysis
Temperature Range
Visibility
Best Months for VFR
Runway Wind Analysis
Statistics computed from 7,478 METAR observations (Sep 2025 - Jul 2026). Data sourced from official aviation weather services. Updated daily.
Lemhi County Airport - Airport Information
Airport Details
Location
Runway Information
Flight Planning Tools
About Lemhi County Airport
Overview
Lemhi County Airport serves the Salmon, Idaho region as a medium-sized airport situated at an elevation of 4,043 feet MSL. Located at coordinates 45.122233, -113.881960, the airport provides critical aviation infrastructure in a mountainous region of the northwestern United States. Its single runway 17/35 offers 5,150 feet of asphalt surface for regional and general aviation operations.
Flying Conditions
Weather conditions at Lemhi County Airport demonstrate significant variability, with visual flight rules (VFR) prevailing 77.8% of the time. Temperature ranges from -15°C to 28°C, creating diverse flying environments throughout the year. October, September, and November present the most consistently favorable VFR conditions, while visibility averages 9.2 statute miles with occasional reduced visibility periods.
Notable Features
The airport's high elevation and mountainous terrain demand careful navigation and performance planning. Wind patterns are predominantly from the north (0°), with an average speed of 5.7 knots and potential gusts up to 28 knots. Calm wind conditions occur 53.8% of the time, which provides relatively stable approach and departure environments.
Approach Considerations
Runway 17/35 demonstrates excellent wind alignment, with favorable wind conditions 100% of the time and an average crosswind of only 2.9 knots. Pilots should anticipate potential instrument meteorological conditions (IMC), as IFR and LIFR conditions combine for approximately 14.5% of observations. Careful preflight planning and awareness of seasonal weather variations are recommended for safe 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.
Learn More
Recommended guides based on current conditions at KSMN
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.