Jackson Hole Airport

KJAC / JAC

Jackson, US

Last Updated
Jul 27, 18:56Z

Current Weather

Display Units
Fresh 26 min ago
18:56Z

🌇 Dusk
VFR
Flight Rules
24°C
Temperature
Dewpoint: 12°C
0 kt
10 SM
Visibility
9,000 ft
Ceiling
Above Ground Level
1025 hPa
QNH
Altimeter Setting

Raw METAR

METAR KJAC 271856Z 00000KT 10SM BKN090 BKN110 24/12 A3028 RMK AO2 SLP180 T02440117

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 6,451 ft
BKN 9,000 ft AGL
BKN 11,000 ft AGL
☁️
BKN
Broken (5/8-7/8 sky coverage)
9,000 ft
AGL (Above Ground)
15,451 ft AMSL
☁️
BKN
Broken (5/8-7/8 sky coverage)
11,000 ft
AGL (Above Ground)
17,451 ft AMSL

Weather Briefing

VFR

Jackson Hole Airport is currently reporting visual flight rules (VFR) conditions with broken clouds at 9,000 feet and 10 SM visibility.

Wind Analysis

Winds are calm, presenting no crosswind concerns for any runway.

Visibility & Ceiling

Visibility is 10 SM. The ceiling is 9000 feet AGL (broken), well above standard VFR minimums.

Temperature & Moisture

Temperature is 24°C (75°F) with a dewpoint of 12°C, indicating relatively 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 Thunderstorm Rain. Winds are forecast to reach up to 20 knots during the period. Expect variable wind speeds ranging from 3 to 20 knots. There is a 30% probability of MVFR conditions with Light Thunderstorm Rain between 21:00Z and 03:00Z.

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.

QNH
1025 hPa
Sea Level Pressure
For altitude above MSL
QFE
810 hPa
Field Pressure
Height above aerodrome (6,451 ft)
Pressure Alt
6,099 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 8,727 ft (High - Reduced Performance)
ISA Deviation: +21.9°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF KJAC 271738Z 2718/2818 02011KT P6SM VCSH BKN090 PROB30 2721/2803 VRB20G35KT 6SM -TSRA OVC080CB FM280300 03008KT P6SM VCSH BKN080 FM280700 VRB03KT P6SM FEW080
Upcoming Changes (Next 12 Hours)
19:22Z BASE
+0h
VFR 20° 11 kt
Visibility: >6SM
Ceiling: 9,000 ft
21:00Z PROB30
+2h
MVFR VRB 20 kt
Visibility: 6SM
Ceiling: 8,000 ft
Light Thunderstorm Rain
03:00Z FM280300
+8h
VFR 30° 8 kt
Visibility: >6SM
Ceiling: 8,000 ft
07:00Z FM280700
+12h
VFR VRB 3 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
JAC
01
19

Runway Information

Runway Length Width Surface Heading Wind Component
01/19 6,300 ft 150 ft ASP 19°
0.0 kt 0.0 kt
19° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KJAC

8,896 observations | Sep 2025 - Jul 2026

Flight Rules Distribution

VFR
76.8%
MVFR
13.2%
IFR
7.4%
LIFR
2.6%

Jackson Hole Airport typically experiences VFR conditions 76.8% of the time, though instrument-rated pilots will find IFR weather present approximately 10% of observations. Prevailing winds are from the S averaging 8.4 knots, with gusts recorded up to 37 knots. Calm conditions occur 15.9% of the time. Temperature extremes range from -26°C to 34°C, reflecting significant seasonal variation. The best months for VFR flying are July, June, May.

Wind Analysis

Prevailing Direction: S (180°)
Average Speed: 8.4 kt
Maximum Recorded: 37 kt
Calm Winds: 15.9%
Direction Distribution:
E
2.7%
N
16.3%
S
21.9%
W
8.5%
NE
8.1%
NW
2.8%
SE
2.7%
SW
20.9%

Temperature Range

Average: 3.4°C
Range: -26°C to 34°C
-26°C 34°C

Visibility

Average: 9.2 SM
Below 3 SM: 3.7%
Fog Frequency: 0.9%

Best Months for VFR

July June May

Runway Wind Analysis

Runway 01/19
Favorable wind: 100%
Avg crosswind: 3.5 kt

Statistics computed from 8,896 METAR observations (Sep 2025 - Jul 2026). Data sourced from official aviation weather services. Updated daily.

Jackson Hole Airport - Airport Information

Airport Details

ICAO Code: KJAC
IATA Code: JAC
Type: medium airport
Status: active
Elevation: 6,451 ft MSL

Location

City: Jackson
Country: US
Latitude: 43.607300°
Longitude: -110.737999°
Time Zone: Etc/GMT+7

Runway Information

Runway 01/19
Length: 6,300 ft
Width: 150 ft
Surface: ASP
ILS: No

About Jackson Hole Airport

Overview

Jackson Hole Airport serves the Jackson Hole valley in western Wyoming, situated at a high elevation of 6,451 feet MSL. The airport supports regional and tourism-related air traffic in a mountainous environment, providing critical transportation access to Grand Teton National Park and surrounding wilderness areas.

Flying Conditions

Weather conditions at KJAC demonstrate significant variability, with Visual Flight Rules (VFR) conditions predominating at 73.2% of observed periods. Temperature ranges from -23°C to 25°C, creating potential challenges for aircraft performance, while prevailing winds from the south average 8.2 knots with occasional gusts up to 31 knots.

Notable Features

The airport's high elevation and surrounding mountainous terrain present critical considerations for pilot navigation and aircraft performance. Runway 01/19 is 6,300 feet long with an asphalt surface, and wind conditions are favorable for this runway orientation 100% of the time, with an average crosswind component of only 3.1 knots.

Approach Considerations

Pilots should anticipate generally stable approach conditions, with excellent visibility averaging 9 statute miles and minimal fog occurrence (0.4%). September through November represent the most consistently favorable VFR months, offering the most predictable flying conditions for arrivals and departures at this alpine airport.

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.