FAA data valid effective Sep 14 2017 - Oct 12 2017 (unless otherwise noted).
Airport Weather Forecast for GARDINER Airport (29S)
201755Z Yellowstone, West Yellowstone, MT (KWYS). Sep 20, 1755Z, Automated, Wind from 220° at 12 knots with gusts to 18 knots, 10 statute miles visibility, Few clouds at 4,700 feet, Ceiling is Broken at 6,500 feet, Overcast at 7,500 feet, Temperature 3°C, Dewpoint 0°C, Altimeter is 29.79, Remarks: automated station with precipitation discriminator
Wind from 220° at 12 knots with gusts to 18 knots
10 statute miles
Ceiling is Broken at 6,500 feet