Ski & ride season (Jackson Hole, Snow King & Grand Targhee) (Late Nov – early Apr). Legendary steeps on the Wyoming side and deep, dry powder at Grand Targhee on the Idaho side.
Jackson Hole ElkFest & Antler Auction (Mid-May). The world-famous antler auction on Jackson's Town Square, plus a chili cook-off and vendors.
Old West Days (Late May (Memorial Day weekend)). Western heritage festival in Jackson with a parade, stagecoach rides, rodeo and live country music.
Grand Teton National Park summer season (Jun – Sep). Peak months for hiking, wildlife viewing, boating and scenic drives on the Wyoming side.
Teton Valley Balloon Rally (Driggs, ID) (Early July (July 4th weekend)). Dozens of hot-air balloons lift off at dawn over the Idaho side with the Tetons behind them.
Music festivals at Grand Targhee (Idaho side) (Summer weekends (Jul – Aug)). The Targhee Bluegrass and Music festivals bring live acts to the base of the range's west slope.
Jackson Hole Fall Arts Festival (Second week of September). A premier Rocky Mountain art festival — gallery walks, the QuickDraw and Palates & Palettes.