Grand Teton National Park
WYWEATHER INFO
Grand Teton National Park has long, cold winters—snow and frost are possible any month. April, May, & June - Mild days and cool nights alternate with rain and snow. July & August - Warm days and cool nights prevail, with afternoon thundershowers common. September, October, & November - Sunny days and cold nights alternate with rain and occasional snowstorms. December to April - Between storms the days are sunny and nights are frigid. Snow blankets the mountains and valley.
Weather @ Grand Tetonlast updated: 2 hrDIRECTIONS INFO
INFORMATION
Plan Ahead for 2026 Construction
Parkwide construction is planned for 2026 and may affect travel in some areas. Colter Bay is anticipated to be a good option for visitors. See the Road Construction page for the latest updates.
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Winter Seasonal Road Closures
Portions of the Teton Park Road (Taggart Lake TH to Signal Mt.), Moose-Wilson Road (Granite Canyon TH to Death Canyon Road), and other roads are closed to vehicles. Check the Grand Teton Roads page for the latest seasonal and weather related closures. When free of snow, Teton Park and Moose-Wilson Roads are available for pedestrian use, including walking and biking. After they are snow-covered: skiing, snowshoeing, and walking are allowed.
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