Grand Teton National Park is one of several regions in the United States of America, with temperatures that range from -2°C (28°F) in December to 26°C (79°F) during the peak of July. We've based our full climate overview on data from Jackson, the region's most prominent city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
The weather in Grand Teton National Park during June, July, August and September is comfortably warm, with average temperatures ranging from 20°C (68°F) to 26°C (79°F).
The coldest months are usually in January, February, March, April, November and December.
When it comes to rainfall, Grand Teton National Park experiences moderate variations in precipitation across the seasons. You can expect around 72 mm (2.8 in) of rain in December, dropping to 21 mm (0.8 in) in July.
July is the sunniest period, with ideal conditions for exploring the region and all it has to offer.
