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Best Times to Visit Grand Teton National Park

The best time to visit Grand Teton National Park is from mid-May to late September when all the visitor centers, hiking trails and other park activities, including kayaking and fishing, are open and accessible. Beginning in October, winter blows through the park, shutting down most of its facilities and roads. Still, winter is a prime time for cross-country skiing and snowshoeing. 

Weather in Grand Teton National Park switch to Celsius/mm

Average Temperature (°F)

Average Precipitation (in)

Data sourced from the National Climatic Data Center

Mid-May to Late September

Mid-May signifies the start of peak season at Grand Teton National Park. Average highs this time of year hover in the low 60s, but they'll rise to the lower 80s in July and August before descending into the 70s by late September. Tourist crowds and accommodation rates are at their highest levels of the year. Afternoon thunderstorms are common in July and August, so consider packing rain gear. 

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October to Early-May

In the wintertime, the weather is bitter with temperatures that regularly drop into the single digits. The snow falls heavy and accumulates quickly, which is one of the main reasons why many of the park's facilities, roads and accommodations shutter for the season. Still, it's the best time for cross-country skiers and snowershoers who want to make tracks across the remote winter wonderland. 

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