Grand Teton National Park
large bull moose with giant antler rack, Grand Teton National Park
Weather
 


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The weather in Grand Teton National Park is unpredictable and can be severe. Always bring rain gear and warmer clothes even in summer. Expect cool alpine nights even if the days are very warm. Storms can hit fast and hard, so always be prepared. There is often a massive difference between the weather at the valley floor and the weather just a few thousand feet up in the mountains.

It can snow at any given time in the park. The majestic moutnain range can hide storm fronts, then spring them on you in the blink of an eye. Make sure you have a warm enough sleeping bag in all season. A good quality +35 synthetic should keep you covered from early June to the end of August. From there, you'll want a quality +20 down bag for fall, late fall and early spring.

Click for Jackson Hole, Wyoming Forecast  



Avg max high/low temp:

January: high 25.7, low 1.2
July: high 79.8, low 41.2
September: high 68.9, low 32.2

 

 

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big, windy lake with huge mountains in back