A dry, sunny climate predominates at Lake Roosevelt in the summer months. As you go father north, it becomes cooler and wetter. In the summer temperatures range from 75 to 100 degrees F during the day, and from 50 to 60 degrees F at night. Spring and fall are cooler but still pleasant.The weather can be dramatically different from one end of the lake to the other.
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Did You Know?
When the Grand Coulee Dam was finished and the lake filled, 11 towns were submerged. Every structure was cleared or burned. Soon, the rising waters covered the forlorn concrete foundations with water and darkness. Some towns died, others were built above the new lake, replacing what was lost.