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.
Click on the following districts to get the most current weather.
Did You Know?
Lake Roosevelt is the primary flood control reservoir on the Columbia River. The lake level can rise up to 4 feet per day in spring and drop 1 foot per day in summer. When shoreline camping, find out what the lake level is and don't put a tent close to the water unless you want a chilly surprise.