 Here's your Wild Horse Resort and Casino weather update for the Columbia Basin today. Widespread haze, sunny and hot with Pendleton reaching a high of 99. 103 in Hermiston, 102 for Walla Walla. Tonight, widespread haze, otherwise mostly clear with light winds. Look for overnight temperatures to be in the low to mid 60s. For breaking news, weather and more, download the Elkhorn mobile app at ElkhornMediaGroup.com.