 Zimmerman & Company True Value, a mainstay on Main Street in Pendleton for over 85 years. Here's your Wild Horse Resort and Casino weather update for the Columbia Basin today. Sunny and warm with light winds in the afternoon. Today's high for Pendleton, 97, 100 for Hermiston, 99 for Walla Walla. Tonight, clear skies and overnight lows will be in the low to mid 60s. And the outlook for Friday, sunny and hot, highs in the upper 90s into the low 100s.