FPUS46 KEKA 222130 City Forecast for Ukiah, CA Issued Tuesday afternoon - Jul 22, 2014 .Tuesday night... Low 56, 10% chance of precipitation. .Wednesday... Partly cloudy, high 83, 10% chance of precipitation. .Wednesday night... Low 57, 0% chance of precipitation. .Thursday... Sunny, high 94. .Thursday night... Low 61.