FPUS46 KSTO 200926 City Forecast for Red Bluff, CA Issued Thursday morning - Oct 20, 2005 .Thursday... Partly cloudy, high 75, 0% chance of precipitation. .Thursday night... Low 48, 0% chance of precipitation. .Friday... Sunny, high 81, 0% chance of precipitation. .Friday night... Low 49. .Saturday... High 79.