149 FPUS42 KMLB 200819 City Forecast for Daytona Beach, FL Issued Thursday morning - Oct 20, 2005 .Thursday... Partly cloudy, high 86, 20% chance of precipitation. .Thursday night... Low 73, 20% chance of precipitation. .Friday... Thunderstorm, high 85, 70% chance of precipitation. .Friday night... Low 71. .Saturday... High 85. 0