FPUS42 KMLB 251013 City Forecast for Daytona Beach, FL Issued Wednesday morning - Nov 25, 2009 .Wednesday... Thunderstorm, high 74, 80% chance of precipitation. .Wednesday night... Low 59, 40% chance of precipitation. .Thursday... Partly cloudy, high 70, 20% chance of precipitation. .Thursday night... Low 46. .Friday... High 63.