Hourly Forecast Detailed. 0am:The Lake Park, GA forecast for Aug 14 is 80 degrees and Thundery outbreaks possible. There is 85 percentage chance of rain and 6 mph winds from the South-Southwest. 3am:The Lake Park, GA forecast for Aug 14 is 75 degrees and Clear. There is 93 percentage chance of rain and 4 mph winds from the South.