Delmarva will see a mild start today with highs reaching the upper 60s to near 70 and just a slight chance for a light shower. Warmer-than-normal weather continues Thursday with temperatures climbing into the low to mid 70s, but a backdoor cold front brings cooler conditions Friday. The biggest weather change arrives this weekend, when a developing low pressure system is expected to spread widespread rain across the region along with much chillier temperatures.