Delmarva will see heat and humidity surge back into the region Saturday as a warm front lifts north, pushing temperatures near 90 degrees and sending heat indices above 100 in some areas. Spotty storms may develop during the afternoon, with a cold front arriving by Saturday night. The front is expected to stall near the region Sunday, offering some temporary relief from oppressive humidity. Another warm front and cold front combination early next week will bring additional chances for showers and storms before a more stable pattern returns midweek.