DELMARVA - Coastal Delaware will remain under the influence of a slow-moving upper-level weather system from early Tuesday morning through late Wednesday, keeping the region locked into a pattern of unsettled skies, periodic rain, and spotty thunderstorms.
Tuesday begins on a damp and foggy note along the coast, with low clouds and limited visibility during the morning commute. Areas such as Dewey Beach, Lewes, and Fenwick Island may experience dense fog, especially before 9 a.m., as humid onshore flow holds steady. Overnight lows in the upper 50s to low 60s will give way to warmer conditions later in the day.
As the day progresses, a developing southerly wind will help break up some of the marine layer, allowing partial sunshine to emerge—especially inland. This added heating may destabilize the atmosphere just enough to spark scattered showers and thunderstorms Tuesday afternoon and early evening. While most storms will remain below severe limits, brief gusty winds, small hail, and downpours are possible, particularly away from the immediate shoreline.
By Tuesday night, the slow-moving upper-level low begins to shift northeast toward Pennsylvania and New Jersey. Still, Sussex County may see lingering showers and occasional rumbles of thunder through the overnight hours. Low temperatures will stay mild, dipping only into the low 60s.
Wednesday brings a gradual drying trend, but clouds and occasional light showers may persist into the early afternoon. Temperatures along the coast should reach the lower 70s with breezy conditions picking up by evening. While not a washout, beachgoers and boaters should keep an eye on the radar through midweek, as conditions may change quickly with the departing system.
By late Wednesday night, the weather pattern will briefly stabilize before another upper-level trough approaches the region Thursday, bringing yet another chance for rain before the weekend.
