Delmarva is entering a prolonged stretch of hot and very humid weather that will continue through at least Tuesday. Daily chances for showers and thunderstorms will accompany the heat, with some storms capable of producing damaging wind gusts, torrential rainfall and localized flash flooding. A weak cold front Sunday may provide a brief break from the oppressive humidity before moisture surges back Monday and Tuesday. A stronger front could finally bring more noticeable relief by late Tuesday or Wednesday.

 

A warm front will bring scattered showers and thunderstorms to Delmarva today, with the greatest rain chances across the northern peninsula. Localized heavy rainfall could cause flash flooding. Hotter and increasingly humid conditions will then settle across the region through the weekend, when heat index values may reach or exceed 100 degrees.

Delmarva will enjoy a bright and much-improved start to the week today as Canadian high pressure brings wall-to-wall sunshine, though temperatures will remain below average. A weak front may bring light rain late Tuesday, but the better chance for widespread showers and a few storms arrives late Wednesday into early Thursday, with some storms possibly strong to severe.

Delmarva faces an unsettled Sunday with showers and thunderstorms, some potentially severe with damaging winds and localized flash flooding. A warm front moves through ahead of a weak cold front Sunday night, followed by a hot and humid start to the week before a stronger midweek cold front brings relief heading into next weekend.