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 one more pleasant and mostly sunny day Monday before humidity, showers and strong thunderstorms return Tuesday.
Temperatures near 100 degrees and heat index values as high as 109 will make Wednesday dangerously hot before Canadian wildfire smoke spreads across Delmarva.
Showers and thunderstorms are expected to develop across Delmarva today, with damaging wind gusts and localized flash flooding the main concerns.
Sussex County can expect a calm, comfortable start to the weekend before unsettled weather returns Monday.
Delmarva stays sunny, dry and hot today as high pressure keeps control of the forecast. Inland highs climb into the low to mid 90s, while the beaches stay cooler in the mid 80s. Heat and humidity build Saturday before a cold front brings isolated storm chances Sunday, especially across southern Delmarva.
Delmarva has one more unsettled day ahead as a cold front approaches from the northwest. A Yellow Alert is in place for the threat of strong to severe thunderstorms this afternoon into early evening, with damaging wind gusts the main concern. Drier, more comfortable weather returns Thursday through the weekend.
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.
