High pressure brings mostly dry and warm weather to Delmarva Friday with highs in the upper 70s to low 80s. Clouds increase Friday night into Saturday as a weak upper-level system approaches, bringing periods of rain late Saturday into early Sunday. Temperatures remain seasonable through the weekend, tropical moisture may impact the region early next week. 

Delmarva will experience unseasonably warm and humid conditions through Thursday, with highs in the upper 70s to mid-80s and dew points in the 70s. Scattered showers and isolated severe storms are possible Thursday PM, with the Storm Prediction Center placing the entire peninsula under a marginal risk for damaging winds. Rainfall totals could reach 1 to 2 inches before a cold front moves through by late week.

Sussex County will see periods of showers, breezy winds, and near-normal temperatures from late Tuesday into Thursday before conditions turn drier.

Delmarva will see dangerous heat and humidity Friday, with heat index values reaching up to 108 degrees and a Heat Advisory in effect. A cold front arriving late Friday will bring a chance of isolated storms, mainly north of Sussex County, before lingering near the region through Saturday and lifting north as a warm front Sunday. The weekend will be unsettled but not a total washout, with additional storm chances Sunday night. High pressure returns Monday before another frontal system arrives midweek.

Sunday will be hot and humid across Delmarva with temperatures rising into the upper 80s and low 90s and heat index values between 100 and 104 degrees. A cold front approaching from the northwest could trigger isolated storms late in the day, some of which may become severe. After the front moves through, high pressure will bring more comfortable and dry conditions through Wednesday before heat and humidity return late in the week.

Saturday afternoon will kick off a stretch of warm and muggy weather across Delmarva, with partly sunny skies and highs in the 80s. While most of the region should stay dry this weekend, low clouds and patchy fog will return overnight, and a few isolated thunderstorms are possible Sunday over the Eastern Shore. By Monday, an approaching cold front will bring more widespread showers and storms. Temperatures will remain above normal into late next week, with heat indices potentially nearing 100 degrees.

A stretch of warm and humid weather will settle over Delmarva through the weekend and into next week. Saturday and Sunday will bring partly sunny skies and temperatures climbing into the 80s, with low clouds and morning fog each day. While most of the region should stay dry through Sunday, a stronger cold front arriving late Monday is expected to trigger more widespread showers and thunderstorms. Highs will remain above normal all week, and heat indices may approach 100 degrees in some locations by midweek.

Sussex County will see hot and humid conditions through Sunday, with scattered showers and thunderstorms mainly inland and occasional fog overnight.

Seasonably warm and increasingly humid conditions will build across Delmarva Sunday afternoon as high pressure shifts offshore. Highs will reach into the 80s to near 90, with an isolated thunderstorm possible by evening. By Monday and into midweek, a tropical air mass will set the stage for daily rounds of showers and thunderstorms. Some storms could produce heavy rainfall, localized flooding, and dangerous heat indices approaching 100 degrees inland.

High pressure offshore will usher in warmer and more humid air over Delmarva on Sunday, with highs climbing into the 80s to near 90 and muggy nights returning. While most areas should remain dry through Sunday, an isolated thunderstorm cannot be ruled out. By Monday and into the rest of the week, tropical moisture and unstable conditions will bring daily chances for showers and thunderstorms, some capable of heavy rainfall and localized flooding.