DELMARVA - The stretch of pleasant weather across Delaware’s beach towns and inland communities will begin to change Friday evening as a system brings in rain, rising moisture levels, and continued allergy and air quality concerns.
High pressure currently anchored offshore in the western Atlantic is keeping conditions dry and mild across the region through the day on Friday. This return flow is ushering in above-average temperatures, especially for late April, with highs expected in the low to mid-70s for coastal areas and slightly warmer temperatures inland.
By Friday night, a warm front associated with an approaching low-pressure system in the Great Lakes will lift through the Mid-Atlantic. This will lead to an increase in cloud cover and the onset of scattered showers overnight. Rain will continue through Saturday, gradually tapering off by the evening. Delmarva, including towns such as Georgetown, Seaford, Lewes, and Rehoboth Beach, can expect around a quarter inch of rainfall. Though a few thunderstorms may pop up, severe weather is not anticipated, and flash flooding is unlikely.
Saturday will remain unsettled, with rain and overcast skies dominating as a cold front follows the warm front’s passage. The front is expected to push through the region by Saturday evening, setting the stage for a return to sunshine and breezy, seasonable weather on Sunday. Canadian high pressure will settle into the region, keeping skies clear and temperatures comfortable to start the new week.
Looking ahead to next week, high pressure shifts offshore and transforms into a Bermuda high pattern. As a result, unseasonably warm temperatures will build in, with highs climbing into the 70s on Monday and reaching into the 80s by Tuesday and Wednesday.
Air Quality & Allergies:
Residents and visitors should remain aware of ongoing environmental concerns. Air quality is expected to remain in the "moderate" range, with sensitive individuals advised to limit prolonged outdoor exposure. Additionally, tree pollen counts are elevated across the region, contributing to higher-than-usual allergy symptoms for many. Those with respiratory issues or seasonal allergies are encouraged to take precautions through the weekend.