Latest Forecast

Light rain will return this afternoon and overspread northern MD and southeastern PA from southwest-to-northeast between 2-7 PM. Due to the clouds and wet weather, high temperatures will be around 15°F below average and generally in the low-to-mid 60s. A storm system will develop in the Ohio Valley tonight and slowly track into the eastern Great Lakes region by Saturday night. As a result, rainfall intensity will gradually increase tonight, and periods of steady rain will then soak the Lower Susquehanna Valley for the start of Memorial Day Weekend. In fact, Saturday will be a total washout and also breezy and unseasonably cold. Easterly winds of 12-25 mph will accompany high temperatures in the low 50s Saturday afternoon, making it feel more like early March than late May. Light rain will continue into Saturday night before gradually tapering off early Sunday morning, but easterly flow will cause low clouds and drizzle to linger on Sunday. Fortunately, winds will subside on Sunday, and it should turn somewhat milder with highs in the low-to-mid 60s. Most areas will receive 1-2" of beneficial rain through Sunday morning with locally higher amounts up to 3". Keep an umbrella, rain gear and jacket handy over the next few days, and expect areas of slow travel and standing water on roadways and in low-lying, urban- and poor-drainage areas. If possible, cancel outdoor plans on Saturday and reschedule them to Sunday or Monday.