Latest Forecast

As northeasterly flow strengthens tonight into tomorrow, drawing moisture from the Atlantic up against the eastern slopes of the Appalachians, and interacts with a disturbance moving eastward from the Ohio Valley, steadier rain will overspread northern MD and southeastern PA this evening and then continue into tomorrow morning before tapering off during the afternoon and evening hours. Rainfall amounts should range from a few tenths of an inch across eastern PA to between 0.75-1.50" west of the South Mountain Range. A sprawling high pressure system over southeastern Canada will then build southward into New England during the middle of the week and force the rain farther south and west. However, skies should remain mostly cloudy on Wednesday with high temperatures around 10-15 degrees below normal. This trend will continue into Thursday with lingering breezy conditions and cooler temperatures.