Latest Forecast

In the wake of last night's cold frontal passage, northwesterly winds have ushered drier and slightly less humid air into northern MD and southeastern PA. High temperatures will top out in the mid 80s with dewpoints in the mid-to-upper 60s this afternoon under mostly sunny skies. After a mainly clear and mild Wednesday night, a vigorous, upper-level disturbance and secondary cold front will sweep through the Northeast on Thursday. The Lower Susquehanna Valley will be on the southern periphery of the disturbance, but a stray shower or thunderstorm cannot be ruled out between 3-9 PM, especially north of the Turnpike. However, most of the day should turn out mostly sunny and dry with moderately high humidity and highs in the mid 80s to perhaps 90°F. Behind the secondary front, a Canadian high pressure system will settle into the Commonwealth and promote sunny skies and pleasantly warm conditions on the 4th of July. Humidity will be even lower with dewpoints in the 50s, and the weather should be perfect for outdoor activities and evening fireworks displays! Temperatures will fall through the 70s between 8:30-10:30 PM under clear skies.