Latest Forecast

South-southwesterly winds of 10-20 mph on the backside of a high pressure system over the western Atlantic will usher hotter and more humid air into the Lower Susquehanna Valley this afternoon with high temperatures around 5-10 degrees above average. After a warm and muggy Wednesday night, skies will turn mostly cloudy Thursday morning in advance of an approaching cold front. Scattered showers and thunderstorms will then accompany the frontal passage Thursday afternoon and evening, but severe weather is not anticipated. Behind the front, light, northwesterly winds will usher cooler and less humid air into northern MD and southeastern PA on Friday. As a result, the week will wrap up on a mostly sunny and beautiful note with high temperatures around 80 degrees.

Latest Forecast(Forecasts are updated infrequently on weekends, holidays and during semester breaks.)
This afternoon Partly sunny, very warm and more humid with afternoon breeze. High: 86-90
Tonight Warm and muggy with increasing clouds. Low: 70-74
Thursday Mostly cloudy and humid with afternoon showers and thunderstorms. High: 84-88
Thursday Night Mostly cloudy, warm and muggy with an evening shower or thunderstorm. Low: 64-68
Friday Mostly sunny, cooler, pleasant and less humid. High: 78-82
Issued: Wednesday, September 09, 2026 at 12:20 PM (Doernberg, Morris, Zipko, Student Meteorologists)