Latest Forecast

A high pressure system centered just off the mid-Atlantic coastline will promote decreasing clouds, low humidity, and seasonable conditions this afternoon with high temperatures in the upper 70s to perhaps 80 degrees. The area of high pressure will shift farther offshore during the second half of the week. On its backside, strengthening, southwesterly flow will usher progressively hotter and more humid air into the Lower Susquehanna Valley from Wednesday to Friday. In addition, a pair of disturbances will move through the Commonwealth on Wednesday and Thursday and trigger scattered showers and thunderstorms each day. Coverage of storms should be greatest during the afternoon hours between 2-7 PM. Severe weather is not anticipated on Wednesday, but the most intense storms may produce frequent lightning, brief downpours, and wind gusts up to 40 mph. Thursday's storms may be more intense, but any severe weather should still be highly localized and in the form of damaging wind gusts up to 60 mph. Prior to the storms, high temperatures will reach the low-to-mid 90s with dewpoints in the low 70s. As a result, heat indices will reach dangerously high levels and exceed 100 degrees in many spots. Thus, it will be imperative to drink plenty of non-alcoholic beverages and take frequent breaks from the heat in an air-conditioned room or building to minimize the risk of contracting heat-related illnesses. Never leave children or pets unattended in a vehicle, either.