Allentown, PA Weather Radar

About Allentown weather

Allentown is in Lehigh County, Pennsylvania, United States at 40.61°, -75.49°. Right now it’s 61° and clear; today’s high is 68° with a 0% chance of rain.

Pennsylvania has a humid continental climate with distinct seasonal changes that vary significantly across the state's diverse topography. The southeastern lowlands around Philadelphia experience milder winters and hotter summers than the mountainous interior. The Appalachian Mountains running through the center of the state create orographic effects that enhance precipitation and generate temperature contrasts between the eastern and western slopes.