First Cold Shot of Winter to Arrive Late This Week

        The past several weeks have brought nothing but abundant warmth. Temperatures have reached the 60s and even low 70s across much of PA both Saturday and Sunday. But we knew that at some point winter had to show up.

        A deep trough will move into the Eastern US late this week and by Saturday highs in the 30s will be present throughout the entire state. This will continue into Sunday, through next Monday.

        Lake effect snow bands will likely setup in Northwestern Pennsylvania next weekend as heavy westerly winds blow over Lake Erie. At this time we do not expect significant snow accumulations but light to moderate snowfall is definitely not out of the question. Stay tuned!


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Josh Adams is the founder and lead forecaster of Pennsylvania Weather Action, a regional forecasting site he launched in 2015. With over a decade of experience analyzing weather patterns across Pennsylvania, his forecasts have reached millions of readers throughout the state. Josh specializes in Pennsylvania’s complex microclimates and terrain-driven weather patterns, providing detailed coverage of severe thunderstorms, winter storms, and flooding events. His forecasting focuses on delivering precise, timely information to help Pennsylvanians stay informed and prepared during impactful weather. Last Updated: March 10, 2026