A cold front arriving Tuesday night will usher in autumn air to the Lehigh Valley, bringing cooler temperatures and breezy northeast winds. Residents can expect a significant drop in temperatures, with daytime highs dipping from around 80 Tuesday to the upper 60s to low 70s on Wednesday.

The cold front moving through will bring a dramatic shift in the weather pattern, according to the National Weather Service forecast. Overnight low temperatures will dip into the mid to upper 40s in the Poconos and northern areas, with the Lehigh Valley experiencing lows in the upper 40s to low 50s. While the front is expected to be relatively dry, it will dramatically change the atmospheric conditions, introducing a Canadian air mass to the region.

A cold front moving arriving Tuesday night will bring

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