A warm Friday in the mid-60s across the Lehigh Valley will transition to scattered evening showers and a cold front that will usher in significantly cooler temperatures by the end of the weekend.

Residents can expect rain late Friday evening, with potential rainfall totals up to a quarter-inch.

The National Weather Service forecast includes an elevated risk for fire spread Friday across a region that includes eastern Pennsylvania. This is due to low relative humidity and dry southerly winds of 10-15 mph gusting to 20-30 mph.

A stray shower is possible northwest of the Lehigh Valley late Friday afternoon, ahead of the more substantial rainfall expected overnight as the cold front moves through the region.

Saturday will bring weak high pressure and some sunshine, with temperatures po

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