Seasonable conditions will prevail across the Lehigh Valley on Friday with highs in the upper 60s, according to the National Weather Service forecast.
A significant warming trend begins Saturday as an upper-level ridge builds into the eastern United States. High temperatures will climb into the mid-80s to low 90s from Sunday through the middle of next week.
Friday is forecast to remain mostly cloudy with increasing sunshine expected this afternoon. Northwest winds at 10 to 15 mph with gusts around 20 mph will accompany the seasonable conditions. Surface high pressure builds in Friday night, setting the stage for the warming pattern ahead…