Overview
- Forecasters expect dense fog late tonight into early Wednesday in the Lower Susquehanna Valley, with visibility possibly dropping below one mile around Harrisburg and Lancaster.
- West winds will increase by daybreak Wednesday, with gusts of 25 to 35 mph as skies stay mostly cloudy but temperatures remain mild.
- Northwestern mountains could see rain change to a rain–snow mix by Wednesday morning, with a slushy coating possible.
- Highs climb into the 50s Thursday through Saturday, with periods of rain Friday into Saturday bringing roughly a half-inch to an inch in parts of the region.
- The warm spell is forecast to end Saturday night as a strong cold front ushers in a much colder, windier Sunday with lake-effect snow and gusts that may reach 30 to 40 mph.