NORTH PLATTE, Neb. (KNOP) - After a cool and quiet night with lows dropping into the mid-50s, Juneteenth will bring a mix of sunshine and clouds with a slight chance for a few morning showers and thunderstorms. Most of the holiday will remain pleasant, with afternoon highs reaching the lower 80s and light southwest winds. Friday stays warm and mainly dry, although an isolated thunderstorm cannot be ruled out.