The longest day of the year is Friday – the Summer Solstice. June 21st marks the official start of summer on the calendar. The sun will rise at 5:34 a.m. and set at 8:44 p.m. for a total of 15 hours and 10 minutes of sunlight. Due to the Earth’s tilt in its annual revolution around the sun on this day, the sun shines directly over the Tropic of Cancer. High temperatures Friday are expected to be in the upper 70s with a chance of thunderstorms, listen to KCII for weather updates.