Tonight will be our coldest night since April

AUSTIN (KXAN) -- WOW! What a difference a day makes. From 99º highs on Tuesday to afternoon highs in the low 70s today. For most of us this was a 20-30º temperature drop from one afternoon to the next.Officially today's high was 78º set just after midnight, but we've been cooler than that ever since.As the wind backs off tonight we'll find temperatures free falling down into the 40s by the time we start Thursday morning. Thursday morning should bring our coldest low temperatures s