If you enjoyed Thursday’s mild temperatures, then I think you’ll like today’s weather as well! Lows tonight will drop back into the mid 30s (3 degrees Celsius). Highs near 50 degrees (10 degrees Celsius). Highs should be near 50 degrees (10 degrees Celsius). November 20 Detroit weather triviaToday’s record high is 70 degrees (21 degrees Celsius), set in 1942.