Arctic air to send Chattanooga highs in 40s, lows in 20s later this week

Triad Electrical Contractors employee Patrick Duffey installs holiday snowflake lighting Monday high above the intersection at Fifth and Market streets.

So long, 70s.

The temperatures that began the week in Chattanooga will be gone in no time, giving way to highs only in the 40s by Thursday.

Lows will be in the 20s.

Both are well below the 60s and 40s that are typical for November here, said meteorologist Shawn O’Neill with the National Weather Service in Morristown, Tenn.