Tuesday Evening Weather Notebook…

It’s been a cool and dry start to the month of September. Through the first few days, IND is running 0.70° below normal and 0.44″ below average precipitation. 

The upper ridge currently in place will deliver more late summer heat through the end of the work week. It’ll remain mostly dry, as well. 

Much better rain and storm chances will have to be built into our forecast Friday into Saturday, courtesy of a cold front moving into the region. 

A much cooler regime will settle into the region over the weekend. Highs behind the front in the 70s with lows in the 50s will be common- after rain potential of 1″-1.5″ for most. 

A reinforcing shot of cool air will arrive the middle of the following week. Early indications suggest the second shot of fall-like air will be even cooler than this weekends’ and could feature widespread 40s at night.