String Of 90° Days Begins

Sean Ash

That didn't take long. After a crisp morning in the 40s and 50s... temperatures soared 90° Friday afternoon marked the 23rd day this year Indianapolis hit 90°. A strong south-southwest wind, sunshine, and dry soil led to the 30°-40° temperature swing and sets the stage for a stretch summer heat into the middle of next week.

As expected, an area of heavy storms impacting north-central Indiana formed on the nose of the warm, humid air. It's going to be a close call, but we're expecting most of the storms this afternoon/evening and overnight to remain north of I-70.

However, the southern end of this initial line will back-build some and possibly reach parts of Boone/Hamilton/Madison counties by 7 PM. For most football games south of a Crawfordsville-Westfield-Munice line it's just going to warm and humid for Operation Football.

Due to heavy rain rates and potential of storms "training" over the same areas... flash flooding is possible north of that line this afternoon and into Saturday morning. We're expecting additional heavy storms to develop overnight into early Saturday morning... but again should stay mostly north of I-70.

In fact, there' s only a slight chance of rain for Central Indiana this weekend as the warm front surges north to the Michiana border. Heat dominates the weather story with near-record (91/1939) highs on Saturday and staying near 90° on Sunday too.

There's rather high confidence that daily record highs will fall Monday (89°/1971), Tuesday (89°.1897), and Wednesday (89°/1952) with the potential of the warmest October temperatures on record for Indianapolis... which is 91° in 2007.

To put this heat into perspective... since 1817 there have been only four October days in Indianapolis with highs of 90°+. We're forecasting three straight October days of 90° which would also be a record for Indy. Either way, this will be unseasonably hot stretch of days.

Relief won't come until late next week. Have a good weekend.