Central Indiana has experienced another day without temperatures in the 90s which is a nice break from the heat wave last week. Unfortunately, it still isn’t refreshing outside because an ample amount of moisture is still in the air locally. Dew points this afternoon were near the 70 degree mark and this not only make the air feel thick but it resulted in a heat index in the upper 80s. With dew points so high, there’s no arguing that we are on the warm side of a stalled out boundary to our north, leaving us on the tropical side.
Storms are expected to develop in the overnight hours, first as scattered storms after 2 AM and turning into more widespread storms by 7 AM. The best chance of rain appears to be south of I-70 after checking several weather models. But if you are north of I-70, it doesn’t mean you are exempt from storm activity.
Scattered showers and thunderstorms will continue throughout Monday afternoon, finally diminishing after 7 PM.
We are still looking at a moisture rich atmosphere so any slow moving showers and storms or areas that see several rounds of storms could easily be looking at heavy rainfall amounts. But just like we experienced on Saturday, that doesn’t mean everyone will see drenching rainfall.
Scattered showers and thunderstorms will be possible again on Tuesday as a cold front slowly pushes through the state. This is going to bring yet another temperature drop for Central Indiana and another drop in humidity levels. Temperatures from Wednesday through Friday should only top out in the upper 70s with dry conditions and lower dew points. It will be a large departure from what is normal this time of year, which is 85°.