Heavy rain will continue Saturday evening with most areas receiving 2" to 4" of rain by the time its wrapped up. Street flooding and reduced visibilities will be likely this evening. Flash flooding is occurring across central Indiana right now, with warnings in place for Marion, Hancock, Shelby, Johnson, Morgan, Hendricks, Putnam, Barthlomew, Brown, Monroe, Owen, Greene, and Lawrence counties. Very heavy rainfall is likely, training over areas that have already received 2" to 3" of rain since yesterday.
Rain will taper off after midnight tonight and temperatures will slowly rise into the mid 40s by 5am. The winds will shift out of the northwest and much colder air arrives. Temperatures will slowly fall throughout the day, down into the mid 30s by late afternoon.
A few light showers will be possible through Sunday afternoon and then a few light snow showers will be possible by Sunday evening.
Arctic air arrives on Monday with temperatures running nearly ten degrees below normal. A few snow showers will be possible on Monday.
Christmas Eve day will be dry and partly sunny. There is a chance of a few snow showers late day on Christmas, otherwise, it will be a dry day with partly sunny skies.