A low pressure system is expected to track across Kentucky on Tuesday, spreading rain across central and southern Indiana through the day. At this time, the morning hours will have the best chance of rain, with a possibility of the rain ending during the afternoon. If it ends early enough, there may be time of dry the track and get a little practice in late in the afternoon, but I'm not optimistic that there will be any running on Tuesday.
High pressure over the Great Lakes will be building over the area on Wednesday, providing sunny skies and fairly cool temperatures in the 60s to near 70 in the afternoon. Thursday will be nice as well, with a chilly start to the day followed by sunshine and highs in the 70s.
Friday and Saturday are rather uncertain at this time. The models are showing a cold front moving through, but they do not agree on the timing. The chance of rain could be anytime between noon on Friday and noon on Saturday. Although the forecast has a chance of rain and a low impact both days, rain will probably affect the Speedway on only one of those days. It is possible that the front and the showers could move through Friday night, with no impact on the sessions. That is the best case scenario. As we get closer to the weekend, I'll have a forecast update with a better estimate on the timing of the front.
Sunday looks great with mostly sunny skies and highs in the 70s.