Through the short-term, there are two words that will sum up Indiana’s weather: Dry and Hot. We’re entering a stretch where the overall weather pattern will promote an expanding hot dome in the coming days, and put many communities across the state solidly in position to break the 90° mark on multiple days.
Expanding upper ridge means hot times loom late weekend into early next week.
However, this increasingly hot and dry pattern will be a transient one. This morning’s European model shows the evolution to cooler and increasingly wet, unsettled times nicely as we progress into the 6-10 day period.
The GFS ensemble would also agree in the overall pattern shift back to cooler and unsettled conditions as early as mid-late next week.
The 10-day GEFS ‘mean’ is a beautiful sight as moisture returns.
Updated 7-day out later this afternoon! Enjoy a beautiful Saturday, friends!
However the cold air won’t last and milder times will return by the second half of the weekend. This back and forth “tug of war” type regime will remain as cold and warmth (relative to average) continue to battle over the upcoming couple weeks. The latest European ensemble shows this nicely.
This also favors a rather active pattern and confidence is high on a wetter than average period upcoming over the next couple weeks. See the GFS ensembles support this idea. A couple strong storms are also possible Tuesday.
Unfortunately for snow lovers, the majority of significant moisture should fall as rain. Best snow chances appear to come with “backlash” wrap around snow showers and squalls Tuesday night into Wednesday morning. Accumulating snow is possible, but most amounts should be light. We’ll keep an eye on it.
Longer-term, the fight continues deeper into the month. As 
Since then, the European has begun to lock-in to a trend of bringing that SW energy out quicker and, in return, igniting a surface low to develop in the western Gulf of Mexico (GOM) Saturday before tracking northeast into the TN Valley (Sunday) and Great Lakes region (Monday).
Taken verbatim, this would spread a cold rain into central IN Sunday before colder air begins to change the rain over to a wet, heavy snow Sunday night into Monday morning across central IN. Heavy, wind-blown, snow amounts would result with such a solution for portions of central IN. Such a scenario would be a high-impact event. While the majority of model data (factoring in the GFS and Canadian, for example) is far from agreeing on such a solution, it’s important to note that a trend of such a scenario is beginning to develop within the powerful European forecast model. Furthermore, roughly half of the European’s (51) ensemble members agree on an impactful winter event in the Sunday-Monday time period for central Indiana.
