1-3" of rainfall is likely total tonight-Sunday with much of it falling later tonight-Saturday morning & again Saturday night.
This evening, clouds will thicken with virga falling from the clouds with a blurry, fading, dim sun. Rain will try to fall, but with unseasonably low dew points in the 30s to 40s today, it will not reach the ground.
However, it will begin to reach the ground 11 p.m. & beyond as showers & then showers & storms blossom & become numerous overnight to Saturday morning.
As low-level jet transports unstable air atop more stable airmass near the ground, storms are likely, but they will be rooted above the more stable ground (resulting in what we call "elevated storms"). A couple/few isolated small hailers are possible. A random, isolated 1" diameter or "severe" hailer is possible.
Locally-heavy rainfall may result in ponding on area roadways.
Although the widespread morning rainfall will exit, as an MCV pivots through, a few scattered storms are possible in the afternoon. An isolated severe hailer is possible.
The only completely, solid dry time for Tippecanoe County looks to be 8-11:30 p.m.
As for the viewing area, the only completely solid dry time is 9-10:30 p.m.
Break will occur ahead of line of storms with the potential of a few scattered damaging (+58 mph), severe gusts embedded in a much larger swath of 30-45 mph gusts.
Highs Saturday will vary from 71 in the northeast to 82 in the southwest with around 78 at Greater Lafayette with humid to muggy dew points rising to 68-73.
Winds will run south to southwest at 15-30 mph off & on through the day.
Rainfall should exit late Saturday night, followed by dry weather much of Sunday with highs 80-86 with dew points muggy at 71-75.
However, a broken line of some storms is possible Sunday evening with the cold front sinking back southward. Isolated severe gust &/or severe hail is possible.
Right now, still leaning on dry weather Monday to Wednesday, before showers & storms return Wednesday evening.