Indianapolis is starting Saturday, June 27, in full-on sauna mode: cloudy, muggy, and hovering near 70°F with the air hanging on to just about every drop of moisture it can. Scattered rain showers are likely through mid-morning, with thunderstorms expected to become more widespread this afternoon as the high climbs toward 81°F. A Flood Watch remains in effect for far southern portions of central Indiana through early this afternoon (until about 2 p.m. EDT) because slow-moving storms could dump heavy, localized rainfall.
When Showers And Storms Arrive
Scattered showers are expected before 11 a.m. on Saturday, June 27, with isolated storms between 11 a.m. and noon, then scattered thunderstorms continuing into the early afternoon. The best shot at storms lines up with the midday window. The forecast high is near 81°F, with roughly a 40% chance of precipitation during that midday peak. A few stronger cells could kick out damaging wind gusts, especially across the southwest half of central Indiana. Forecasters also flag training cells and slow-moving convection that could lead to short but intense downpours, according to the National Weather Service Indianapolis.
Flood Watch Areas And Safety Tips
The Flood Watch covers far southern parts of central Indiana, with the heaviest early-morning rainfall focused from Gibson and Pike counties east into Washington County, areas that have already picked up several inches over the last 36 hours. With saturated ground and slow-moving storms, flash-flood risk goes up on low-lying streets and at creek crossings, so never drive through standing water. For local context on how this multi-day threat is evolving, see coverage of storms stacking up over Indy.
Hot And Sticky Week Follows
Once this system finally moves out, high pressure moves in and the thermostat heads the other way. From Monday into midweek, highs are expected in the low-to-mid 90s, around 92 to 94°F, with heat indices topping 100°F on several afternoons. That stretch is likely to be the hottest run of the summer so far and will increase heat stress for outdoor workers and vulnerable residents. The National Weather Service Indianapolis forecast discussion highlights multiple 90-degree days next week and advises keeping an eye on heat guidance as the ridge strengthens.
Commute And Event Notes
For the morning commute, plan on leaving a little early to account for ponding and slow-moving showers or storms. Anyone banking on outdoor plans this afternoon should have a backup that involves a roof. If you are driving south of the city, be especially cautious around flooded streets and low spots, and move to higher ground if water starts to rise. Keep checking local forecasts through the afternoon for any updates to watches or warnings as storms bubble up.
