Indianapolis, IN – Sweltering summer heat is locking in across Indianapolis through Sunday, with afternoon highs pushing into the low 90s and steamy conditions for outdoor plans.
According to the National Weather Service, calm winds and mostly clear skies will dominate central Indiana, keeping the region dry but hot through the weekend. Heat builds Friday and Saturday, with south winds adding to the humidity and high temperatures near 92°F each afternoon. Evenings will offer only modest relief, with overnight lows hovering in the lower 70s.
Local roads and neighborhoods will feel the brunt of the persistent heat, especially during midday hours. Residents should stay hydrated, limit strenuous activity outside, and check on pets or vulnerable neighbors. Outdoor events like the State Fair and farmers markets are on, but shade and water breaks are a must.
A change arrives late Monday as a 30–40% chance for thunderstorms develops—mainly after sunset—potentially bringing gusty winds, brief downpours, and a welcome cool-down for the work week. Rain chances linger through midweek, with highs easing back into the upper 80s by Wednesday.
This hot stretch is typical for August but could be the last surge before cooler, back-to-school weather sets in. More weather updates and possible advisories are expected as storms approach Monday night.
Five Day Forecast for Indianapolis, IN:
- Friday: Hot, sunny, calm wind. High 91°F, low 72°F
- Saturday: Hot, sunny, south breeze. High 92°F, low 71°F
- Sunday: Mostly clear, continued heat. High 91°F, low 72°F
- Monday: Sunshine early, storm chances at night. High 91°F, low 73°F
- Tuesday: Isolated showers, partly sunny. High 89°F, low 71°F
