Indiana heat index to hit 100 as hot, dry pattern holds | July 14, 2026

INDIANAPOLIS (WISH) — Central Indiana is bracing for a prolonged stretch of intense heat as a strong ridge of high pressure becomes firmly established over the region. High temperatures are expected to climb into the low to mid-90s through Thursday, while heat index values — the combination of heat and humidity — will reach between 100 and 105 degrees each afternoon.

Today Through Thursday: Sustained Heat

A well-entrenched upper-level ridge will maintain hot, dry conditions through Thursday. Daytime heating coupled with suppressed atmospheric mixing will keep dew points elevated, and thus heat indices high, especially during peak afternoon hours between noon and 6 p.m.

Storm chances during this period are expected to remain very low as the stable, dry air mass suppresses convective development.

Late Week: Transition and Storm Chances

The heat will begin to subside by the end of the workweek as the high-pressure ridge weakens and shifts eastward. This opens the door for increased moisture return and the development of scattered showers and thunderstorms, particularly Friday and Saturday afternoons.

Models currently show some variation on the timing and extent of this moisture return, so forecasts may adjust as the weekend approaches.

Residual scattered storms will be possible into Sunday and Monday, but the main story shifts away from oppressive heat to more typical summer storm activity.

7 Day Forecast: