Indianapolis

Indy Swelters as Brutal Heat Advisory Clamps City Through Thursday

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Published on June 29, 2026
Indy Swelters as Brutal Heat Advisory Clamps City Through ThursdaySource: Google Street View

Indianapolis is starting Monday under a muggy blanket of heat, waking up to clear skies, temperatures near 75°F, and humidity that makes it feel warmer than it looks on the thermometer. Afternoon highs are expected to land in the low 90s, and overnight temperatures will only slip into the mid-70s, which means not much relief after dark. A Heat Advisory begins at noon today and is set to run through 8 p.m. Thursday, so anyone planning outdoor work or activities should pace themselves.

What NWS Says

The National Weather Service office in Indianapolis has posted a Heat Advisory from noon today through 8 p.m. Thursday, with heat index readings projected to climb into the 105–108°F range. Forecasters are calling for highs near 93°F and sticky overnight conditions that keep lows in the mid-70s. For county-level breakdowns and updated hourly details, check NWS Indianapolis.

Afternoon Heat And Commute Tips

A few isolated rain showers may linger before about 7 a.m., but skies should turn mostly sunny for the afternoon. South to southwest winds stay on the lighter side, around 3–9 mph, which will not do much to cut the heat. The hottest stretch will be midafternoon, when the heat index can make it feel like the low to mid 100s. If you can, shift strenuous work to earlier or later in the day, take frequent breaks, and drink plenty of water. If you need a place to cool down, call 2‑1‑1 or visit Indiana 211 to look up cooling centers, libraries, or pools nearby.

Later This Week

The most intense heat is expected Tuesday through Thursday, with inland spots potentially reaching the mid-90s and heat indices staying in a dangerous range. The ridge of high pressure should start to ease late in the week, which will increase the odds of thunderstorms on Friday and into the holiday weekend. If you have July Fourth plans, keep an eye on forecast updates, since the timing and coverage of any storms are still uncertain. For ongoing alerts and safety information, visit NWS Indianapolis.