Indianapolis/ Weather & Environment

Foggy Indy Morning Sets Stage for Fierce Storms, Flash-Flood Fears

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Published on August 13, 2026
Foggy Indy Morning Sets Stage for Fierce Storms, Flash-Flood FearsSource: Google Street View

Indianapolis is starting Thursday under fog and mist, with temperatures near 68°F and visibility reduced for the morning commute. The gray opening is a prelude to a wetter, more disruptive pattern: scattered thunderstorms are expected this afternoon, with heavy rain and a renewed flash-flooding concern by tonight. The high should reach about 84°F.

Fog Clears Before Storms Build

Fog is expected to lift by around 9 a.m. Thursday, but drivers should use headlights, slow down and watch for low-lying roads where water may still be standing. Storm chances increase during the afternoon and evening, and the National Weather Service in Indianapolis says some storms could bring heavy rain and damaging wind gusts.

Flood Watch Runs Through Friday Morning

A Flood Watch remains in effect across much of central Indiana through Friday morning as additional rain moves over already saturated ground. Tonight could bring 1 to 2 inches of rain, while slow-moving storms may produce much higher totals in localized areas. Residents should avoid driving through flooded roads and follow National Weather Service flood safety guidance.

Storm Chances Linger Into The Weekend

Friday stays unsettled, with showers and thunderstorms likely before the afternoon and another high near 84°F. Scattered storms remain possible Saturday as temperatures climb to around 90°F, while Sunday brings more sunshine and another high near 90°F before storm chances increase late in the day.

Cooler, Drier Weather Arrives Next Week

A cold front should push through Sunday night into Monday, bringing a few more showers and storms before conditions turn drier and less humid. Monday's high is expected to reach about 83°F, followed by sunny skies near 82°F Tuesday and mostly sunny weather around 85°F Wednesday.