Indianapolis/ Weather & Environment

Indy Basks in Cool Sunshine Before Midweek Storm Threat Looms

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Published on August 23, 2026
Indy Basks in Cool Sunshine Before Midweek Storm Threat LoomsSource: Google Street View

Indianapolis is waking to clear skies and temperatures around 63°F Sunday morning, with one brief catch: patchy fog could linger until 9 a.m. Once it lifts, sunshine and a northwesterly breeze will carry the city toward a high near 78°F, making for a comfortable day outdoors.

Fog Fades As Afternoon Winds Pick Up

Visibility may be briefly reduced on some roads early Sunday, especially outside the city core, before the fog burns off. Northwest winds will run from 2 to 10 mph and could gust as high as 18 mph later in the day, while the chance of rain stays near zero in Indianapolis.

The National Weather Service Indianapolis office said isolated showers cannot be ruled out late Sunday afternoon or evening in far northeastern parts of central Indiana. No watches, warnings or advisories are in effect for the Indianapolis area.

Cool Nights Give Indy A Brief Reset

Sunday night will be mostly clear, with temperatures dropping to around 57°F. Monday stays mostly sunny with a high near 77°F, followed by a sunny Tuesday near 79°F and light winds.

Warmer Air And Storm Chances Return Wednesday

Temperatures climb into the low 80s Wednesday and Thursday, with a slight chance of showers and thunderstorms returning Wednesday evening. Thursday should be mostly sunny at first, but a 20% chance of afternoon storms could complicate late-day outdoor plans.

Friday looks sunny with a high near 81°F, while Saturday brings another mostly sunny day near 82°F and a slight chance of rain showers after 2 p.m. For Sunday, the practical plan is simple: allow extra time if fog appears early, then enjoy the sunshine once it clears.