Building heat and building storms in central Indiana | June 15, 2025

TONIGHT

Mostly cloudy skies hold in place for the overnight hours, with light northeast breezes around 5 to 10 mph. Most of the area stays dry, but a warm and somewhat muggy feel will persist, with lows settling near 66 degrees.

TOMORROW

Another round of spotty showers and storms may flare up in the afternoon, especially between 2 and 5 PM. While coverage looks limited, any cells that form could bring a quick downpour. Otherwise, expect a mix of sun and clouds with highs around 85 degrees. Winds will be light and variable, leaning slightly from the east.

TOMORROW NIGHT

Only a few showers or isolated thunderstorms may linger into the evening, mainly after 8 PM. Most areas will stay quiet overnight under mostly cloudy skies. Temperatures remain mild, with lows near 68 and light southeast breezes.

TUESDAY

The storm threat becomes a bit more noticeable on Tuesday. A few early showers are possible, followed by scattered thunderstorms developing after 11 AM. Some heavier downpours are possible in the afternoon, especially west of Indianapolis. Highs climb to around 88 degrees with southwest winds at 5 to 10 mph.

TUESDAY NIGHT

Storm chances continue overnight, with scattered showers and thunderstorms likely after midnight. Skies remain partly to mostly cloudy. It stays warm and humid, with lows only dipping to around 71 degrees. South-southwest winds continue near 5 to 10 mph.

WEDNESDAY

Storms become more widespread Wednesday as a stronger system approaches. Expect showers and thunderstorms throughout the day, with the highest likelihood after 2 PM. Some storms could turn strong or severe, especially later in the afternoon and evening. Highs reach the mid 80s, and winds pick up from the west-southwest at 10 to 15 mph, gusting to 20 mph. Rain chance: 80%.

WEDNESDAY NIGHT

Storms and locally heavy rain continue into the night, especially before 2 AM. Rain and thunder may linger through the early morning hours. Lows hold near 69 degrees with southwest winds around 10 mph and gusts to 20 mph. Rain chance: 80%.

THURSDAY

The front begins to shift east, but a few lingering storms remain possible during the afternoon, especially east of I-65. Partly sunny otherwise, with a high near 83. West winds around 10 mph. Rain chance: 30%.

THURSDAY NIGHT

Any remaining showers should taper off before midnight. Mostly clear and a touch cooler overnight, with a low near 64 and calm winds.

7 DAY FORECAST

Expect a warm and active stretch of weather across central Indiana this week. Monday will bring just a slight chance of an afternoon pop-up storm, with highs in the mid 80s. Rain and storm chances ramp up Tuesday, with scattered storms likely by afternoon and highs nearing 90. The most active day looks to be Wednesday, when widespread showers and thunderstorms are likely, some of which could turn strong to severe. After a lingering morning storm or two on Juneteenth, skies should trend drier and partly sunny with highs in the low 80s. A quieter and warmer pattern builds in Friday with sunshine returning and highs in the upper 80s. The heat builds further this weekend, with mostly sunny skies and temperatures reaching the low 90s Saturday and Sunday. Heat indices may approach or exceed 100 degrees by Sunday afternoon.