Hot pattern pushes heat indices above 100° this weekend | Aug 15, 2025

August 15, 2025 morning forecast with Tara Hastings

INDIANAPOLIS (WISH) – Hot conditions for the weekend. Temperatures climb into the low and middle ’90s with heat indices topping out into the triple digits. The high heat will continue for the next several days.

We hit 91 yesterday and that was the 25th 90° day that we have seen this year. Indianapolis averages about twenty 90 degree days per year. We will continue to see 90 degree readings throughout the weekend and also into early next week as well.

TODAY: Humidity values are not bad this morning but they will increase throughout the afternoon. We will look for sunny, hot and humid conditions today. Look for a dry day with highs right around 90. The feels like temperatures later this afternoon will be into the low and possibly even middle ’90s.

TONIGHT: If you are heading to the fever game later tonight it is going to be a hot one heading into Gainbridge Field House. 

Overnight will look for mostly clear skies it will be muggy with lows near 71

TOMORROW: Sunny, hot and incredibly humid on Saturday. Look for high temperatures into the lower ’90s with heat indices around 100. If you’re going to be out at the LIV golf event or The Indiana State Fair heads up it is going to be a scorcher.

SUNDAY: Sunday and Monday will likely be the hottest of the days in this heat stretch. Partly cloudy skies on Sunday, hot and incredibly humid. It could be the hottest day of the year. Look for highs around 94 with heat indices between 100 and 105.

7 DAY EXTENDED FORECAST: A few spotty showers and thunderstorms possible late Monday under partly cloudy skies. It will continue to be hot and humid with highs near 94. Heat indices yet again near the triple digits. 

’90s once again on Tuesdays scattered showers and thunderstorms are possible. 

On Wednesday we begin to see the heat drop a little bit. We’ll see highs right around normal into the mid-80s.

Erin is continuing to move Westward in the Atlantic. It does look like it will stay away from making landfall in the US however that may slow our weather pattern down a bit. This means we could see the ’90s stick around for a couple more days. 

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