It is a clear and muggy start at Indianapolis International Airport early Sunday, July 12, 2026, with temperatures hovering near 70°F and dewpoints sitting in the upper 60s. Sunshine is expected to break out by late morning and help push highs into the mid-80s. Northeast winds will crank up through the morning and could make the afternoon feel a bit blustery for outdoor plans. A stray light shower might drift through well south of the city, but most of Marion County should stay dry as high pressure settles in and sets the stage for a warmer week ahead.
Afternoon Winds And Warming Trend
Northeast winds are forecast around 6–10 mph with gusts near 20–25 mph this afternoon, with highs in Indianapolis topping out near 86°F. From there, temperatures climb steadily through the week: Monday near 88°F, Tuesday, July 14, near 92°F, and Wednesday, July 15, near 94°F. By mid to late week, peak heat index values will be pushing close to 100°F at times. This stretch of gusty breezes today followed by a steady warm up into the 90s comes from the National Weather Service Indianapolis.
Plan For The Day And The Week
If you are out and about today, bring a water bottle, grab shade during the hottest part of the afternoon, and secure any lightweight items that could get tossed around by the gusts. Looking ahead to the hotter days, Indy Parks and Recreation keeps a roster of daytime cooling centers, family centers, and splash pads operating around the city. For the latest locations and hours, you can call 2-1-1 and check the Indy Parks & Recreation cooling centers page.
Quick Forecast
Sunday, July 12: Mostly sunny with a high near 86°F and a breezy afternoon. Monday, July 13: Sunny and a bit warmer with a high near 88°F. Tuesday, July 14, and Wednesday, July 15: the warmest stretch of the week, with highs climbing into the low to mid 90s and heat index values near 100°F. A slight chance for a few showers returns later in the week. For full details, see the National Weather Service Indianapolis.
