Indianapolis is waking up muggy in the low 70s with mostly clear skies, but scattered showers and thunderstorms are set to fire up on and off through the morning and into the afternoon. The forecast high today is near 90 degrees, and when you mix in the humidity, heat-index values could creep into the triple digits. Southwest winds will pick up this afternoon, gusting into the mid 20s, and brief heavy rain or lightning could slow commutes wherever storms pop up.
Scattered Storms This Morning And Afternoon
Showers and thunderstorms are expected before about 8 a.m., then again through midmorning, tapering to more isolated storms by midday. The overall chance of precipitation is around 50 percent, with new rainfall amounts generally under a tenth of an inch, though localized heavier downpours are possible. For timing and updates, see the National Weather Service Indianapolis.
Hot, Humid Afternoon
Highs will hover near 90 degrees with dew points in the low to mid 70s, making it feel several degrees hotter than the thermometer reads. That setup raises heat stress for older adults, small children and anyone doing physical labor outdoors. Drink plenty of water, limit strenuous work during peak heat, and check on neighbors who do not have air conditioning. Expect southwest winds around 6 to 13 mph with gusts into the mid 20s.
Tonight Into Thursday Night
Storms that develop this evening may consolidate and slide southeast out of Illinois, bringing the risk of strong, gusty winds and localized flooding overnight. Forecast guidance also points to another, possibly more energetic round of storms late Thursday into Thursday night that could become strong to severe in spots, so keep an eye out for watches or warnings. Secure lightweight items at outdoor gatherings and be ready to head indoors quickly if storms approach.
Where To Cool Off
If you do not have air conditioning, public spots such as Indy Parks family centers and Indianapolis Public Library branches often serve as temporary cooling spaces during heat spells. To find an open cooling center near you, call 211 or visit Indiana 211 for up-to-date listings and hours. Take basic precautions: avoid prolonged sun exposure during the hottest part of the day and never leave children or pets in parked cars.
Practical Tips
Bring water and shade to outdoor events, secure tents and signs before gusty periods, and delay strenuous outdoor work during the hottest part of the afternoon. If thunder roars, go indoors, since lightning can arrive with little warning and is the most consistent storm hazard for people caught outside. Updates will follow if watches or warnings are issued.
