Indianapolis wakes up on the chilly side this morning, with most neighborhoods sitting in the mid-40s and a light north-northwest breeze. The payoff is a bright, mostly sunny Thursday, May 14, with highs around 67°F before a wind shift starts dragging in warmer, more humid air to close out the week. Rain makes a comeback Friday, May 15, and a warm, unsettled pattern builds into the weekend that could bring soaking downpours and the first 90° readings of the season early next week.
Thursday Into Friday
Today stays mostly sunny, with north-northwest winds near 5 to 9 mph and a cool overnight low close to 44°F. By Friday, May 15, winds swing around from the south and open the door to warmer, moisture-laden air. That change brings a chance for showers and a few isolated thunderstorms, especially from about 8 a.m. to noon, when gusts in stronger cells could approach 20 mph. According to the National Weather Service Indianapolis, rain chances then climb as the weekend gets underway.
Weekend Heat and Storm Risk
Saturday, May 16 looks like the main event for showers and thunderstorms, with highs near 83°F and a 70% chance of rain. A few storms could unload heavy downpours and kick up gusty winds, and new rainfall totals between one half and three quarters of an inch are on the table. Sunday, May 17 trends hotter, with highs near 85°F and only a slight chance of storms. By Monday, May 18, temperatures could surge into the upper 80s to around 90°F, potentially marking the first 90° day of the year.
This setup favors quick-hitting, intense storms rather than long, soaking rains, so impacts may be hit-or-miss. Outdoor plans could go from fine to washed out in a hurry if you happen to be under one of the stronger cells.
Plan Ahead
If you have outdoor plans this weekend, keep a backup option handy and pay attention to timing. Showers and storms are most likely in the afternoon and evening, and brief heavy bursts of rain can leave roads and sidewalks slick. A light rain shell will come in handy Friday morning, and it is worth securing loose patio furniture or yard decor before gustier storms move in on Saturday.
Looking ahead to next week, when the heat really starts to spike, cooling centers and family centers will be available across the city. For locations and hours, check Indy Parks cooling centers.
Where to Watch
Watches or warnings will be worth a second look as the pattern turns more active, and updates will follow if conditions escalate. Keep an eye on the National Weather Service and local media before heading out, especially for outdoor work or events. Signing up for local weather alerts is a smart move, and it may be worth delaying yard work or other sensitive outdoor plans if storms are in the forecast.
