It is a clear, crisp start at about 48°F this morning at Indianapolis International Airport, but the quiet will not last. A wetter, stormier finish is on deck, with showers and thunderstorms likely from late Friday afternoon into tonight. The main window runs roughly between 4 p.m. and midnight, when gusty southwest winds and pockets of heavier rain could slow the evening commute. Temperatures will climb into the upper 60s before storms arrive, then slide into the low 50s overnight.
Showers And Heavier Rain Possible This Evening
According to the National Weather Service, showers and thunderstorms are most likely this afternoon into tonight, with localized rainfall totals of about a half to three-quarters of an inch possible near I-70 and south to US-50. Forecasters say the greatest coverage should arrive after about 4 to 5 p.m., then taper off overnight into Saturday morning.
The National Weather Service also highlights the chance for isolated, non-severe thunder and brief heavy downpours. That could mean reduced visibility and short-term flooding in low-lying spots, especially during the busiest drive times. If you have outdoor plans this evening, keep one eye on the radar and another on the sky.
Afternoon Winds Pick Up
Southwest winds will crank up through the afternoon, with sustained speeds around 5 to 15 mph and gusts into the mid-20s mph this evening. That is enough to toss around unsecured patio furniture or a loose trash can or two.
Saturday still looks mostly sunny and warmer, with a high near 75°F and continued west-southwest gusts up to about 23 mph. By Sunday, a cooler north wind settles in, and only a slight chance of showers lingers. If you have canopies, lawn chairs, or other outdoor gear, it is worth securing everything before the gustiest hours hit.
Local Impacts And Planning
This story updates our earlier May 6 forecast, which projected lighter totals, so event planners and outdoor hosts should note the change; see our earlier lighter-rain forecast. Fans heading to outdoor events Friday evening, including activities at the Indianapolis Motor Speedway, should have a dry backup plan and build in extra travel time.
For most drivers, the main issues will be brief heavy downpours and occasional gusts. Slow down on wet roads, watch for standing water, and keep headlights on in heavier rain. If conditions change, rely on local official channels and your preferred radar app for the latest, minute-by-minute updates.
