Indianapolis, Ind. – A blast of late-September heat grips Indiana today, pushing highs near 90°F before a sharp cooldown signals the arrival of October midweek. Drivers along I-465 and I-70 will face unseasonably hot pavement during the Monday commute, making hydration and caution critical.
According to the National Weather Service in Indianapolis, today will be sunny and calm, but temperatures remain well above seasonal norms. Winds shift northeast by this afternoon, holding steady at 5 mph. By Wednesday, highs will fall into the low 80s with a noticeable drop overnight, setting the stage for cooler fall air.
Central Indiana residents can expect mostly clear skies tonight with lows near 59°F, though Tuesday will bring another hot day in the upper 80s. Relief arrives Wednesday as skies turn mostly sunny and temperatures slip to the low 80s. By Thursday, highs drop further, hovering around 80°F with partly cloudy skies and calmer winds.
This early October cooldown will provide welcome relief for Hoosiers after back-to-back days of intense sun. Outdoor workers should take precautions today and Tuesday, limiting time on asphalt surfaces and drinking plenty of water. Evening events midweek will feel more comfortable as nighttime lows dip into the mid-50s.
Temperatures stay steady into next weekend, trending slightly cooler with highs in the low 80s by Sunday. While no severe weather is expected, the warm start and fall shift highlight a week of quick transitions.
Five Day Forecast for Indianapolis, Ind.
- Monday: Sunny, high near 90°F. Calm winds.
- Tuesday: Sunny, high near 85°F. Northeast winds 3–7 mph.
- Wednesday: Mostly sunny, high near 83°F. Cooler night, low near 54°F.
- Thursday: Partly sunny, high near 80°F. East winds 3–5 mph.
- Friday: Sunny, high near 83°F. Low around 57°F.
