| NWS Forecast for: Plainfield IN Issued by: National Weather Service Indianapolis, IN Last Update: 8:45 am EDT May 18, 2026 |  |
Today: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 29. South southwest wind 18 to 23 km/h increasing to 24 to 29 km/h in the afternoon. Winds could gust as high as 45 km/h. Chance of precipitation is 80%. New rainfall amounts between 2.5 and 5 mm possible. Tonight: Showers and thunderstorms likely before 11pm, then isolated showers between 11pm and 1am. Mostly cloudy, with a low around 20. South wind 14 to 21 km/h, with gusts as high as 39 km/h. Chance of precipitation is 60%. New precipitation amounts between 2.5 and 5 mm possible. Tuesday: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Increasing clouds, with a high near 29. Southwest wind 23 to 29 km/h, with gusts as high as 50 km/h. Chance of precipitation is 70%. New rainfall amounts between 2.5 and 5 mm possible. Tuesday Night: Showers likely and possibly a thunderstorm before 2am, then scattered showers. Mostly cloudy, with a low around 16. West southwest wind 14 to 23 km/h becoming northwest after midnight. Winds could gust as high as 32 km/h. Chance of precipitation is 70%. New rainfall amounts between 7.5 mm and 1 cm possible. Wednesday: Scattered showers before 8am. Mostly cloudy, with a high near 21. North wind 14 to 18 km/h, with gusts as high as 29 km/h. Chance of precipitation is 30%. Wednesday Night: Mostly cloudy, with a low around 10. North northeast wind 11 to 16 km/h, with gusts as high as 29 km/h. Thursday: Mostly sunny, with a high near 21. East wind 14 to 16 km/h, with gusts as high as 29 km/h. Thursday Night: Partly cloudy, with a low around 12. East wind 11 to 14 km/h. Friday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 23. East wind 11 to 13 km/h. Chance of precipitation is 60%. Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 16. East southeast wind 8 to 11 km/h. Chance of precipitation is 60%. Saturday: Showers and thunderstorms likely. Mostly cloudy, with a high near 26. Chance of precipitation is 60%. Saturday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 17. Sunday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 28. | |
| Plainfield IN 39.71°N 86.39°W (Elev. 781 m) | |
Visit your local NWS office at: https://www.weather.gov/ind |
