Weather forecast for: Chapin IL
Last Update: 10:01 pm CST Mar 3, 2026
Tonight: Rain and possibly a thunderstorm, mainly before 3am, then a chance of rain and thunderstorms after 3am. Patchy fog. Low around 42. Northeast wind around 8 mph, with gusts as high as 17 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday: Rain and thunderstorms likely before noon, then rain likely and possibly a thunderstorm between noon and 4pm, then a chance of rain and thunderstorms after 4pm. Patchy fog before noon. Otherwise, cloudy, with a high near 55. East northeast wind 3 to 7 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night: Rain and possibly a thunderstorm, mainly before 5am, then a chance of rain and thunderstorms after 5am. Patchy fog. Low around 49. Light and variable wind becoming northwest around 6 mph after midnight. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday: A chance of rain before 9am, then a chance of showers between 9am and noon. Cloudy, then gradually becoming mostly sunny, with a high near 64. West wind 5 to 8 mph becoming light and variable in the afternoon. Chance of precipitation is 50%.
Thursday Night: Showers likely and possibly a thunderstorm, mainly after 3am. Increasing clouds, with a low around 51. Light south wind becoming south southeast 5 to 10 mph in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 77. South wind 11 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night: Showers and possibly a thunderstorm. Low around 53. South wind 11 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday: A 30 percent chance of showers before noon. Partly sunny, with a high near 62.
Saturday Night: Mostly clear, with a low around 39.
Sunday: Sunny, with a high near 66.
Sunday Night: Mostly clear, with a low around 44.
Monday: Sunny, with a high near 72.
Monday Night: A chance of showers. Mostly clear, with a low around 54.
Tuesday: Showers likely. Partly sunny, with a high near 72.
WeatherWorld.com
