Weather forecast for: Neponset IL
Last Update: 9:46 pm CDT Sep 18, 2026
Tonight: A 40 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 66. Southeast wind around 10 mph, with gusts as high as 20 mph.
Saturday: Showers and thunderstorms likely before 1pm, then a slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 82. Southeast wind around 10 mph becoming south in the afternoon. Chance of precipitation is 60%.
Saturday Night: Showers and thunderstorms likely before midnight, then showers and possibly a thunderstorm between midnight and 4am, then showers after 4am. Low around 65. Northeast wind around 5 mph becoming northwest in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday: Showers and possibly a thunderstorm before 10am, then showers between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. High near 72. Northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night: Showers likely. Mostly cloudy, with a low around 58. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Monday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.
Monday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 53.
Tuesday: Mostly cloudy, with a high near 64.
Tuesday Night: Partly cloudy, with a low around 50.
Wednesday: Partly sunny, with a high near 67.
Wednesday Night: Partly cloudy, with a low around 52.
Thursday: Mostly sunny, with a high near 69.
Thursday Night: Partly cloudy, with a low around 54.
Friday: Mostly sunny, with a high near 71.