Weather forecast for: Donnellson IL
Last Update: 6:06 pm CDT Sep 17, 2026
Tonight: A 20 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, then gradually becoming clear, with a low around 71. Light and variable wind becoming southwest around 5 mph after midnight.
Friday: A slight chance of showers and thunderstorms between 1pm and 2pm. Partly sunny, then gradually becoming sunny, with a high near 93. Heat index values as high as 101. Northeast wind 3 to 7 mph. Chance of precipitation is 20%.
Friday Night: Increasing clouds, with a low around 70. East wind 6 to 8 mph becoming southeast after midnight.
Saturday: Mostly sunny, with a high near 95. South wind 5 to 7 mph becoming west in the afternoon.
Saturday Night: Partly cloudy, with a low around 70. Light south wind.
Sunday: A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 91. Chance of precipitation is 20%.
Sunday Night: A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66.
Monday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82.
Monday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 59.
Tuesday: Partly sunny, with a high near 75.
Tuesday Night: Partly cloudy, with a low around 55.
Wednesday: Mostly sunny, with a high near 77.
Wednesday Night: Partly cloudy, with a low around 56.
Thursday: Mostly sunny, with a high near 80.
WeatherWorld.com
