Weather forecast for: Marengo IL
Last Update: 9:06 pm CDT Sep 7, 2026
Tonight: Partly cloudy, with a low around 60. East wind around 5 mph becoming calm in the evening.
Tuesday: Partly sunny, with a high near 83. South wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night: A chance of showers and thunderstorms between 10pm and 4am, then showers likely and possibly a thunderstorm after 4am. Increasing clouds, with a low around 69. South wind 5 to 10 mph becoming west southwest after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms, mainly between 1pm and 4pm. Mostly cloudy, with a high near 81. West southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Wednesday Night: A 10 percent chance of showers before 7pm. Partly cloudy, with a low around 57. West northwest wind 5 to 10 mph.
Thursday: Sunny, with a high near 74.
Thursday Night: Mostly clear, with a low around 54.
Friday: Sunny, with a high near 81.
Friday Night: A chance of showers after 1am. Partly cloudy, with a low around 61.
Saturday: A chance of showers before 1pm. Mostly sunny, with a high near 83.
Saturday Night: Partly cloudy, with a low around 60.
Sunday: Mostly sunny, with a high near 80.
Sunday Night: A chance of showers. Mostly cloudy, with a low around 60.
Monday: A chance of showers. Partly sunny, with a high near 79.
WeatherWorld.com
City of Marengo, IL
