Weather forecast for: Marseilles IL
Last Update: 1:21 pm CDT Sep 15, 2026
This Afternoon: Scattered showers and thunderstorms, mainly before 4pm. Mostly sunny, with a high near 87. West wind 5 to 10 mph. Chance of precipitation is 40%.
Tonight: Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then scattered showers and thunderstorms after 4am. Mostly cloudy, with a low around 65. North northwest wind around 5 mph becoming northeast after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 4pm. Mostly cloudy, with a high near 77. East northeast wind around 5 mph, with gusts as high as 15 mph.
Wednesday Night: A 50 percent chance of showers and thunderstorms, mainly after 10pm. Mostly cloudy, with a low around 67. East northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.
Thursday: A 50 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 79. Calm wind becoming northwest around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Thursday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66.
Friday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
Friday Night: A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.
Saturday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85.
Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67.
Sunday: A chance of showers. Mostly cloudy, with a high near 79.
Sunday Night: A chance of showers. Mostly cloudy, with a low around 62.
Monday: A chance of showers. Mostly cloudy, with a high near 75.