Weather forecast for: Downers Grove IL
Last Update: 1:21 pm CDT Oct 12, 2026
Columbus Day: Mostly sunny, with a high near 86. South southwest wind around 15 mph, with gusts as high as 25 mph.
Tonight: Partly cloudy, with a low around 72. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday: Sunny, with a high near 83. West wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night: A chance of showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 4am, then a chance of showers after 4am. Increasing clouds, with a low around 63. Calm wind becoming northeast around 5 mph. Chance of precipitation is 70%.
Wednesday: A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 70. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night: Mostly cloudy, with a low around 55.
Thursday: Showers likely, then showers and possibly a thunderstorm after 10am. High near 65. Chance of precipitation is 80%.
Thursday Night: A chance of showers before 1am. Cloudy, with a low around 49.
Friday: Partly sunny, with a high near 59. Breezy.
Friday Night: Partly cloudy, with a low around 39.
Saturday: Sunny, with a high near 58.
Saturday Night: Mostly clear, with a low around 40.
Sunday: Sunny, with a high near 63.