Weather forecast for: Oak Forest IL
Last Update: 9:25 pm CDT Sep 12, 2026
Tonight: Partly cloudy, with a low around 66. North wind 5 to 10 mph.
Sunday: A chance of showers between 1pm and 4pm. Partly sunny, with a high near 77. North wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.
Sunday Night: Mostly cloudy, then gradually becoming clear, with a low around 53. North wind around 5 mph, with gusts as high as 10 mph.
Monday: Increasing clouds, with a high near 75. Light east wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Monday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66. Southeast wind around 15 mph, with gusts as high as 25 mph.
Tuesday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. Chance of precipitation is 50%.
Tuesday Night: Showers and possibly a thunderstorm. Low around 68. Chance of precipitation is 80%.
Wednesday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 79.
Wednesday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 68.
Thursday: Showers likely before 1pm. Mostly cloudy, with a high near 79.
Thursday Night: A chance of showers. Mostly cloudy, with a low around 64.
Friday: A chance of showers. Partly sunny, with a high near 76.
Friday Night: A chance of showers. Mostly cloudy, with a low around 61.
Saturday: A chance of showers. Partly sunny, with a high near 75.