Weather forecast for: Centralia IL
Last Update: 5:51 pm CDT Sep 12, 2026
Tonight: Mostly clear, with a low around 68. Calm wind.
Sunday: Mostly sunny, with a high near 90. Calm wind becoming northwest around 6 mph in the afternoon.
Sunday Night: A slight chance of showers and thunderstorms before 10pm, then isolated showers and thunderstorms after 3am. Partly cloudy, with a low around 63. Northeast wind 3 to 6 mph. Chance of precipitation is 20%.
Monday: Mostly cloudy, then gradually becoming sunny, with a high near 87. East wind 7 to 9 mph.
Monday Night: Mostly clear, with a low around 68. Southeast wind around 7 mph.
Tuesday: Sunny and hot, with a high near 97.
Tuesday Night: Mostly clear, with a low around 72.
Wednesday: Mostly sunny, with a high near 96.
Wednesday Night: Mostly clear, with a low around 73.
Thursday: A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 93. Chance of precipitation is 20%.
Thursday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Friday: A 20 percent chance of showers. Mostly sunny, with a high near 89.
Friday Night: Mostly clear, with a low around 63.
Saturday: A 20 percent chance of showers. Mostly sunny, with a high near 85.