Weather forecast for: Brussels IL
Last Update: 11:31 am CDT Sep 5, 2026
Today: Sunny and hot, with a high near 100. Heat index values as high as 108. Calm wind becoming north 5 to 7 mph in the afternoon.
Tonight: Mostly clear, with a low around 71. Northeast wind 3 to 6 mph.
Sunday: Mostly sunny, with a high near 91. East wind 6 to 9 mph.
Sunday Night: Mostly clear, with a low around 65. East wind 6 to 8 mph.
Labor Day: Sunny, with a high near 89. East wind 5 to 7 mph.
Monday Night: Mostly clear, with a low around 66.
Tuesday: Sunny, with a high near 96.
Tuesday Night: Mostly clear, with a low around 74.
Wednesday: Sunny and hot, with a high near 99.
Wednesday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 70.
Thursday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Thursday Night: A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 66.
Friday: A 20 percent chance of showers. Mostly sunny, with a high near 89.