Weather forecast for: Hamilton IL
Last Update: 2:45 pm CDT Sep 3, 2026
Tonight: Clear, with a low around 76. South wind around 5 mph.
Friday: Sunny and hot, with a high near 96. Heat index values as high as 105. Southwest wind around 5 mph.
Friday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. South wind around 5 mph becoming calm.
Saturday: Sunny and hot, with a high near 95. Heat index values as high as 106. Calm wind becoming north around 5 mph in the afternoon.
Saturday Night: Mostly clear, with a low around 71.
Sunday: Sunny, with a high near 89.
Sunday Night: Mostly clear, with a low around 67.
Labor Day: Mostly sunny, with a high near 89.
Monday Night: Mostly clear, with a low around 69.
Tuesday: Mostly sunny and hot, with a high near 96.
Tuesday Night: Mostly clear, with a low around 75.
Wednesday: Mostly sunny and hot, with a high near 96.
Wednesday Night: A 30 percent chance of showers. Partly cloudy, with a low around 72.
Thursday: Mostly sunny, with a high near 89.
WeatherWorld.com
City of Hamilton, IL
