Weather forecast for: Castleton IL
Last Update: 12:36 am CDT Sep 5, 2026
Overnight: Mostly clear, with a low around 73. Calm wind.
Saturday: Sunny, with a high near 92. Calm wind becoming north 5 to 9 mph in the morning.
Saturday Night: Mostly clear, with a low around 66. East northeast wind 6 to 10 mph, with gusts as high as 18 mph.
Sunday: Sunny, with a high near 84. East wind 5 to 8 mph.
Sunday Night: Mostly clear, with a low around 62. East wind 5 to 8 mph, with gusts as high as 15 mph.
Labor Day: Sunny, with a high near 84. East southeast wind 5 to 8 mph.
Monday Night: Partly cloudy, with a low around 64. East southeast wind around 8 mph, with gusts as high as 15 mph.
Tuesday: Mostly sunny, with a high near 91.
Tuesday Night: Partly cloudy, with a low around 74.
Wednesday: Mostly sunny, with a high near 92.
Wednesday Night: A chance of showers. Partly cloudy, with a low around 67.
Thursday: Mostly sunny, with a high near 84.
Thursday Night: Partly cloudy, with a low around 62.
Friday: Mostly sunny, with a high near 84.
WeatherWorld.com
