Weather forecast for: Lostant IL
Last Update: 6:55 am CDT Sep 5, 2026
Today: Sunny, with a high near 90. Heat index values as high as 98. Light and variable wind becoming north northeast 5 to 10 mph in the morning. Winds could gust as high as 15 mph.
Tonight: Partly cloudy, with a low around 66. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday: Mostly sunny, with a high near 82. East northeast wind 5 to 10 mph.
Sunday Night: Partly cloudy, with a low around 61. East wind around 5 mph.
Labor Day: Sunny, with a high near 82. East southeast wind around 5 mph, with gusts as high as 15 mph.
Monday Night: Partly cloudy, with a low around 63.
Tuesday: Mostly sunny, with a high near 90.
Tuesday Night: Partly cloudy, with a low around 74.
Wednesday: Mostly sunny, with a high near 90.
Wednesday Night: A chance of showers after 1am. Partly cloudy, with a low around 65.
Thursday: Mostly sunny, with a high near 82.
Thursday Night: Partly cloudy, with a low around 62.
Friday: Sunny, with a high near 85.
WeatherWorld.com
