Weather forecast for: Saint Elmo IL
Last Update: 8:51 am CDT Sep 16, 2026
Today: A slight chance of showers and thunderstorms before 11am, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 92. Heat index values as high as 100. Southeast wind around 6 mph becoming west in the afternoon. Chance of precipitation is 20%.
Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 74. Light and variable wind.
Thursday: Sunny, with a high near 95. Heat index values as high as 102. Light and variable wind becoming west around 6 mph in the morning.
Thursday Night: Partly cloudy, with a low around 70. Light and variable wind.
Friday: Sunny, with a high near 91. East wind 3 to 5 mph.
Friday Night: Mostly clear, with a low around 70.
Saturday: Mostly sunny, with a high near 95.
Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.
Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Sunday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 67.
Monday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Monday Night: A 30 percent chance of showers. Partly cloudy, with a low around 62.
Tuesday: A 20 percent chance of showers. Mostly sunny, with a high near 82.
WeatherWorld.com
