Weather forecast for: Simpson IL
Last Update: 6:21 pm CDT Sep 3, 2026
Tonight: Clear, with a low around 73. Calm wind.
Friday: Sunny and hot, with a high near 98. Heat index values as high as 105. Light and variable wind.
Friday Night: Mostly clear, with a low around 75. Calm wind.
Saturday: Sunny and hot, with a high near 99. Heat index values as high as 105. Light and variable wind.
Saturday Night: Mostly clear, with a low around 70. Calm wind.
Sunday: Sunny, with a high near 94. Calm wind becoming northeast 5 to 8 mph in the morning.
Sunday Night: Mostly clear, with a low around 67. Northeast wind 5 to 7 mph becoming calm after midnight.
Labor Day: Sunny, with a high near 92. East northeast wind 3 to 6 mph.
Monday Night: Mostly clear, with a low around 68. Calm wind.
Tuesday: A slight chance of showers after 1pm. Sunny, with a high near 94. Calm wind becoming south around 6 mph in the morning.
Tuesday Night: Mostly clear, with a low around 73. Calm wind becoming south around 5 mph after midnight.
Wednesday: Sunny, with a high near 95. South southwest wind 5 to 9 mph.
Wednesday Night: Mostly clear, with a low around 73. South wind around 6 mph.
Thursday: A slight chance of showers. Sunny, with a high near 93. Southwest wind 6 to 8 mph.
WeatherWorld.com
