Weather forecast for: Keyesport IL
Last Update: 4:16 am CDT Sep 5, 2026
Today: Isolated showers between 3pm and 4pm, then isolated showers and thunderstorms after 4pm. Sunny and hot, with a high near 99. Heat index values as high as 109. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Tonight: Isolated showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Northeast wind 3 to 6 mph. Chance of precipitation is 20%.
Sunday: Sunny, with a high near 89. Northeast wind 6 to 9 mph.
Sunday Night: Mostly clear, with a low around 63. Northeast wind 5 to 9 mph.
Labor Day: Sunny, with a high near 88. East wind 3 to 5 mph.
Monday Night: Mostly clear, with a low around 66.
Tuesday: Sunny, with a high near 95.
Tuesday Night: Mostly clear, with a low around 74.
Wednesday: Sunny and hot, with a high near 100.
Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 71.
Thursday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Thursday Night: Mostly clear, with a low around 65.
Friday: A 20 percent chance of showers. Sunny, with a high near 90.