Weather forecast for: De Kalb MO
Last Update: 11:38 am CDT Sep 7, 2026
Labor Day: Mostly sunny, with a high near 92. Heat index values as high as 99. South southeast wind around 11 mph.
Tonight: Partly cloudy, with a low around 74. Southeast wind 9 to 13 mph, with gusts as high as 21 mph.
Tuesday: Mostly sunny and hot, with a high near 98. Heat index values as high as 104. South southwest wind 10 to 14 mph, with gusts as high as 22 mph.
Tuesday Night: A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75. South wind 8 to 10 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday: Showers and possibly a thunderstorm. High near 87. North northwest wind around 6 mph becoming south southeast in the morning. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 65. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday: Sunny, with a high near 83.
Thursday Night: Mostly clear, with a low around 63.
Friday: Mostly sunny, with a high near 88.
Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 50%.
Saturday: Mostly sunny, with a high near 87.
Saturday Night: A chance of showers and thunderstorms. Mostly clear, with a low around 66. Chance of precipitation is 30%.
Sunday: A chance of showers. Mostly sunny, with a high near 84. Chance of precipitation is 40%.