Weather forecast for: Allendale IL
Last Update: 4:16 pm CDT Sep 9, 2026
This Afternoon: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a steady temperature around 92. Southwest wind around 9 mph.
Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 72. South southwest wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 80%.
Thursday: Showers and possibly a thunderstorm, mainly before 3pm, then a chance of showers and thunderstorms after 3pm. High near 81. Calm wind becoming north northeast 5 to 7 mph in the morning. Chance of precipitation is 90%.
Thursday Night: A chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 9pm. Mostly cloudy, with a low around 67. Light northeast wind. Chance of precipitation is 30%.
Friday: A 40 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 83. Northeast wind around 5 mph becoming light and variable in the afternoon.
Friday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 67. Calm wind.
Saturday: A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 89. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night: Partly cloudy, with a low around 68. Calm wind.
Sunday: Mostly sunny, with a high near 90. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night: Mostly clear, with a low around 68. Southeast wind 3 to 5 mph.
Monday: Sunny, with a high near 93. South wind 5 to 10 mph.
Monday Night: Mostly clear, with a low around 71. South southeast wind around 7 mph.
Tuesday: A chance of showers and thunderstorms. Sunny, with a high near 93. Southwest wind 6 to 9 mph.