Weather forecast for: Lyndon IL
Last Update: 10:21 pm CDT Sep 10, 2026
Tonight: Mostly clear, with a low around 58. East wind around 5 mph.
Friday: Sunny, with a high near 81. South wind around 5 mph.
Friday Night: Increasing clouds, with a low around 63. Southeast wind around 5 mph.
Saturday: Partly sunny, with a high near 84. South wind 5 to 10 mph becoming west in the afternoon.
Saturday Night: Partly cloudy, with a low around 57.
Sunday: A 40 percent chance of showers after 1pm. Partly sunny, with a high near 78.
Sunday Night: A 40 percent chance of showers after 1am. Partly cloudy, with a low around 58.
Monday: A 40 percent chance of showers before 1pm. Partly sunny, with a high near 83.
Monday Night: A chance of showers and thunderstorms, then showers likely after 1am. Partly cloudy, with a low around 66. Chance of precipitation is 60%.
Tuesday: A 50 percent chance of showers. Partly sunny, with a high near 80.
Tuesday Night: Showers likely. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Wednesday: A 50 percent chance of showers. Mostly cloudy, with a high near 73.
Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 59.
Thursday: A 40 percent chance of showers. Partly sunny, with a high near 76.