Weather forecast for: Palmer IL
Last Update: 3:36 pm CDT Sep 15, 2026
This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 104. Southwest wind around 8 mph, with gusts as high as 16 mph.
Tonight: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South wind around 5 mph becoming calm after midnight.
Wednesday: Showers and thunderstorms likely before 10am, then a slight chance of showers between 10am and noon. Mostly cloudy, then gradually becoming sunny, with a high near 89. Light and variable wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night: Partly cloudy, with a low around 72. Calm wind becoming south southwest around 5 mph after midnight.
Thursday: Mostly sunny, with a high near 94. Light and variable wind becoming west around 6 mph in the morning.
Thursday Night: Mostly clear, with a low around 70. Light and variable wind.
Friday: Mostly sunny, with a high near 93. East wind around 6 mph becoming south southwest in the afternoon.
Friday Night: Mostly clear, with a low around 70.
Saturday: Mostly sunny, with a high near 94.
Saturday Night: A 40 percent chance of showers after 1am. Partly cloudy, with a low around 69.
Sunday: A chance of showers. Partly sunny, with a high near 89.
Sunday Night: A chance of showers. Mostly cloudy, with a low around 64.
Monday: A chance of showers. Mostly cloudy, with a high near 81.