Weather forecast for: Allerton IL
Last Update: 1:21 am CDT Sep 16, 2026
Overnight: A chance of showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Cloudy, with a low around 71. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday: Showers and thunderstorms likely, mainly before 10am. Partly sunny, with a high near 90. Light and variable wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night: A 20 percent chance of showers and thunderstorms, mainly between 4am and 5am. Partly cloudy, with a low around 71. Light and variable wind.
Thursday: Partly sunny, with a high near 90. Light and variable wind becoming west northwest around 6 mph in the morning.
Thursday Night: A 30 percent chance of showers after 1am. Partly cloudy, with a low around 67. Northeast wind 3 to 6 mph.
Friday: Mostly sunny, with a high near 86. East wind around 6 mph.
Friday Night: Partly cloudy, with a low around 67. East wind around 8 mph becoming south southeast after midnight.
Saturday: Mostly sunny, with a high near 92.
Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Sunday: A 50 percent chance of showers before 1pm. Partly sunny, with a high near 85.
Sunday Night: A chance of showers. Mostly cloudy, with a low around 65.
Monday: A chance of showers. Partly sunny, with a high near 82.
Monday Night: Partly cloudy, with a low around 61.
Tuesday: Mostly sunny, with a high near 79.
WeatherWorld.com
