Weather forecast for: Shannon IL
Last Update: 4:56 am CDT Sep 17, 2026
Today: Showers and thunderstorms, mainly before 9am. Patchy fog before 10am. High near 74. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 80%.
Tonight: Mostly cloudy, with a low around 60. Northeast wind 5 to 10 mph.
Friday: A 50 percent chance of showers, mainly between 9am and 2pm. Mostly cloudy, with a high near 74. East wind 5 to 10 mph.
Friday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 64. East wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday: Showers, with thunderstorms also possible after 4pm. High near 81. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday: A 40 percent chance of showers. Mostly cloudy, with a high near 68.
Sunday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 55.
Monday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
Monday Night: Mostly cloudy, with a low around 51.
Tuesday: Mostly cloudy, with a high near 66.
Tuesday Night: Mostly cloudy, with a low around 52.
Wednesday: Mostly sunny, with a high near 71.
WeatherWorld.com
