Weather forecast for: Dennison IL
Last Update: 9:46 pm CST Mar 2, 2026
Overnight: Rain likely, mainly after 5am. Cloudy, with a low around 35. East wind around 5 mph becoming calm. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday: Rain, with thunderstorms also possible after 3pm. High near 52. Calm wind becoming southeast around 5 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night: Rain and possibly a thunderstorm. Patchy fog. Low around 45. East northeast wind 3 to 5 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday: Rain and possibly a thunderstorm before 9am, then showers between 9am and 3pm, then showers and possibly a thunderstorm after 3pm. Patchy fog before 7am. High near 62. East wind 5 to 7 mph becoming south in the morning. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night: Showers and possibly a thunderstorm. Low around 54. South wind 5 to 8 mph, with gusts as high as 17 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday: Showers, with thunderstorms also possible after noon. High near 67. South southwest wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 52. West southwest wind around 6 mph becoming south southeast after midnight.
Friday: A 50 percent chance of showers. Mostly cloudy, with a high near 75.
Friday Night: Showers likely after midnight. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Saturday: Showers. High near 69. Chance of precipitation is 80%.
Saturday Night: A chance of showers. Mostly cloudy, with a low around 48.
Sunday: Mostly cloudy, with a high near 63.
Sunday Night: A chance of showers. Mostly cloudy, with a low around 49.
Monday: A chance of showers. Mostly sunny, with a high near 67.
WeatherWorld.com
