Weather forecast for: Sullivan IL
Last Update: 11:31 pm CST Nov 7, 2026
Overnight: Mostly clear, with a low around 31. Calm wind becoming southwest around 5 mph.
Sunday: Sunny, with a high near 61. West southwest wind 6 to 11 mph, with gusts as high as 17 mph.
Sunday Night: Mostly clear, with a low around 33. West wind around 6 mph becoming calm in the evening.
Monday: Sunny, with a high near 63. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Monday Night: Clear, with a low around 40. South southwest wind around 6 mph.
Tuesday: Sunny, with a high near 67. West wind 3 to 6 mph.
Tuesday Night: Mostly clear, with a low around 39. Calm wind.
Veterans Day: A 30 percent chance of rain after noon. Partly sunny, with a high near 63.
Wednesday Night: A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 39.
Thursday: Mostly sunny, with a high near 53.
Thursday Night: Partly cloudy, with a low around 30.
Friday: Mostly sunny, with a high near 49.
Friday Night: Mostly clear, with a low around 29.
Saturday: Sunny, with a high near 55.
WeatherWorld.com
City of Sullivan, Illinois
