Weather forecast for: Olney IL
Last Update: 10:11 am CDT Oct 30, 2026
Today: Increasing clouds, with a high near 75. East wind around 9 mph, with gusts as high as 15 mph.
Tonight: Mostly cloudy, with a low around 54. East wind around 7 mph, with gusts as high as 15 mph.
Saturday: Mostly cloudy, with a high near 71. East wind around 7 mph.
Saturday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 56. East southeast wind 3 to 5 mph.
Sunday: A 50 percent chance of showers. Mostly cloudy, with a high near 66. Southeast wind 6 to 10 mph, with gusts as high as 17 mph.
Sunday Night: Mostly cloudy, with a low around 53. Southeast wind 5 to 8 mph.
Monday: A 30 percent chance of showers. Mostly cloudy, with a high near 69. South southeast wind 6 to 11 mph, with gusts as high as 20 mph.
Monday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 58.
Tuesday: A 40 percent chance of showers. Mostly cloudy, with a high near 74.
Tuesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 55.
Wednesday: A chance of showers. Partly sunny, with a high near 70.
Wednesday Night: Mostly cloudy, with a low around 49.
Thursday: Partly sunny, with a high near 67.