Weather forecast for: Gilson IL
Last Update: 1:26 am CDT Sep 5, 2026
Overnight: Mostly clear, with a low around 73. Calm wind.
Saturday: Sunny, with a high near 92. Heat index values as high as 106. Calm wind becoming north 5 to 7 mph in the afternoon.
Saturday Night: Partly cloudy, with a low around 66. Northeast wind 5 to 8 mph, with gusts as high as 17 mph.
Sunday: Mostly sunny, with a high near 84. East wind 5 to 8 mph.
Sunday Night: Partly cloudy, with a low around 61. East wind 3 to 7 mph. Winds could gust as high as 15 mph.
Labor Day: Sunny, with a high near 84. Southeast wind 3 to 7 mph.
Monday Night: Partly cloudy, with a low around 63. Southeast wind around 7 mph, with gusts as high as 17 mph.
Tuesday: Mostly sunny, with a high near 91.
Tuesday Night: Mostly clear, with a low around 73.
Wednesday: Mostly sunny, with a high near 90.
Wednesday Night: A chance of showers. Partly cloudy, with a low around 64.
Thursday: Mostly sunny, with a high near 84.
Thursday Night: Partly cloudy, with a low around 62.
Friday: Mostly sunny, with a high near 86.