Mount Sterling Weather Forecast
Weather forecast for: Mount Sterling IL
Last Update: 4:31 am CDT Sep 4, 2026
Today: Sunny and hot, with a high near 97. Heat index values as high as 105. Southwest wind 5 to 7 mph.
Tonight: Mostly clear, with a low around 74. Calm wind.
Saturday: Sunny, with a high near 95. Heat index values as high as 103. Calm wind becoming north around 6 mph in the afternoon.
Saturday Night: Mostly clear, with a low around 70. East wind 3 to 5 mph.
Sunday: Sunny, with a high near 88. East wind 3 to 8 mph.
Sunday Night: Partly cloudy, with a low around 66.
Labor Day: Sunny, with a high near 88.
Monday Night: Mostly clear, with a low around 68.
Tuesday: Sunny, with a high near 94.
Tuesday Night: Mostly clear, with a low around 75.
Wednesday: Sunny, with a high near 95.
Wednesday Night: A 30 percent chance of showers. Partly cloudy, with a low around 73.
Thursday: A 20 percent chance of showers. Mostly sunny, with a high near 89.