Clinton Lake State Recreation Area Weather Forecast
- 61
- 91
Mostly Sunny
- 63
- 88
Chance Thunderstorms
- 63
- 84
Chance Thunderstorms
- 63
- 81
Rain Showers Likely
- 63
- 80
Chance Thunderstorms
- 61
- 78
Chance Rain Showers
- 59
- 76
Chance Rain Showers
Today 18 Sep De Witt
Sunny. Near steady temperature in the upper 80s. Southeast Winds around 5 Mph.
Tonight 18 Sep De Witt
Mostly clear late this Evening, then becoming partly cloudy. Lows in the lower 60s. Southeast Winds around 5 Mph.
Clinton Lake State Recreation Area Temperature Statistics
September Temperature
Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (21.7 miles)
Lowest 7 September, 2025
45 °FAverage September
67 °FHighest 13 September, 2025
93.9 °F
Climate (2020–Present)
Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (21.7 miles)
Average Low 2020–2025
43.5 °FAverage 2020–2025
52.8 °FAverage High 2020–2025
62.1 °F