Old School Forest Preserve Weather Forecast
- 69
- 84
Thunderstorms Likely
- 67
- 81
Rain Showers Likely
- 67
- 82
Rain Showers Likely
- 65
- 81
Chance Thunderstorms
- 61
- 76
Mostly Cloudy
- 61
- 74
Chance Rain Showers
Today 9 Aug Lake
Thunderstorms early in the afternoon. Showers. Thunderstorms likely in the afternoon. Some Thunderstorms may be severe with damaging Winds and large hail early in the afternoon. Some Thunderstorms may produce damaging Winds and large hail early in the afternoon. Highs around 80. Southwest Winds around 10 Mph. Chance of precipitation 80 percent.
Tonight 9 Aug Lake
Mostly cloudy. Showers and Thunderstorms likely in the Evening, then a chance of Showers and Thunderstorms after midnight. A slight chance of Showers and Thunderstorms late. Humid with Lows in the upper 60s. South Winds 5 to 10 Mph, becoming southwest after midnight. Chance of precipitation 70 percent.
Old School Forest Preserve Temperature Statistics
August Temperature
Chicago / Wheeling, Pal-Waukee Airport (9.9 miles)
Lowest 3 August, 2026
61.6 °FAverage August
73.1 °FHighest 7 August, 2026
86 °F
Climate (2021–2026)
Chicago / Wheeling, Pal-Waukee Airport (9.9 miles)
Average Low 2021–2026
44 °FAverage 2021–2026
52.9 °FAverage High 2021–2026
61.6 °F