Old School Forest Preserve Weather Forecast
- 66
- 83
Rain Showers
- 63
- 73
Rain Showers
- 59
- 74
Partly Sunny
- 62
- 77
Mostly Sunny
- 66
- 81
Partly Sunny
- 65
- 81
Chance Rain Showers
Today 31 Jul Lake
Mostly cloudy. A chance of Showers early in the afternoon. Showers likely and a slight chance of Thunderstorms late. Highs in the lower 80s. Temperature falling into the mid 70s in the afternoon. South Winds 5 to 10 Mph, increasing to southeast 10 to 15 Mph in the afternoon. Chance of precipitation 70 percent.
Tonight 31 Jul Lake
A chance of Thunderstorms until early morning. Showers. A slight chance of Thunderstorms late. Lows in the mid 60s. Southeast Winds 10 to 15 Mph, increasing to east 15 to 20 Mph with Gusts up to 25 Mph after midnight. Chance of precipitation near 100 percent.
Old School Forest Preserve Temperature Statistics
July Temperature
Chicago / Wheeling, Pal-Waukee Airport (9.9 miles)
Lowest 23 July, 2026
54.6 °FAverage July
76.2 °FHighest 14 July, 2026
97.6 °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