Old School Forest Preserve Weather Forecast

    • 54
    • 65

    Mostly Cloudy

    • 58
    • 73

    Chance Rain Showers

    • 61
    • 82

    Mostly Sunny

    • 64
    • 84

    Partly Sunny

    • 60
    • 76

    Partly Sunny

    • 56
    • 73

    Partly Sunny

Today 23 May Lake

Mostly cloudy. Highs in the upper 60s Inland, but only in the lower 60s near the lake. Northeast Winds 5 to 10 Mph.

Tonight 23 May Lake

Mostly cloudy. A slight chance of Showers late in the evening. A chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the lower 50s. East Winds 5 to 10 Mph. Chance of precipitation 40 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Old School Forest Preserve Temperature Statistics

May Temperature

Chicago / Wheeling, Pal-Waukee Airport (9.9 miles)

  • Lowest 2 May, 2026

    30.7 °F

  • Average May

    56 °F

  • Highest 17 May, 2026

    85.6 °F

Climate (2021–Present)

Chicago / Wheeling, Pal-Waukee Airport (9.9 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    61.6 °F
Get WillyWeather+ to remove ads