East Chatham Weather Forecast

    • 66
    • 81

    Mostly Sunny

    • 65
    • 79

    Partly Sunny

    • 66
    • 78

    Chance Rain Showers

    • 65
    • 78

    Chance Thunderstorms

    • 64
    • 77

    Chance Rain Showers

    • 62
    • 76

    Chance Rain Showers

Today 18 Sep Central Cook

Mostly sunny. Highs in the mid 80s Inland, but only around 80 near the lake. Temperature falling into the upper 70s in the afternoon. Southeast Winds around 5 Mph, becoming east in the afternoon.

Tonight 18 Sep Central Cook

Mostly clear. Lows in the mid 60s. Northeast Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

East Chatham Temperature Statistics

September Temperature

Chicago, Chicago Midway Airport (8.1 miles)

  • Lowest 7 September, 2025

    48.9 °F

  • Average September

    68.1 °F

  • Highest 12 September, 2025

    84.9 °F

Climate (2020–Present)

Chicago, Chicago Midway Airport (8.1 miles)

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

  • Average Low 2020–2025

    46.6 °F

  • Average 2020–2025

    54.2 °F

  • Average High 2020–2025

    61.8 °F
Get WillyWeather+ to remove ads