Summit Weather Forecast

    • 59
    • 73

    Chance Rain Showers

    • 61
    • 79

    Mostly Cloudy

    • 60
    • 73

    Partly Sunny

    • 64
    • 82

    Chance Rain Showers

    • 55
    • 71

    Partly Sunny

    • 54
    • 66

    Rain Showers Likely

    • 53
    • 67

    Chance Rain Showers

Today 9 Oct Central Cook

Mostly cloudy. A chance of Showers in the morning. Highs in the lower 60s. Chance of precipitation 50 percent.

Tonight 9 Oct Central Cook

Partly cloudy in the Evening, then becoming clear. Lows around 60. Southeast Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Summit Temperature Statistics

October Temperature

Chicago, Chicago Midway Airport (2.5 miles)

  • Lowest 3 October, 2026

    48.9 °F

  • Average October

    62.5 °F

  • Highest 7 October, 2026

    79 °F

Climate (2021–2026)

Chicago, Chicago Midway Airport (2.5 miles)

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

  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    54.2 °F

  • Average High 2021–2026

    61.8 °F
Get WillyWeather+ to remove ads