Chatham Weather Forecast

    • 48
    • 75

    Becoming Sunny

    • 51
    • 78

    Mostly Cloudy

    • 50
    • 78

    Partly Sunny

    • 51
    • 75

    Mostly Cloudy

    • 52
    • 79

    Mostly Sunny

    • 50
    • 77

    Partly Sunny

Today 24 Oct Sangamon

Partly sunny. Highs in the mid 70s. Southeast Winds 5 to 10 Mph.

Tonight 24 Oct Sangamon

Mostly clear. Lows in the upper 40s. Southeast Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Chatham Temperature Statistics

October Temperature

Springfield - Abraham Lincoln Capital Airport (11.2 miles)

  • Lowest 17 October, 2026

    37.7 °F

  • Average October

    63 °F

  • Highest 13 October, 2026

    92.6 °F

Climate (2021–2026)

Springfield - Abraham Lincoln Capital Airport (11.2 miles)

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

  • Average Low 2021–2026

    45 °F

  • Average 2021–2026

    55.6 °F

  • Average High 2021–2026

    65.7 °F
Get WillyWeather+ to remove ads