Chatham Weather Forecast

    • 29
    • 49

    Mostly Cloudy

    • 33
    • 54

    Partly Sunny

    • 38
    • 53

    Chance Rain

    • 33
    • 56

    Mostly Sunny

    • 42
    • 58

    Mostly Cloudy

    • 50
    • 61

    Mostly Cloudy

Today 12 Feb Sangamon

Mostly cloudy. Highs in the upper 40s. South Winds around 5 Mph.

Tonight 12 Feb Sangamon

Partly cloudy. Lows in the upper 20s. Southeast Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Chatham Temperature Statistics

February Temperature

Springfield - Abraham Lincoln Capital Airport (11.2 miles)

  • Lowest 1 February, 2026

    -2.3 °F

  • Average February

    24.9 °F

  • Highest 9 February, 2026

    48 °F

Climate (2021–Present)

Springfield - Abraham Lincoln Capital Airport (11.2 miles)

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

  • Average Low 2021–2026

    44.8 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    65.1 °F
Get WillyWeather+ to remove ads