Chatham Weather Forecast

    • 55
    • 69

    Chance Rain Showers

    • 52
    • 66

    Chance Rain Showers

    • 59
    • 70

    Rain Showers

    • 52
    • 73

    Rain Showers

    • 45
    • 67

    Slight Chance Rain Showers

    • 44
    • 67

    Slight Chance Rain Showers

Today 31 Oct Sangamon

Cloudy. A slight chance of Showers. Highs in the upper 60s. East Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 31 Oct Sangamon

Mostly cloudy. Lows in the mid 50s. East Winds 5 to 10 Mph.

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  • 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

    63.1 °F

  • Highest 13 October, 2026

    92.6 °F

Climate (2021–2026)

Springfield - Abraham Lincoln Capital Airport (11.2 miles)

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  • Average Low 2021–2026

    45 °F

  • Average 2021–2026

    55.7 °F

  • Average High 2021–2026

    65.8 °F
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