Chatham Weather Forecast

    • 57
    • 81

    Mostly Sunny

    • 47
    • 85

    Rain Showers

    • 36
    • 57

    Chance Rain Showers

    • 38
    • 60

    Mostly Sunny

    • 50
    • 68

    Mostly Sunny

    • 53
    • 74

    Mostly Sunny

Today 16 Apr Sangamon

Sunny. Highs around 80. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 16 Apr Sangamon

Mostly clear. Lows in the upper 50s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chatham Temperature Statistics

April Temperature

Springfield - Abraham Lincoln Capital Airport (11.2 miles)

  • Lowest 7 April, 2026

    35.7 °F
  • Average April

    58.7 °F
  • Highest 13 April, 2026

    82.9 °F

Climate (2021–Present)

Springfield - Abraham Lincoln Capital Airport (11.2 miles)

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  • Average Low 2021–2026

    44.9 °F
  • Average 2021–2026

    55.4 °F
  • Average High 2021–2026

    65.5 °F
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