Chatham Weather Forecast

    • 57
    • 80

    Increasing Clouds

    • 45
    • 64

    Rain Showers Likely

    • 59
    • 69

    Chance Rain Showers

    • 63
    • 78

    Rain Showers Likely

    • 66
    • 83

    Rain Showers Likely

    • 59
    • 81

    Rain Showers Likely

Today 9 Apr Sangamon

Mostly sunny. Highs in the upper 70s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 9 Apr Sangamon

Mostly cloudy. A slight chance of Showers and Thunderstorms in the Evening, then a chance of Showers and Thunderstorms after midnight. Lows in the upper 50s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

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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

    35.1 °F

  • Average April

    53.5 °F

  • Highest 3 April, 2026

    80.7 °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

    55.3 °F

  • Average High 2021–2026

    65.4 °F
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