Chatham Weather Forecast

    • 69
    • 85

    Chance Thunderstorms

    • 69
    • 90

    Chance Thunderstorms

    • 69
    • 85

    Rain Showers

    • 69
    • 84

    Rain Showers

    • 71
    • 90

    Chance Thunderstorms

    • 73
    • 94

    Mostly Sunny

Today 5 Jun Sangamon

Partly sunny late this Morning, then becoming mostly cloudy. A slight chance of Showers and Thunderstorms late this Morning, then a chance of Showers and Thunderstorms this afternoon. Highs in the mid 80s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 50 percent.

Tonight 5 Jun Sangamon

Mostly cloudy. Lows in the upper 60s. Southwest Winds 10 to 15 Mph.

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Chatham Temperature Statistics

June Temperature

Springfield - Abraham Lincoln Capital Airport (11.2 miles)

  • Lowest 3 June, 2026

    50 °F

  • Average June

    71.7 °F

  • Highest 1 June, 2026

    88.6 °F

Climate (2021–Present)

Springfield - Abraham Lincoln Capital Airport (11.2 miles)

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  • Average Low 2021–2026

    45 °F

  • Average 2021–2026

    55.5 °F

  • Average High 2021–2026

    65.6 °F
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