Chatham Weather Forecast

    • 62
    • 80

    Slight Chance Rain Showers

    • 63
    • 83

    Rain Showers

    • 61
    • 78

    Thunderstorms

    • 56
    • 75

    Partly Sunny

    • 59
    • 78

    Partly Sunny

    • 59
    • 80

    Partly Sunny

Today 19 Jun Sangamon

Mostly sunny. Near steady temperature in the upper 70s. Northwest Winds 5 to 10 Mph.

Tonight 19 Jun Sangamon

Mostly cloudy. A slight chance of Showers after midnight. Lows in the lower 60s. West Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chatham Temperature Statistics

June Temperature

Springfield - Abraham Lincoln Capital Airport (11.2 miles)

  • Lowest 3 June, 2026

    50.6 °F

  • Average June

    73.3 °F

  • Highest 10 June, 2026

    90.6 °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

    55.5 °F

  • Average High 2021–2026

    65.6 °F
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