Chatham Weather Forecast

    • 47
    • 65

    Increasing Clouds

    • 49
    • 69

    Rain Showers Likely

    • 52
    • 79

    Chance Rain Showers

    • 42
    • 67

    Mostly Sunny

    • 48
    • 70

    Chance Rain Showers

    • 53
    • 75

    Chance Thunderstorms

Today 7 May Sangamon

Mostly sunny. Near steady temperature in the mid 60s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 7 May Sangamon

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 40s. Southwest Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chatham Temperature Statistics

May Temperature

Springfield - Abraham Lincoln Capital Airport (11.2 miles)

  • Lowest 1 May, 2026

    41.6 °F

  • Average May

    55.8 °F

  • Highest 4 May, 2026

    78.7 °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

    55.4 °F

  • Average High 2021–2026

    65.5 °F
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