Chatham Weather Forecast

    • 34
    • 52

    Slight Chance Freezing Drizzle

    • 35
    • 68

    Mostly Sunny

    • 24
    • 54

    Chance Rain

    • 22
    • 37

    Rain/Snow Likely

    • 22
    • 35

    Chance Rain

    • 27
    • 39

    Chance Rain

Today 26 Feb Sangamon

Mostly cloudy with a slight chance of freezing drizzle this Morning, then mostly sunny this afternoon. Highs in the lower 50s. East Winds around 5 Mph, becoming southwest this afternoon.

Tonight 26 Feb Sangamon

Clear. Lows in the mid 30s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chatham Temperature Statistics

February Temperature

Springfield - Abraham Lincoln Capital Airport (11.2 miles)

  • Lowest 1 February, 2026

    -2.3 °F

  • Average February

    34.7 °F

  • Highest 18 February, 2026

    68.6 °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

    65.3 °F
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