Westchester Weather Forecast

    • 34
    • 59

    Increasing Clouds

    • 45
    • 55

    Mostly Cloudy

    • 52
    • 56

    Slight Chance Rain

    • 46
    • 65

    Partly Sunny

    • 29
    • 65

    Mostly Cloudy

    • 13
    • 34

    Mostly Sunny

Today 23 Dec Sangamon

Sunny. Not as cool with Highs in the upper 50s. Northwest Winds 5 to 10 Mph.

Tonight 23 Dec Sangamon

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 30s. Northeast Winds around 5 Mph.

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Westchester Temperature Statistics

December Temperature

Springfield - Abraham Lincoln Capital Airport (6.2 miles)

  • Lowest 14 December, 2025

    -6 °F

  • Average December

    26.1 °F

  • Highest 18 December, 2025

    54 °F

Climate (2020–Present)

Springfield - Abraham Lincoln Capital Airport (6.2 miles)

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  • Average Low 2020–2025

    44.8 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    65 °F
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