Westchester Weather Forecast

    • 25
    • 32

    Increasing Clouds

    • 20
    • 39

    Partly Sunny

    • 4
    • 32

    Mostly Cloudy

    • -3
    • 10

    Cold

    • 0
    • 11

    Mostly Cloudy

    • 7
    • 19

    Partly Sunny

Today 20 Jan Sangamon

Mostly sunny. Not as cool with Highs in the lower 30s. South Winds 10 to 15 Mph. Wind chill Values as low as 2 below in the morning.

Tonight 20 Jan Sangamon

Partly cloudy. Near steady temperature around 9 above. Southwest Winds around 5 Mph.

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Westchester Temperature Statistics

January Temperature

Springfield - Abraham Lincoln Capital Airport (6.2 miles)

  • Lowest 15 January, 2026

    12 °F

  • Average January

    35.2 °F

  • Highest 8 January, 2026

    64 °F

Climate (2021–Present)

Springfield - Abraham Lincoln Capital Airport (6.2 miles)

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  • Average Low 2021–2026

    44.9 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    65.1 °F
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