Westchester Weather Forecast

    • 70
    • 90

    Decreasing Clouds

    • 62
    • 85

    Rain Showers Likely

    • 57
    • 72

    Rain Showers Likely

    • 53
    • 68

    Partly Sunny

    • 54
    • 70

    Partly Sunny

    • 57
    • 73

    Partly Sunny

Today 19 Sep Sangamon

Mostly cloudy. A slight chance of Showers and Thunderstorms early. Highs around 90. West Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 19 Sep Sangamon

Mostly cloudy. Lows around 70. South Winds around 5 Mph.

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  • Temperature Real-Time

Westchester Temperature Statistics

September Temperature

Springfield - Abraham Lincoln Capital Airport (6.2 miles)

  • Lowest 14 September, 2026

    56.6 °F

  • Average September

    79.8 °F

  • Highest 2 September, 2026

    100.7 °F

Climate (2021–2026)

Springfield - Abraham Lincoln Capital Airport (6.2 miles)

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  • Average Low 2021–2026

    45.1 °F

  • Average 2021–2026

    55.6 °F

  • Average High 2021–2026

    65.7 °F
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