Westchester Weather Forecast

    • 71
    • 92

    Chance Thunderstorms

    • 68
    • 88

    Mostly Sunny

    • 76
    • 92

    Chance Thunderstorms

    • 66
    • 92

    Mostly Sunny

    • 61
    • 82

    Mostly Sunny

    • 62
    • 83

    Slight Chance Thunderstorms

Today 18 Jul Sangamon

Sunny with Highs in the lower 90s. West Winds around 10 Mph with Gusts up to 20 Mph. Heat index Values up to 102.

Tonight 18 Jul Sangamon

Partly cloudy. A chance of Showers and Thunderstorms, mainly in the evening. Humid with Lows in the lower 70s. West Winds 5 to 10 Mph, becoming northeast after midnight. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Westchester Temperature Statistics

July Temperature

Springfield - Abraham Lincoln Capital Airport (6.2 miles)

  • Lowest 13 July, 2026

    63 °F

  • Average July

    78.5 °F

  • Highest 2 July, 2026

    92.6 °F

Climate (2021–2026)

Springfield - Abraham Lincoln Capital Airport (6.2 miles)

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  • Average Low 2021–2026

    45 °F

  • Average 2021–2026

    55.5 °F

  • Average High 2021–2026

    65.6 °F
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