Harvard Park Weather Forecast

    • 64
    • 85

    Rain Showers Likely

    • 58
    • 70

    Chance Rain Showers

    • 53
    • 69

    Mostly Cloudy

    • 53
    • 71

    Partly Sunny

    • 55
    • 73

    Mostly Cloudy

    • 53
    • 75

    Partly Sunny

Today 20 Sep Sangamon

Mostly cloudy with a slight chance of Showers and Thunderstorms this Morning, then partly sunny with a chance of Showers and Thunderstorms this afternoon. Highs in the mid 80s. North Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 20 Sep Sangamon

Mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then Showers likely with a slight chance of Thunderstorms after midnight. Lows in the lower 60s. Northeast Winds around 10 Mph. Chance of rain 60 percent.

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Harvard Park Temperature Statistics

September Temperature

Springfield - Abraham Lincoln Capital Airport (5 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 (5 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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