Plainfield Weather Forecast

    • 57
    • 77

    Chance Rain Showers

    • 47
    • 75

    Mostly Sunny

    • 47
    • 74

    Mostly Sunny

    • 49
    • 76

    Partly Sunny

    • 51
    • 76

    Mostly Sunny

    • 51
    • 81

    Mostly Sunny

Today 6 Sep Cumberland

Partly sunny with a chance of Showers with a slight chance of Thunderstorms. Some Thunderstorms may produce gusty Winds. Near steady temperature in the mid 70s. West Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 6 Sep Cumberland

Mostly cloudy. A slight chance of Showers and Thunderstorms in the Evening, then a chance of Showers after midnight. Some Thunderstorms may produce gusty Winds in the evening. Lows in the upper 50s. West Winds around 5 Mph. Chance of rain 40 percent.

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Plainfield Temperature Statistics

September Temperature

Harrisburg, Capital City Airport (23 miles)

  • Lowest 1 September, 2025

    52 °F

  • Average September

    67.8 °F

  • Highest 4 September, 2025

    81 °F

Climate (2020–Present)

Harrisburg, Capital City Airport (23 miles)

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  • Average Low 2020–2025

    48 °F

  • Average 2020–2025

    57.3 °F

  • Average High 2020–2025

    66.7 °F
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