Plainfield Weather Forecast

    • 68
    • 85

    Slight Chance Rain Showers

    • 54
    • 80

    Decreasing Clouds

    • 63
    • 75

    Rain Showers Likely

    • 60
    • 77

    Rain Showers

    • 56
    • 69

    Rain Showers Likely

    • 50
    • 60

    Rain Showers Likely

    • 50
    • 59

    Chance Rain Showers

Today 17 Sep Cumberland

Partly sunny with a 30 percent chance of Showers. Highs in the lower 60s.

Tonight 17 Sep Cumberland

Mostly cloudy with a chance of Showers and Thunderstorms this Evening, then partly cloudy after midnight. Patchy fog. Lows in the upper 60s. West Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Plainfield Temperature Statistics

September Temperature

Harrisburg, Capital City Airport (23 miles)

  • Lowest 15 September, 2026

    48.9 °F

  • Average September

    72.7 °F

  • Highest 1 September, 2026

    91.9 °F

Climate (2021–2026)

Harrisburg, Capital City Airport (23 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    56.9 °F

  • Average High 2021–2026

    66.2 °F
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