Penns Grove Weather Forecast

    • 68
    • 84

    Partly Sunny

    • 72
    • 88

    Mostly Sunny

    • 76
    • 94

    Chance Thunderstorms

    • 74
    • 91

    Chance Thunderstorms

    • 72
    • 84

    Chance Thunderstorms

    • 72
    • 88

    Chance Rain Showers

Today 23 Jul Salem

Mostly sunny. Hot with Highs in the mid 80s. East Winds around 5 Mph, becoming south in the afternoon.

Tonight 23 Jul Salem

Mostly clear. Humid with Lows in the upper 60s. South Winds 5 to 10 Mph.

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Penns Grove Temperature Statistics

July Temperature

Wilmington, New Castle County Airport (8.1 miles)

  • Lowest 5 July, 2025

    61.6 °F

  • Average July

    80.2 °F

  • Highest 8 July, 2025

    94.6 °F

Climate (2020–Present)

Wilmington, New Castle County Airport (8.1 miles)

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  • Average Low 2020–2025

    48.2 °F

  • Average 2020–2025

    57.3 °F

  • Average High 2020–2025

    66.5 °F
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