Penns Grove Weather Forecast

    • 60
    • 76

    Rain Showers

    • 63
    • 85

    Mostly Sunny

    • 65
    • 87

    Partly Sunny

    • 69
    • 86

    Chance Thunderstorms

    • 68
    • 85

    Chance Thunderstorms

    • 68
    • 86

    Slight Chance Thunderstorms

Today 23 Jun Salem

Showers likely with a slight chance of Thunderstorms. Not as warm. Humid with Highs in the upper 70s. West Winds around 5 Mph, becoming north 10 to 15 Mph in the afternoon. Chance of rain 70 percent.

Tonight 23 Jun Salem

Showers likely with a slight chance of Thunderstorms. Some Thunderstorms may produce heavy rainfall. Near steady temperature around 70. Southwest Winds 5 to 10 Mph. Chance of rain 60 percent.

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Penns Grove Temperature Statistics

June Temperature

Wilmington, New Castle County Airport (8.1 miles)

  • Lowest 2 June, 2026

    47.6 °F

  • Average June

    74.4 °F

  • Highest 12 June, 2026

    97.6 °F

Climate (2021–2026)

Wilmington, New Castle County Airport (8.1 miles)

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  • Average Low 2021–2026

    47.9 °F

  • Average 2021–2026

    57.3 °F

  • Average High 2021–2026

    66.6 °F
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