Penns Grove Weather Forecast

    • 61
    • 75

    Patchy Fog

    • 64
    • 78

    Mostly Cloudy

    • 66
    • 80

    Partly Sunny

    • 64
    • 84

    Chance Rain Showers

    • 58
    • 72

    Rain Showers Likely

    • 57
    • 68

    Chance Rain Showers

    • 49
    • 67

    Mostly Sunny

Today 29 Sep Salem

Sunny. Highs in the lower 60s.

Tonight 29 Sep Salem

Mostly cloudy. Patchy fog. Lows in the lower 60s. West Winds around 5 Mph.

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  • Temperature Real-Time

Penns Grove Temperature Statistics

September Temperature

Wilmington, New Castle County Airport (8.1 miles)

  • Lowest 24 September, 2026

    49.6 °F

  • Average September

    71.5 °F

  • Highest 1 September, 2026

    93.7 °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

    57.4 °F

  • Average High 2021–2026

    66.7 °F
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