Penns Grove Weather Forecast

    • 36
    • 49

    Mostly Cloudy

    • 47
    • 60

    Rain Likely

    • 45
    • 64

    Mostly Cloudy

    • 43
    • 68

    Chance Rain

    • 30
    • 54

    Partly Sunny

    • 33
    • 47

    Mostly Cloudy

Today 19 Mar Salem

Partly sunny. Highs in the upper 40s. South Winds 5 to 10 Mph.

Tonight 19 Mar Salem

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the mid 30s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Penns Grove Temperature Statistics

March Temperature

Wilmington, New Castle County Airport (8.1 miles)

  • Lowest 2 March, 2026

    25.6 °F

  • Average March

    47.5 °F

  • Highest 10 March, 2026

    82.9 °F

Climate (2021–Present)

Wilmington, New Castle County Airport (8.1 miles)

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  • Average Low 2021–2026

    47.9 °F

  • Average 2021–2026

    57.2 °F

  • Average High 2021–2026

    66.5 °F
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