John Heinz National Wildlife Refuge Weather Forecast

    • 34
    • 54

    Partly Sunny

    • 46
    • 56

    Rain

    • 42
    • 52

    Rain

    • 29
    • 51

    Slight Chance Rain

    • 31
    • 42

    Mostly Sunny

    • 34
    • 47

    Partly Sunny

    • 34
    • 48

    Mostly Cloudy

Today 8 Jan Philadelphia

Mostly sunny. Highs around 50. Northwest Winds around 5 Mph.

Tonight 8 Jan Philadelphia

Partly cloudy this Evening, then becoming mostly cloudy. Lows in the mid 30s. Light and variable Winds.

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John Heinz National Wildlife Refuge Temperature Statistics

January Temperature

Philadelphia, Philadelphia International Airport (1.9 miles)

  • Lowest 3 January, 2026

    23 °F

  • Average January

    31.9 °F

  • Highest 6 January, 2026

    45 °F

Climate (2021–Present)

Philadelphia, Philadelphia International Airport (1.9 miles)

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  • Average Low 2021–2026

    50.2 °F

  • Average 2021–2026

    58.3 °F

  • Average High 2021–2026

    66.9 °F
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