The Arboretum at Penn State Weather Forecast

    • 57
    • 83

    Mostly Sunny

    • 55
    • 81

    Partly Sunny

    • 56
    • 80

    Partly Sunny

    • 56
    • 76

    Slight Chance Rain Showers

    • 55
    • 82

    Mostly Sunny

    • 53
    • 84

    Partly Sunny

    • 52
    • 77

    Slight Chance Thunderstorms

Today 14 Sep Southern Centre

Sunny. Highs in the lower 80s. Northeast Winds around 5 Mph.

Tonight 14 Sep Southern Centre

Mostly clear. Lows in the mid 50s. Northeast Winds around 5 Mph.

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The Arboretum at Penn State Temperature Statistics

September Temperature

State College - University Park Airport (3.1 miles)

  • Lowest 8 September, 2025

    41 °F

  • Average September

    59.9 °F

  • Highest 5 September, 2025

    80.6 °F

Climate (2020–Present)

State College - University Park Airport (3.1 miles)

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  • Average Low 2020–2025

    43 °F

  • Average 2020–2025

    50.3 °F

  • Average High 2020–2025

    60.4 °F
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