Lewistown Weather Forecast

    • 44
    • 73

    Becoming Sunny

    • 47
    • 75

    Mostly Sunny

    • 48
    • 77

    Mostly Sunny

    • 50
    • 78

    Mostly Sunny

    • 53
    • 83

    Mostly Sunny

    • 51
    • 79

    Mostly Sunny

    • 52
    • 79

    Partly Sunny

Today 7 Sep Mifflin

Mostly sunny. Near steady temperature around 70. Northwest Winds 5 to 10 Mph.

Tonight 7 Sep Mifflin

Mostly clear. Cooler with Lows in the mid 40s. Northwest Winds around 5 Mph.

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Lewistown Temperature Statistics

September Temperature

State College - University Park Airport (22.4 miles)

  • Lowest 1 September, 2025

    48.2 °F

  • Average September

    62.5 °F

  • Highest 5 September, 2025

    80.6 °F

Climate (2020–Present)

State College - University Park Airport (22.4 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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