Johnstown Weather Forecast

    • 53
    • 78

    Increasing Clouds

    • 61
    • 81

    Partly Sunny

    • 67
    • 83

    Mostly Cloudy

    • 56
    • 77

    Rain Showers Likely

    • 54
    • 74

    Partly Sunny

    • 59
    • 78

    Partly Sunny

Today 7 Sep Cambria

Mostly sunny. Highs in the mid 70s. East Winds around 5 Mph.

Tonight 7 Sep Cambria

Mostly clear. Lows in the lower 50s. East Winds around 5 Mph.

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Johnstown Temperature Statistics

September Temperature

Johnstown - Cambria County Airport (4.3 miles)

  • Lowest 4 September, 2026

    64 °F

  • Average September

    73.8 °F

  • Highest 2 September, 2026

    85.6 °F

Climate (2021–2026)

Johnstown - Cambria County Airport (4.3 miles)

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  • Average Low 2021–2026

    42.8 °F

  • Average 2021–2026

    50.6 °F

  • Average High 2021–2026

    58.6 °F
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