Johnstown Weather Forecast

    • 54
    • 68

    Mostly Cloudy

    • 54
    • 72

    Partly Sunny

    • 61
    • 79

    Partly Sunny

    • 62
    • 81

    Chance Thunderstorms

    • 58
    • 78

    Slight Chance Thunderstorms

    • 59
    • 76

    Partly Sunny

Today 24 Aug Cambria

Mostly cloudy in the Morning, then becoming partly sunny. Highs in the mid 60s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 24 Aug Cambria

Mostly cloudy. Lows in the lower 50s. West Winds 5 to 10 Mph with Gusts up to 25 Mph.

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Johnstown Temperature Statistics

August Temperature

Johnstown - Cambria County Airport (4.3 miles)

  • Lowest 21 August, 2026

    55.9 °F

  • Average August

    70 °F

  • Highest 6 August, 2026

    81.6 °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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