Johnstown Weather Forecast

    • 58
    • 75

    Slight Chance Rain Showers

    • 57
    • 75

    Rain Showers

    • 52
    • 75

    Partly Sunny

    • 57
    • 77

    Mostly Sunny

    • 59
    • 80

    Chance Thunderstorms

    • 58
    • 79

    Chance Thunderstorms

Today 21 Jun Cambria

Partly sunny. Near steady temperature in the lower 70s. Northwest Winds 5 to 10 Mph.

Tonight 21 Jun Cambria

Mostly cloudy. A slight chance of Showers after midnight. Lows in the upper 50s. Northwest Winds around 5 Mph, becoming southeast with Gusts up to 20 Mph after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnstown Temperature Statistics

June Temperature

Johnstown - Cambria County Airport (4.3 miles)

  • Lowest 16 June, 2026

    46.7 °F

  • Average June

    66.6 °F

  • Highest 11 June, 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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