Johnstown Weather Forecast

    • 63
    • 76

    Rain Showers Likely

    • 66
    • 85

    Partly Sunny

    • 70
    • 89

    Mostly Sunny

    • 71
    • 91

    Mostly Sunny

    • 71
    • 93

    Mostly Sunny

    • 69
    • 92

    Chance Thunderstorms

Today 28 Jun Cambria

Mostly cloudy with a chance of Showers and Thunderstorms. Highs in the mid 70s. East Winds around 5 Mph. Chance of rain 50 percent.

Tonight 28 Jun Cambria

Mostly cloudy with a chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Humid with Lows in the lower 60s. Southeast Winds around 5 Mph. Chance of rain 50 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 °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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