Johnstown Weather Forecast

    • 69
    • 85

    Mostly Cloudy

    • 70
    • 87

    Partly Sunny

    • 70
    • 90

    Chance Rain Showers

    • 65
    • 86

    Rain Showers Likely

    • 60
    • 81

    Chance Rain Showers

    • 59
    • 78

    Chance Rain Showers

Today 31 Aug Cambria

Partly sunny. A chance of Showers in the morning. Humid with Highs in the lower 80s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 31 Aug Cambria

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Near steady temperature in the mid 60s. Light and variable Winds. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnstown Temperature Statistics

August Temperature

Johnstown - Cambria County Airport (4.3 miles)

  • Lowest 24 August, 2026

    52.6 °F

  • Average August

    69 °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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