Johnstown Weather Forecast

    • 59
    • 79

    Rain Showers Likely

    • 59
    • 77

    Mostly Sunny

    • 61
    • 79

    Chance Thunderstorms

    • 55
    • 76

    Chance Thunderstorms

    • 57
    • 75

    Mostly Cloudy

    • 59
    • 77

    Chance Thunderstorms

Today 17 Aug Cambria

Mostly cloudy in the Morning, then becoming partly sunny. Patchy fog in the morning. A chance of Showers. A slight chance of Thunderstorms in the Morning, then a chance of Thunderstorms in the afternoon. Humid with Highs in the upper 70s. West Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 50 percent.

Tonight 17 Aug Cambria

Partly cloudy. Cooler with Lows in the upper 50s. Northwest Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnstown Temperature Statistics

August Temperature

Johnstown - Cambria County Airport (4.3 miles)

  • Lowest 4 August, 2026

    57.7 °F

  • Average August

    70.9 °F

  • Highest 6 August, 2026

    81.6 °F

Climate (2021–2026)

Johnstown - Cambria County Airport (4.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    42.8 °F

  • Average 2021–2026

    50.6 °F

  • Average High 2021–2026

    58.6 °F
Get WillyWeather+ to remove ads