Altoona Weather Forecast

    • 56
    • 84

    Mostly Sunny

    • 55
    • 83

    Partly Sunny

    • 54
    • 80

    Partly Sunny

    • 55
    • 76

    Slight Chance Rain Showers

    • 56
    • 83

    Mostly Sunny

    • 53
    • 85

    Partly Sunny

    • 53
    • 79

    Mostly Cloudy

Today 14 Sep Blair

Sunny. Very warm with Highs in the lower 80s. Northeast Winds around 5 Mph.

Tonight 14 Sep Blair

Partly cloudy this Evening, then becoming mostly clear. Lows in the mid 50s. Northeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Altoona Temperature Statistics

September Temperature

Altoona - Blair County Airport (15.5 miles)

  • Lowest 8 September, 2025

    36 °F

  • Average September

    60.2 °F

  • Highest 5 September, 2025

    82.9 °F

Climate (2020–Present)

Altoona - Blair County Airport (15.5 miles)

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  • Average Low 2020–2025

    43.4 °F

  • Average 2020–2025

    52.7 °F

  • Average High 2020–2025

    62.2 °F
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