Altoona Weather Forecast

    • 66
    • 86

    Chance Rain Showers

    • 65
    • 85

    Rain Showers Likely

    • 51
    • 79

    Partly Sunny

    • 59
    • 75

    Rain Showers

    • 57
    • 77

    Rain Showers

    • 57
    • 70

    Chance Rain Showers

    • 55
    • 71

    Chance Rain Showers

Today 16 Sep Blair

Mostly cloudy with a 40 percent chance of Showers. Highs in the upper 60s.

Tonight 16 Sep Blair

Mostly cloudy. A slight chance of Showers and Thunderstorms this Evening, then a chance of Showers after midnight. Patchy fog. Not as cool with Lows in the mid 60s. West Winds around 5 Mph this Evening, becoming light and variable. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Altoona Temperature Statistics

September Temperature

Altoona - Blair County Airport (15.5 miles)

  • Lowest 14 September, 2026

    48.9 °F

  • Average September

    71.1 °F

  • Highest 1 September, 2026

    90.6 °F

Climate (2021–2026)

Altoona - Blair County Airport (15.5 miles)

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  • Average Low 2021–2026

    43 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    62.2 °F
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