Altoona Weather Forecast

    • 57
    • 74

    Mostly Cloudy

    • 62
    • 71

    Rain Showers

    • 57
    • 72

    Rain Showers

    • 43
    • 65

    Partly Sunny

    • 43
    • 65

    Mostly Sunny

    • 45
    • 65

    Partly Sunny

    • 39
    • 62

    Partly Sunny

Today 28 Sep Eau Claire

Partly sunny. Near steady temperature in the lower 70s. South Winds around 5 Mph.

Tonight 28 Sep Eau Claire

Increasing Clouds. Lows in the mid 50s. South Winds up to 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Altoona Temperature Statistics

September Temperature

Chippewa Valley Regional Airport (4.3 miles)

  • Lowest 14 September, 2026

    38.6 °F

  • Average September

    65 °F

  • Highest 1 September, 2026

    89.7 °F

Climate (2021–2026)

Chippewa Valley Regional Airport (4.3 miles)

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  • Average Low 2021–2026

    36.9 °F

  • Average 2021–2026

    47.2 °F

  • Average High 2021–2026

    57.1 °F
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