Waterloo Weather Forecast

    • 12
    • 23

    Slight Chance Snow Showers

    • 22
    • 32

    Partly Sunny

    • 23
    • 44

    Mostly Cloudy

    • 30
    • 46

    Rain Showers

    • 20
    • 38

    Partly Sunny

    • 30
    • 38

    Mostly Cloudy

    • 25
    • 43

    Mostly Cloudy

Today 15 Dec Juniata

Cloudy with a 20 percent chance of snow Showers. Highs in the mid 20s. West Winds around 5 Mph.

Tonight 15 Dec Juniata

Mostly cloudy this Evening, then clearing. Lows around 15. South Winds around 5 Mph.

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Waterloo Temperature Statistics

December Temperature

Altoona - Blair County Airport (32.3 miles)

  • Lowest 9 December, 2025

    7 °F

  • Average December

    26.9 °F

  • Highest 10 December, 2025

    39.9 °F

Climate (2020–Present)

Altoona - Blair County Airport (32.3 miles)

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  • Average Low 2020–2025

    43.3 °F

  • Average 2020–2025

    52.6 °F

  • Average High 2020–2025

    62.1 °F
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