Waterloo Weather Forecast

    • 63
    • 79

    Mostly Cloudy

    • 52
    • 75

    Mostly Sunny

    • 50
    • 70

    Mostly Sunny

    • 46
    • 67

    Mostly Sunny

    • 46
    • 69

    Mostly Sunny

    • 52
    • 72

    Mostly Sunny

Today 22 Aug Jefferson

Partly sunny. Patchy fog in the morning. Highs in the upper 70s. Southwest Winds up to 5 Mph.

Tonight 22 Aug Jefferson

Partly cloudy. Patchy fog through the night. Lows in the upper 50s. Calm Winds.

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Waterloo Temperature Statistics

August Temperature

Watertown (13 miles)

  • Lowest

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  • Average August

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Climate (2020–Present)

Watertown (13 miles)

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  • Average Low 2020–2025

    36 °F

  • Average 2020–2025

    45.7 °F

  • Average High 2020–2025

    54.8 °F
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