Waterloo Weather Forecast

    • 52
    • 74

    Increasing Clouds

    • 60
    • 79

    Rain Showers Likely

    • 46
    • 72

    Rain Showers Likely

    • 43
    • 66

    Partly Sunny

    • 49
    • 67

    Rain Showers Likely

    • 46
    • 68

    Rain Showers Likely

Today 22 Apr Jefferson

Sunny. Highs in the lower 70s. East Winds 5 to 10 Mph.

Tonight 22 Apr Jefferson

Clear in the evening then becoming partly cloudy. Lows in the lower 50s. Southeast Winds 5 to 10 Mph.

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  • Temperature Real-Time

Waterloo Temperature Statistics

April Temperature

Watertown (13 miles)

  • Lowest 7 April, 2026

    19.6 °F

  • Average April

    47.3 °F

  • Highest 17 April, 2026

    77 °F

Climate (2021–Present)

Watertown (13 miles)

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  • Average Low 2021–2026

    35.8 °F

  • Average 2021–2026

    45.6 °F

  • Average High 2021–2026

    54.7 °F
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