Waterloo Weather Forecast

    • 33
    • 44

    Mostly Cloudy

    • 36
    • 54

    Mostly Cloudy

    • 39
    • 63

    Mostly Cloudy

    • 25
    • 46

    Mostly Cloudy

    • 29
    • 43

    Mostly Cloudy

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    Mostly Cloudy

Today 19 Mar Jefferson

Partly sunny. Patchy fog in the morning. Highs in the mid 40s. Southeast Winds up to 5 Mph.

Tonight 19 Mar Jefferson

Mostly cloudy. Lows in the lower 30s. Southeast Winds around 5 Mph shifting to the southwest after midnight.

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Waterloo Temperature Statistics

March Temperature

Watertown (13 miles)

  • Lowest 1 March, 2026

    7.2 °F

  • Average March

    36.9 °F

  • Highest 9 March, 2026

    68.9 °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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