Waterloo Weather Forecast

    • 26
    • 37

    Decreasing Clouds

    • 26
    • 46

    Mostly Sunny

    • 32
    • 49

    Partly Sunny

    • 31
    • 51

    Partly Sunny

    • 38
    • 52

    Mostly Cloudy

    • 41
    • 54

    Rain Likely

Today 12 Feb Jefferson

Mostly cloudy in the morning then clearing. Highs in the upper 30s. Southeast Winds up to 5 Mph.

Tonight 12 Feb Jefferson

Partly cloudy. Near steady temperature in the lower 20s. Calm Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Waterloo Temperature Statistics

February Temperature

Watertown (13 miles)

  • Lowest 4 February, 2026

    -5.6 °F

  • Average February

    19.5 °F

  • Highest 6 February, 2026

    36.5 °F

Climate (2021–Present)

Watertown (13 miles)

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  • Average Low 2021–2026

    35.6 °F

  • Average 2021–2026

    45.4 °F

  • Average High 2021–2026

    54.5 °F
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