Waterloo Weather Forecast

    • 7
    • 32

    Mostly Cloudy

    • 3
    • 12

    Mostly Cloudy

    • 11
    • 12

    Snow

    • 3
    • 17

    Chance Snow

    • 6
    • 11

    Mostly Sunny

    • 14
    • 22

    Mostly Cloudy

Today 22 Jan Johnson

Partly cloudy. Cooler with Highs in the lower 30s. West Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 22 Jan Johnson

Partly cloudy. Colder with Lows around 10 above. West Winds 10 to 15 Mph. Gusts up to 20 Mph late this afternoon. Wind chill Values as low as 1 below toward daybreak.

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Waterloo Temperature Statistics

January Temperature

Indianapolis International Airport (11.8 miles)

  • Lowest 20 January, 2026

    5 °F

  • Average January

    31.7 °F

  • Highest 9 January, 2026

    64 °F

Climate (2021–Present)

Indianapolis International Airport (11.8 miles)

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  • Average Low 2021–2026

    46.6 °F

  • Average 2021–2026

    55.5 °F

  • Average High 2021–2026

    64.8 °F
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