Waterloo Weather Forecast

    • 62
    • 71

    Increasing Clouds

    • 64
    • 75

    Rain Showers

    • 33
    • 69

    Rain Showers

    • 39
    • 47

    Mostly Cloudy

    • 33
    • 57

    Breezy

    • 44
    • 55

    Chance Rain

Today 9 Mar Johnson

Mostly sunny. Highs around 70. Southwest Winds around 15 Mph with Gusts up to 25 Mph.

Tonight 9 Mar Johnson

Partly cloudy late this Afternoon, then mostly cloudy with isolated Showers toward daybreak. Not as cool with Lows in the lower 60s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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Waterloo Temperature Statistics

March Temperature

Indianapolis International Airport (11.8 miles)

  • Lowest 2 March, 2026

    26.1 °F

  • Average March

    49.1 °F

  • Highest 6 March, 2026

    78.1 °F

Climate (2021–Present)

Indianapolis International Airport (11.8 miles)

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  • Average Low 2021–2026

    46.6 °F

  • Average 2021–2026

    55.6 °F

  • Average High 2021–2026

    64.9 °F
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