Waterloo Weather Forecast

    • 14
    • 33

    Partly cloudy

    • 16
    • 24

    Shower

    • 10
    • 23

    Cloudy

    • 11
    • 23

    Cloudy

    • 9
    • 24

    Partly cloudy

    • 10
    • 27

    Partly cloudy

    • 11
    • 29

    Partly cloudy

Today 20 Dec Mid North

Mostly sunny. Slight chance of a shower in the east, near zero chance elsewhere. The chance of a thunderstorm in the north in the late afternoon and evening. Winds southeast to southwesterly 15 to 20 km/h tending west to southwesterly 15 to 25 km/h in the middle of the day then tending southeast to southwesterly 15 to 20 km/h in the evening. Overnight temperatures falling to around 14 with daytime temperatures reaching 30 to 35.

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Waterloo Temperature Statistics View More

December Temperature

Eudunda (27km)

  • Lowest 2 December, 2025

    2.5 °C
  • Average December

    19.3 °C
  • Highest 18 December, 2025

    39.2 °C

Climate (2020–Present)

Eudunda (27km)

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  • Average Low 2020–2025

    9.8 °C
  • Average 2020–2025

    13.7 °C
  • Average High 2020–2025

    21.2 °C
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