Grahamstown Lake Weather Forecast

    • 21
    • 28

    Showers. Afternoon storm

    • 16
    • 30

    Possible shower

    • 17
    • 35

    Mostly sunny

    • 19
    • 28

    Possible shower

    • 18
    • 24

    Showers. Possible storm

    • 17
    • 25

    Showers

    • 16
    • 30

    Shower or two

Today 7 Dec Hunter

Cloudy. Medium chance of showers, becoming less likely in the afternoon. The chance of smoke haze. The chance of a thunderstorm in the afternoon and early evening, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding. Winds southeasterly 25 to 35 km/h. Daytime maximum temperatures 25 to 31.

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  • Temperature Forecast Bureau of Meteorology

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Grahamstown Lake Temperature Statistics View More

December Temperature

Williamtown RAAF Base (5km)

  • Lowest 2 December, 2025

    11.3 °C

  • Average December

    22.5 °C

  • Highest 5 December, 2025

    38.3 °C

Climate (2020–Present)

Williamtown RAAF Base (5km)

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  • Average Low 2020–2025

    13.3 °C

  • Average 2020–2025

    18 °C

  • Average High 2020–2025

    23.7 °C
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