Grahamstown Lake Weather Forecast

    • 11
    • 31

    Becoming windy. Mostly sunny

    • 13
    • 23

    Sunny

    • 10
    • 22

    Shower or two

    • 11
    • 20

    Morning shower or two

    • 7
    • 21

    Shower or two

    • 10
    • 19

    Possible shower

    • 8
    • 20

    Partly cloudy

Today 5 Sep Hunter

Mostly sunny day. Slight chance of a shower in the late afternoon and evening. The chance of a thunderstorm about the Upper Hunter in the late afternoon and evening. Winds north to northwesterly 25 to 35 km/h becoming northwesterly 30 to 45 km/h in the middle of the day. Overnight temperatures falling to between 9 and 13 with daytime temperatures reaching 26 to 31.

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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Grahamstown Lake Temperature Statistics View More

September Temperature

Williamtown RAAF Base (5km)

  • Lowest 1 September, 2026

    5.4 °C

  • Average September

    17.8 °C

  • Highest 3 September, 2026

    29.6 °C

Climate (2021–2026)

Williamtown RAAF Base (5km)

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  • Average Low 2021–2026

    13.5 °C

  • Average 2021–2026

    18.2 °C

  • Average High 2021–2026

    24 °C
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