Grafton Primary Industries Institute Weather Forecast

    • 15
    • 26

    Partly cloudy

    • 14
    • 29

    Mostly sunny

    • 15
    • 25

    Showers easing

    • 12
    • 25

    Mostly sunny

    • 12
    • 27

    Mostly sunny

    • 11
    • 25

    Shower or two

    • 9
    • 24

    Partly cloudy

Today 18 Sep Northern Rivers

Partly cloudy. The chance of fog in the north in the early morning. Slight chance of a shower. Light winds becoming southeasterly 15 to 25 km/h in the morning then becoming light in the late evening. Overnight temperatures falling to between 14 and 17 with daytime temperatures reaching the mid to high 20s.

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Grafton Primary Industries Institute Temperature Statistics View More

September Temperature

Grafton (Agricultural Research and Advisory Station) (0km)

  • Lowest 12 September, 2025

    8.1 °C

  • Average September

    16.7 °C

  • Highest 16 September, 2025

    26.8 °C

Climate (2020–Present)

Grafton (Agricultural Research and Advisory Station) (0km)

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  • Average Low 2020–2025

    14.2 °C

  • Average 2020–2025

    19.1 °C

  • Average High 2020–2025

    25.8 °C
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