Williamstown Weather Forecast

    • 19
    • 30

    Mostly sunny

    • 15
    • 23

    Showers increasing

    • 13
    • 19

    Rain

    • 8
    • 16

    Shower or two

    • 8
    • 17

    Shower or two

    • 9
    • 18

    Possible shower

    • 11
    • 19

    Possible shower

Today 23 Oct Melbourne

Mostly sunny. Slight chance of a shower during this afternoon and evening. The chance of a thunderstorm in the northwest suburbs late this afternoon and evening. Winds northerly 25 to 40 km/h tending north to northwesterly 15 to 20 km/h in the evening then becoming light in the late evening.

Port Phillip Local Waters

Wind
Northerly 15 to 20 knots shifting southerly 10 to 15 knots in the evening.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the morning, then decreasing below 1 metre during the afternoon.
Weather
Sunny day. The chance of a thunderstorm in the north late this afternoon and evening.
Weather Situation
A high pressure system centred over the Tasman Sea will drift slowly eastwards as a low pressure trough approaches from the west later today. This trough will linger over the State on Saturday and Sunday before a cold front crosses later Sunday into early Monday, clearing everything to the east.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Williamstown Temperature Statistics View More

October Temperature

Laverton RAAF Base (12 km)

  • Lowest 15 October, 2026

    3.8 °C

  • Average October

    16.1 °C

  • Highest 20 October, 2026

    29 °C

Climate (2021–2026)

Laverton RAAF Base (12 km)

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  • Average Low 2021–2026

    10.7 °C

  • Average 2021–2026

    15.2 °C

  • Average High 2021–2026

    20.7 °C
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