Williamstown Weather Forecast
- 14
- 20
Showers
- 10
- 16
Shower or two
- 8
- 15
Cloudy
- 6
- 14
Partly cloudy
- 5
- 17
Sunny
- 7
- 21
Sunny
- 10
- 24
Sunny
Today 13 Sep Adelaide
Partly cloudy. Very high chance of showers, becoming less likely in the afternoon. The chance of a thunderstorm in the late morning and afternoon. Winds north to northwesterly 25 to 35 km/h turning westerly 20 to 30 km/h in the middle of the day.
Williamstown Temperature Statistics View More
September Temperature
Mount Crawford (Fire Tower) (7km)
Lowest 10 September, 2026
4 °CAverage September
10.2 °CHighest 1 September, 2026
17.9 °C
Climate (2021–2026)
Mount Crawford (Fire Tower) (7km)
Average Low 2021–2026
9.8 °CAverage 2021–2026
13.7 °CAverage High 2021–2026
19.2 °C