Western Sister Weather Forecast
- 7
- 17
Partly cloudy
- 10
- 20
Partly cloudy
- 14
- 20
Shower
- 12
- 18
Partly cloudy
- 12
- 25
Shower
- 12
- 17
Shower
- 10
- 17
Shower
Today 29 Oct Mornington Peninsula
Mostly sunny. Light winds becoming southerly 15 to 20 km/h in the late afternoon then tending southeasterly in the evening.
Port Phillip Local Waters
- Wind
- Variable below 10 knots becoming south to southeasterly 10 to 15 knots in the late afternoon.
- Seas
- Below 1 metre.
- Weather
- Mostly sunny.
- Weather Situation
- A broad trough will linger over Victoria as a high moves eastwards over Tasmania on Wednesday. The high will move to the Tasman Sea on Thursday clearing the trough and directing a warmer northerly flow over Victoria. Another low pressure trough is likely to move across Victoria on Friday.
Western Sister Temperature Statistics View More
October Temperature
Cerberus (36km)
Lowest 28 October, 2025
2.2 °CAverage October
13.3 °CHighest 16 October, 2025
29.8 °C
Climate (2020–Present)
Cerberus (36km)
Average Low 2020–2025
10.2 °CAverage 2020–2025
14.5 °CAverage High 2020–2025
19.6 °C