Casterton Weather Forecast
- 7
- 14
Partly cloudy
- 6
- 13
Showers. Windy
- 10
- 15
Showers
- 9
- 13
Showers
- 6
- 13
Showers
- 6
- 15
Shower or two
- 8
- 17
Shower or two
Today 31 May South West
Partly cloudy. Medium chance of showers near the Otways, slight chance elsewhere. Winds westerly 20 to 30 km/h turning northwesterly 15 to 20 km/h in the evening.
Casterton Temperature Statistics View More
May Temperature
Casterton (5km)
Lowest 22 May, 2026
-0.3 °CAverage May
13 °CHighest 1 May, 2026
27.9 °C
Climate (2021–Present)
Casterton (5km)
Average Low 2021–2026
8.4 °CAverage 2021–2026
13.6 °CAverage High 2021–2026
19.8 °C