Blacktown Weather Forecast
- 19
- 26
Possible storm
- 19
- 27
Shower or two. Possible storm
- 18
- 27
Shower or two
- 18
- 28
Shower or two
- 18
- 27
Possible shower
- 17
- 28
Partly cloudy
- 17
- 29
Shower or two developing
Today 20 Mar Sydney
Partly cloudy. Slight chance of a shower, becoming less likely later this evening. The chance of a thunderstorm early this evening. Light winds.
Blacktown Temperature Statistics View More
March Temperature
Horsley Park (10km)
Lowest 15 March, 2026
13.1 °CAverage March
22.2 °CHighest 11 March, 2026
33.3 °C
Climate (2021–Present)
Horsley Park (10km)
Average Low 2021–2026
12.3 °CAverage 2021–2026
17.3 °CAverage High 2021–2026
23.7 °C