Here's what you can expect with tomorrow's Blacktown weather

As autumn moves towards winter what can locals expect tomorrow? We have the latest word from the Weather Bureau.

Weather forecasts are updated on the hour, sourced from WeatherZone.

Tomorrow's forecast is mostly cloudy; possible shower; sw/se winds.

The highest expected temperature tomorrow is 21, .

Today's maximum will be topped on Saturday, but cooler conditions are expected on five of the next six days.

The chance of rain tomorrow is 40 per cent.

Showers are more likely on Saturday when the Bureau of Meteorology forecasts a high (70 per cent) chance of rain.

The UV index is predicted to be 3. There is a moderate risk of harm from sun exposure. Experts suggest covering up, using sunscreen outside and avoiding the sun around noon.

Winds will be southwest around 6 km/h in the morning shifting to south-southwest around 6 km/h in the afternoon.

Details for the next six days:

Friday, May 16: Mostly cloudy. Possible shower. SW/SE winds Min - 15. Max - 21.

Saturday, May 17: Morning fog patches. Mostly sunny afternoon. W'ly winds tending S'ly Min - 12. Max - 22.

Sunday, May 18: Mostly cloudy. Late shower. SW winds Min - 11. Max - 17.

Monday, May 19: Mostly cloudy. Rain periods. S'ly winds Min - 11. Max - 17.

Tuesday, May 20: Mostly cloudy. Possible shower. SW winds Min - 13. Max - 19.

Wednesday, May 21: Cloudy. Showers. S'ly winds Min - 13. Max - 20.

The previous Blacktown weather article can be viewed here.