Here's what you can expect with tomorrow's Penrith 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; sw winds.

The highest expected temperature tomorrow is 18, which is five degrees lower than today's max.

Today's maximum is the highest the mercury will climb over the next seven days, according to the forecast.

The chance of rain tomorrow is 90 per cent.

Showers are less likely Monday 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 10 km/h in the morning shifting to south-southwest around 14 km/h in the afternoon.

Details for the next six days:

Sunday, May 18: Mostly cloudy. SW winds Min - 12. Max - 18.

Monday, May 19: Mostly cloudy. Clearing shower. SW winds Min - 11. Max - 18.

Tuesday, May 20: Mostly cloudy. Possible shower. SW/SE winds Min - 12. Max - 19.

Wednesday, May 21: Mostly cloudy. Possible shower. SW winds Min - 13. Max - 20.

Thursday, May 22: Mostly cloudy. Showers, heavy at times. S'ly winds Min - 11. Max - 19.

Friday, May 23: Cloudy. Showers. S'ly winds Min - 13. Max - 21.

The previous Penrith weather article can be viewed here.