Weather forecast for Perth effective as of 5:00 PM Saturday June 23

Weather forecast for Perth effective as of 5:00 PM Saturday June 23
Explanatory notes:
Scroll down below this section for forecast. 

Figure 1.Surface synoptic chart at 12 UTC(8 PM local time yesterday).Image courtesy of the Australian Bureau of Meteorology(BOM).

Figure 3.Key features identified on True Colour RGB satellite image at around 06:00 UTC(2 PM local time yesterday).Satellite image courtesy of the Japanese Meteorological Agency(JMA).

Figure 4.Mean Sea Level Pressure(MSLP) analysis with infrared greyscale satellite image at 12 UTC(8 PM 
local time yesterday).Image courtesy of the Australian Bureau of Meteorology(BOM).

Figure 5:Surface synoptic prognosis.Image courtesy of the Australian Bureau of Meteorology(BOM).

Mostly sunny conditions for the weekend as a high pressure system enters the Great Australian Bight.

A cold front likely moves across the region on Wednesday.Cold air mass lies over the region thereafter possibly the coldest of the year so far.

The rest of Saturday June 23:

City:

Mostly clear.

Chance of any rain:0%

Perth metropolitan area:

Mostly clear.Light winds.

Sunday June 24:

City:

7-21 Degrees Celsius

PM clouds.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Sunny in the morning becoming partly cloudy from afternoon.Winds east-northeasterly at 10-20 km/h becoming light from afternoon.

Monday June 25:

City:

7-20 Degrees Celsius

High clouds(mostly sunny)

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

High clouds(mostly sunny).Winds north-northeasterly at 10-25 km/h becoming light from afternoon.

Tuesday June 26:

City:

9-20 Degrees Celsius

Partly cloudy.

Chance of any rain:20%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.A slight(20%) chance of showers at night.Winds north-northeasterly at 15-25 km/h becoming tending  north-northwesterly in the afternoon.

Wednesday June 27:

City:

10-19 Degrees Celsius

Showers.Possible thunderstorm.

Chance of any rain:95%

Amount:10 to 25 mm.

Perth metropolitan area:

Mostly cloudy.A very high(95%) chance of rain and showers.The chance of thunderstorms.Winds north-northwesterly at 15-30 km/h becoming south-southwesterly at 10-20 km/h later.

Thursday June 28:

City:

7-17 Degrees Celsius

Partly cloudy.

Chance of any rain:20%

Amount:0mm.

Perth metropolitan area:

Partly cloudy.A slight(20%) chance of showers.Winds southeasterly at 10-20 km/h.

Friday June 29:

City:

4-16 Degrees Celsius

Partly cloudy.

Chance of any rain:5%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.Winds easterly at 10-20 km/h.

Saturday June 30:

City:

4-17 Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:0 mm.

Perth metropolitan area:

Sunny.Winds easterly at 10-20 km/h.

Forecast for today produced at 11:45 PM Monday May 7,forecast for the rest of the days produced at 5:00 PM Monday May 7.Weather icons courtesy of the US National Weather Service.