7 day weather forecast

Effective as of 12:00 AM Sunday October 7

Explanatory notes:

West coast trough deepens near the west coast.The west coast trough lies offshore overnight,moves inland during the afternoons of Sunday and Monday leading to afternoon sea breezes.

Possible showers and thunderstorms ahead of another upper/middle level trough/disturbance on Tuesday and Wednesday.

Sunday October 7:

12-24 Degrees Celsius

Partly cloudy.

Chance of any rain:5%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.Winds easterly at 15-25 km/h tending south-southwesterly at 15-30 km/h from afternoon becoming southeasterly at 5-15 km/h at night.

Monday October 8:

12-25 Degrees Celsius

Partly cloudy.

Chance of any rain:5%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.Winds east-southeasterly at 10-20 km/h tending south-southwesterly at 10-25 km/h over western suburbs during the afternoon.

Tuesday October 9:

14-26 Degrees Celsius

Possible showers and thunderstorms.

Chance of any rain:50%

Amount:0 to 5 mm.

Perth metropolitan area:

Partly cloudy.A medium(50%) chance of a showers and thunderstorms.Winds east-northeasterly at 15-25 km/h tending light during the afternoon.

Wednesday October 10:

14-25 Degrees Celsius

Possible shower or thunderstorm.

Chance of any rain:30%

Amount:0 to 2 mm.

Perth metropolitan area:

Partly cloudy.A slight(30%) chance of a shower or thunderstorm.Winds northeasterly at 15-25 km/h becoming light from afternoon.

Thursday October 11:

14-24 Degrees Celsius

Partly cloudy.

Chance of any rain:20%

Amount:0 mm.

Perth metropolitan area:

Partly cloudy.A slight(20%) chance of a shower.Light winds tending southwesterly at 10-25 km/h during the day.

Friday October 12:

14-22 Degrees Celsius

Shower or two.

Chance of any rain:50%

Amount:0 to 2 mm.

Perth metropolitan area:

Partly to mostly cloudy.A medium(50%) chance of showers.Winds west-northwesterly at 20-30 km/h.

Saturday October 13:

14-20 Degrees Celsius

Showers.

Chance of any rain:80%

Amount:2 to 8 mm.

Perth metropolitan area:

Partly to mostly cloudy.A high(80%) chance of showers.The chance of a thunderstorm.Winds northwesterly at 20-30 km/h.

Charts:

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 3.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 4:Surface synoptic prognosis.Image courtesy of the Australian Bureau of Meteorology(BOM).

Forecast for today produced at 12:00 AM,forecast for the rest of the days produced at 4:20 PM Wednesday July 11.Weather icons courtesy of the US National Weather Service.