7 day weather forecast

Effective as of 9:00 AM Friday July 31

Explanatory notes:




Today, the passage of a weak cold front brings the possibility of showers.

Still some uncertainty on conditions from Sunday into next week, with a spread between ensemble members.

There is a trend among models and ensembles towards a situation where the upper level low results in the formation of a cut off low near the southwest of the state, forecast updated accordingly.

Friday July 31:

City:

10-19 Degrees Celsius

Shower or two.

Chance of any rain:50%

Amount:0 to 1 mm

Perth Metropolitan Area:

Partly cloudy.A medium(50%) chance of showers. Light winds tending southwesterly at 15-25 km/h from afternoon becoming southeasterly at night.

Saturday August 1:

City:

7-19 Degrees Celsius

Clouds increasing.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

Mostly sunny morning becoming partly cloudy in the afternoon.Light winds tending east-southeasterly at 10-20 km/h in the morning.

Sunday August 1:

City:

7-18 Degrees Celsius

Possible shower.

Chance of any rain:30%

Amount:0 to 1 mm

Perth Metropolitan Area:

Partly cloudy.A slight(30%) chance of a shower.Light winds becoming southwesterly at 15-25 km/h in the afternoon becoming southeasterly from evening.

Monday August 2:

City:

6-15 Degrees Celsius

Showers.Possible thunderstorm.

Chance of any rain:70%

Amount:2 to 8 mm

Perth Metropolitan Area:

Partly cloudy.A high(70%) chance of showers.The chance of a thunderstorm and/or small hail.Winds southwesterly at 10-20 km/h.

Tuesday August 3:

City:

7-17 Degrees Celsius

Possible shower.

Chance of any rain:30%

Amount:0 to 1 mm

Perth Metropolitan Area:

Partly cloudy.A slight(30%) chance of a shower.Winds south-southeasterly at 15-25 km/h.

Wednesday August 4:

City:

7-18 Degrees Celsius

Clouds developing.

Chance of any rain:5%

Amount:Nil

Perth Metropolitan Area:

A sunny morning with clouds developing to become partly cloudy in the afternoon.Winds southeasterly at 15-25 km/h.

Thursday August 5:

City:

7-18 Degrees Celsius

Partly cloudy.

Chance of any rain:5%

Amount:Nil

Perth Metropolitan Area:

Partly cloudy.Winds east-southeasterly at 15-25 km/h.

Charts:

Figure 1.Surface synoptic chart at 00 UTC(8 AM local time today).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 today).Satellite image courtesy of the Japanese Meteorological Agency(JMA).

Figure 3.Mean Sea Level Pressure(MSLP) analysis with infrared greyscale satellite image at 00 UTC(8 AM 
local time today).Image courtesy of the Australian Bureau of Meteorology(BOM).

Figure 4:Surface synoptic prognosis.Image courtesy of the Australian Bureau of Meteorology(BOM)
Some data on this site is sourced from the Australian Bureau of Meteorology(BOM).