7 day weather forecast

Effective as of 4:00 PM Thursday November 18 2021

View the latest severe weather warnings from BOM at http://www.bom.gov.au/wa/warnings/ .

Explanatory notes:

Plenty of cloud cover today meant that maximum temperature were below forecasts, some isolated showers had developed with atmospheric instability with steep vertical lapse rate with a cold pool aloft ahead of an upper level trough.

Plenty of clouds remain on Friday with the slight chance of a shower again with the cold pool remaining aloft.

Mostly sunny on Saturday with the cold pool aloft having contracted to the east.

The slight chance of showers and thunderstorms again on Sunday and Monday as another upper level trough approaches from the west.

Fine conditions thereafter as subtropical high pressure ridge builds to the south.

Thursday November 18:

City:

14-24  Degrees Celsius

Possible shower.

Chance of any rain:30%

Amount:0 to 2 mm

Perth Metropolitan Area:

Partly to mostly cloudy.A slight (30%) chance of a shower, most likely in the afternoon.The slight chance of a thunderstorm in the afternoon.Winds east-southeasterly at 15-25 km/h tending south-southeasterly at 20-30 km/h in the afternoon.

Friday November 19:

City:

13-23  Degrees Celsius

Partly to mostly cloudy

Chance of any rain:20%

Amount:Nil

Perth Metropolitan Area:

Partly to mostly cloudy.A slight (20%) chance of a shower.Winds east-southeasterly at 15-25 km/h tending southerly over western suburbs in the afternoon.

Saturday November 20:

City:

12-28  Degrees Celsius

Mostly sunny.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

Mostly sunny.Winds east-northeasterly at 15-25 km/h tending south-southwesterly at 20-30 km/h in the afternoon, southerly at 10-20 km/h at night.

Sunday November 21:

City:

13-23  Degrees Celsius

Partly cloudy.

Chance of any rain:20%

Amount:Nil

Perth Metropolitan Area:

Partly cloudy.A slight(20%) chance of a shower or thunderstorm.Winds south-southeasterly at 10-20 km/h becoming south-southwesterly at 20-30 km/h from late morning easing to 15-25 km/h at night.

Monday November 22:

City:

13-24  Degrees Celsius

Partly cloudy.

Chance of any rain:20%

Amount:Nil

Perth Metropolitan Area:

Partly cloudy.A slight(20%) chance of a shower.Winds south-southeasterly at 10-25 km/h tending south-southwesterly at 20-35 km/h in the afternoon.

Tuesday November 23:

City:

12-27  Degrees Celsius

Sunny.

Chance of any rain:5%

Amount:Nil

Perth Metropolitan Area:

Sunny.Winds east-southeasterly at 10-20 km/h tending south-southwesterly at 20-30 km/h in the afternoon.

Wednesday November 24:

City:

15-30  Degrees Celsius

Sunny.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

Sunny.Winds east-southeasterly at 10-20 km/h tending south-southwesterly at 20-30 km/h in the afternoon.

Thursday November 25:

City:

16-32  Degrees Celsius

Mostly sunny.

Chance of any rain:0%

Amount:Nil

Perth Metropolitan Area:

Mostly sunny.Winds east-southeasterly at 20-30 km/h.

Figure 1.Surface synoptic chart.Image courtesy of the Australian Bureau of Meteorology(BOM).

Figure 3.Mean Sea Level Pressure(MSLP) analysis with infrared greyscale satellite image. Image courtesy of the Australian Bureau of Meteorology(BOM)

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

No liabilities held from information consumed on this site. Weather icons are from the US National Weather Service.Some information on this site is from the Australian Bureau of Meteorology (BOM).