Forecast issued at 4:25 pm WST on Thursday 28 July 2016.
A high pressure system gradually contracts eastwards as a cold front approaches from the west Friday. A second stronger cold front moves through southern parts late Saturday and during Sunday with a new high pressure system developing over the south of the State late Sunday and Monday.
Forecast for the rest of Thursday
Partly cloudy. Light winds.
Friday 29 July
Cloudy. High (80%) chance of rain, most likely in the afternoon and early evening. Gusty winds in the afternoon and evening. Light winds becoming north to northwesterly 25 to 35 km/h in the morning then tending west to northwesterly in the late afternoon. Overnight temperatures falling to between 7 and 10 with daytime temperatures reaching the low 20s.
- Fire Danger
- Lower West Coast: Low-Moderate
- Lower West Inland: Low-Moderate
Sun protection 10:40am to 2:20pm, UV Index predicted to reach 4 [Moderate]
Saturday 30 July
Partly cloudy. Medium (60%) chance of showers. Winds westerly 20 to 30 km/h becoming light early in the morning then becoming west to northwesterly 25 to 35 km/h in the morning. Overnight temperatures falling to around 10 with daytime temperatures reaching between 16 and 19.
Sunday 31 July
Partly cloudy. Very high (90%) chance of showers, most likely in the morning. The chance of a thunderstorm and hail in the morning and afternoon. Winds westerly 25 to 40 km/h increasing to 45 km/h before shifting south to southeasterly 15 to 20 km/h during the evening. Overnight temperatures falling to between 8 and 11 with daytime temperatures reaching between 14 and 17.
Monday 1 August
Sunny. Light winds. Overnight temperatures falling to between 1 and 5 with daytime temperatures reaching between 14 and 17.
The next routine forecast will be issued at 5:00 am WST Friday.