Forecast issued at 4:25 pm WST on Thursday 20 October 2016.
On Friday a new high pressure ridge builds to the south of the State, and a surface trough will develop near the west coast. On Saturday a high pressure system will lie south of the Bight, and the surface trough will deepen near the west coast. The surface trough will move inland from the west coast on Sunday, ahead of a weak cold front that will brush the southwest during Monday.
Forecast for the rest of Thursday
Partly cloudy. Winds southerly 15 to 20 km/h becoming light in the evening.
Friday 21 October
Partly cloudy. Areas of morning frost in the north. Slight (20%) chance of a shower near the south coast in the morning. Near zero chance of rain elsewhere. Light winds becoming easterly 15 to 20 km/h in the middle of the day then becoming light in the evening. Overnight temperatures falling to between 2 and 6 with daytime temperatures reaching between 16 and 20.
- Fire Danger
- Geographe: Low-Moderate
- Leeuwin: Low-Moderate
- Nelson: Low-Moderate
Sun protection 8:30am to 3:50pm, UV Index predicted to reach 10 [Very High]
Saturday 22 October
Sunny. Winds easterly 15 to 20 km/h tending northeasterly early in the morning then becoming light in the morning. Overnight temperatures falling to between 5 and 8 with daytime temperatures reaching the low to mid 20s.
Sunday 23 October
Sunny. Light winds. Overnight temperatures falling to around 9 with daytime temperatures reaching 21 to 27.
Monday 24 October
Partly cloudy. Medium (50%) chance of showers, most likely in the morning and afternoon. Light winds becoming west to southwesterly 15 to 20 km/h during the day then becoming light during the evening. Overnight temperatures falling to around 9 with daytime temperatures reaching between 18 and 21.
The next routine forecast will be issued at 5:00 am WST Friday.