Great Southern District

View the current warnings for Western Australia

Forecast updated at 4:46 pm WST on Thursday 22 June 2017.

Weather Situation

A slow moving low pressure system lies over northwestern parts of the Great Southern. This system will move northwards tonight and Friday towards the west coast and gradually weaken during the evening. During Saturday a new ridge of high pressure will build off the south coast. A trough will extend from the Pilbara to the South Interior on Monday.

Forecast for the rest of Thursday

Cloudy. High (80%) chance of showers. The chance of a thunderstorm. Heavy rain which may lead to flash flooding possible in the northwest until later this evening. Winds east to southeasterly 15 to 25 km/h.

Friday 23 June

Cloudy. High (80%) chance of showers in the north, medium (60%) chance elsewhere. Winds southeasterly 25 to 35 km/h. Overnight temperatures falling to between 7 and 10 with daytime temperatures reaching around 16.

Fire Danger
Upper Great Southern: High
Roe: Low-Moderate
Beaufort: High
Lakes: Low-Moderate

Sun protection not recommended, UV Index predicted to reach 2 [Low]

7 day Town Forecasts

Precis Icon Location Min Max
Showers easing. Narrogin 8 15
Shower or two clearing. Katanning 10 15
Showers easing. Lake Grace 10 16

Saturday 24 June

Partly cloudy. Slight (20%) chance of a shower in the east, near zero chance elsewhere. Winds southeasterly 15 to 25 km/h becoming light in the evening. Overnight temperatures falling to around 5 with daytime temperatures reaching around 16.

Sunday 25 June

Cloudy. Slight (30%) chance of a shower, most likely in the afternoon. Light winds. Overnight temperatures falling to between 2 and 5 with daytime temperatures reaching around 15.

Monday 26 June

Partly cloudy. Slight (30%) chance of a shower. Areas of morning frost in the northwest. Light winds. Overnight temperatures falling to between 1 and 4 with daytime temperatures reaching around 16.

The next routine forecast will be issued at 5:00 am WST Friday.

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