Great Southern District

View the current warnings for Western Australia

Forecast issued at 4:25 pm WST on Wednesday 19 February 2025.

Weather Situation

A trough lies down the west coast while a ridge is in place over southern parts of the State. The trough will move eastward during Thursday and Friday with the northern end of a cold front predicted to brush the southwest corner on Friday. A new ridge will strengthen over southern and western WA on Saturday before a new trough deepens down the west coast on Sunday.

Forecast for the rest of Wednesday

Mostly clear. Slight chance of a shower in the northwest, near zero chance elsewhere. The chance of a thunderstorm in the northwest. Winds easterly 20 to 30 km/h.

Thursday 20 February

Partly cloudy. Medium chance of showers in the east, slight chance elsewhere. The chance of a thunderstorm in the morning and afternoon, possibly severe. Winds east to northeasterly 15 to 20 km/h tending northwest to northeasterly 20 to 30 km/h early in the morning then tending northwest to southwesterly 25 to 35 km/h in the early afternoon. Overnight temperatures falling to between 17 and 21 with daytime temperatures reaching the low to mid 30s.

Fire Danger
Arthur: High
Roe: High
Lakes: High
Stirling North: High
Stirling West: High

Sun protection 8:30am to 4:10pm, UV Index predicted to reach 11 [Extreme]

7 day Town Forecasts

Precis Icon Location Min Max
Partly cloudy. Narrogin 21 35
Partly cloudy. Katanning 18 34
Possible shower or storm. Lake Grace 21 36

Friday 21 February

Partly cloudy. Slight chance of a shower in the southwest, near zero chance elsewhere. The chance of a thunderstorm in the northeast. Winds southwesterly 15 to 20 km/h tending west to southwesterly 25 to 35 km/h in the morning then increasing to 40 km/h before tending south to southwesterly 20 to 30 km/h in the evening. Overnight temperatures falling to around 17 with daytime temperatures reaching 25 to 31.

Saturday 22 February

Partly cloudy. Winds south to southwesterly 15 to 25 km/h tending south to southeasterly during the day. Overnight temperatures falling to around 10 with daytime temperatures reaching the low to mid 20s.

Sunday 23 February

Sunny. Winds southeasterly 15 to 20 km/h tending northeast to southeasterly 15 to 25 km/h during the morning. Overnight temperatures falling to around 9 with daytime temperatures reaching around 30.

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

Product IDW13160