Williams Forecast (beta)

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View the current warnings for Western Australia

Forecast issued at 7:48 pm AWST on Wednesday 16 September 2026.

Forecast for the rest of Wednesday

Forecast Icon
Partly Cloudy
Max
27 °C
Precis
Possible rainfall:
0 mm
Chance of any rain:
20%

Great Southern area

Clear. Light winds becoming northeasterly 15 to 20 km/h in the late evening.

Thursday 17 September

Forecast Icon
Partly Cloudy
Min
17 °C
Max
30 °C
Precis
Possible rainfall:
0 mm
Chance of any rain:
20%

Great Southern area

Sunny morning. Slight chance of a shower in the afternoon. Winds north to northeasterly 20 to 30 km/h tending north to northwesterly 25 to 35 km/h in the middle of the day then becoming light in the evening. Overnight temperatures falling to between 14 and 17 with daytime temperatures reaching around 30.

Fire Danger
Roe: No Rating
Arthur: Moderate
Lakes: Moderate
Stirling North: No Rating
Stirling West: No Rating

Sun protection recommended from 8:50 am to 3:10 pm, UV Index predicted to reach 8 [Very High]

Friday 18 September

Forecast Icon
Showers
Min
12 °C
Max
26 °C
Precis
Possible rainfall:
0 to 3 mm
Chance of any rain:
70%

Great Southern area

Partly cloudy. High chance of showers, most likely in the late afternoon and evening. The chance of a thunderstorm in the east in the afternoon. Light winds becoming north to northwesterly 15 to 25 km/h in the morning then tending west to northwesterly 15 to 20 km/h in the evening. Overnight temperatures falling to between 12 and 16 with daytime temperatures reaching 24 to 31.

Sun protection recommended from 8:50 am to 3:10 pm, UV Index predicted to reach 8 [Very High]

Saturday 19 September

Forecast Icon
Showers
Min
11 °C
Max
17 °C
Precis
Possible rainfall:
1 to 5 mm
Chance of any rain:
90%

Great Southern area

Partly cloudy. Very high chance of showers, most likely in the morning. Winds northwesterly 25 to 40 km/h turning westerly 30 to 45 km/h during the morning then decreasing to 20 to 30 km/h during the evening. Overnight temperatures falling to around 11 with daytime temperatures reaching between 17 and 21.

Sun protection recommended from 9:00 am to 3:00 pm, UV Index predicted to reach 7 [High]

Sunday 20 September

Forecast Icon
Cloudy
Min
9 °C
Max
19 °C
Precis
Possible rainfall:
0 to 1 mm
Chance of any rain:
30%

Great Southern area

Cloudy. Slight chance of a shower. Light winds. Overnight temperatures falling to between 7 and 10 with daytime temperatures reaching between 18 and 21.

Sun protection recommended from 9:00 am to 3:00 pm, UV Index predicted to reach 7 [High]

Monday 21 September

Forecast Icon
Partly Cloudy
Min
8 °C
Max
23 °C
Precis
Possible rainfall:
0 mm
Chance of any rain:
5%

Tuesday 22 September

Forecast Icon
Showers
Min
9 °C
Max
21 °C
Precis
Possible rainfall:
0 to 1 mm
Chance of any rain:
40%

The next routine forecast will be issued at 1:30 am AWST Thursday.

Product IDW13160