South West District Forecast

View the current warnings for Victoria

Forecast issued at 4:43 pm EST on Friday 18 September 2020.

Weather Situation

A deep low pressure system over South Australia will continue east tonight while filling, as a high becomes established over the Tasman Sea just east of Victoria, combining to direct a warm and humid northeasterly airstream establishes over the state. The low will continue to dissipate tomorrow, however an associated trough is expected to enter the west of the state later in the day, before crossing the rest of Victoria early on Sunday, as a low pressure complex develops south of the Bight. An associated cold front will approach western Victoria late Sunday, before crossing the state during Monday. The low pressure complex will then approach Tasmania during Tuesday, as another in a series of cold fronts crosses Victoria.

Forecast for the rest of Friday

Humid. Partly cloudy. The chance of a thunderstorm with little or no rainfall in the west tonight. Winds easterly 15 to 20 km/h turning northeasterly 15 to 25 km/h in the evening.

Saturday 19 September

Humid. Partly cloudy. Very high (90%) chance of rain, mostly in the afternoon and evening. The chance of a thunderstorm with little or no rainfall in the morning. Heavy falls possible in the east during the evening. Winds northeasterly 25 to 40 km/h. Overnight temperatures falling to around 11 with daytime temperatures reaching the low to mid 20s.

Sun protection 9:50am to 2:50pm, UV Index predicted to reach 5 [Moderate]

7 day Town Forecasts

Precis Icon Location Min Max
Humid. Rain increasing. Warrnambool 11 24
Humid. Late rain at times. Colac 10 24
Humid. Possible storm. Hamilton 13 24

Sunday 20 September

Partly cloudy. Very high (95%) chance of showers, mostly in the evening. The chance of thunderstorms. Gusty winds, and possible early heavy falls. Winds north to northeasterly 25 to 40 km/h tending north to northwesterly 25 to 35 km/h during the morning then becoming northerly 30 to 40 km/h in the evening. Overnight temperatures falling to around 13 with daytime temperatures reaching the low 20s.

Monday 21 September

Partly cloudy. High (80%) chance of showers, most likely in the morning. The chance of a thunderstorm in the early morning and late afternoon. Winds northwesterly 25 to 40 km/h. Overnight temperatures falling to around 9 with daytime temperatures reaching around 17.

Tuesday 22 September

Partly cloudy. High (80%) chance of showers. The chance of a thunderstorm near the coast in the morning. Winds northwesterly 30 to 45 km/h. Overnight temperatures falling to around 7 with daytime temperatures reaching around 14.

The next routine forecast will be issued at 5:40 am EST Saturday.

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