Weeroona Island Weather Forecast
- 14
- 26
Partly cloudy
- 11
- 28
Mostly sunny
- 13
- 34
Partly cloudy
- 20
- 31
Possible shower
- 14
- 25
Showers
- 9
- 18
Showers
- 8
- 18
Shower or two
Today 20 Oct Mid North
Partly cloudy. Medium chance of showers in the east, slight chance elsewhere. The chance of a thunderstorm. Thunderstorms possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding. Winds northwest to southwesterly 15 to 20 km/h tending south to southwesterly in the late afternoon then becoming light in the late evening. Daytime maximum temperatures in the mid to high 20s.
Spencer Gulf Coastal Waters
- Wind
- Southwesterly 15 to 20 knots turning southerly during the morning and early afternoon.
- Seas
- 1 to 1.5 metres, decreasing to 1 metre during the morning, then increasing to 1 to 1.5 metres by early evening.
- 1st Swell
- South to southwesterly below 1 metre, increasing to around 1 metre south of Cowell to Wallaroo.
- Weather
- Partly cloudy. The chance of a thunderstorm, with possible squalls north of Cowell to Wallaroo during this afternoon and evening.
- Weather Situation
- A trough of low pressure over southeastern South Australia lingers in the east, before weakening from Thursday. A slow moving high pressure system in the Tasman Sea re-establishes a ridge across southern parts from Wednesday. Another series of troughs move into western parts on Thursday and broadly across SA on Friday.
Weeroona Island Temperature Statistics View More
October Temperature
Whyalla Airport (48 km)
Lowest 15 October, 2026
6.2 °CAverage October
17.9 °CHighest 8 October, 2026
32.4 °C
Climate (2021–2026)
Whyalla Airport (48 km)
Average Low 2021–2026
12.1 °CAverage 2021–2026
17.6 °CAverage High 2021–2026
23.8 °C