St Helens Weather Forecast
- 8
- 13
Shower or two
- 4
- 14
Mostly sunny
- 2
- 14
Sunny
- 6
- 13
Shower or two
- 2
- 12
Sunny
- 3
- 14
Mostly sunny
- 3
- 14
Partly cloudy
Today 20 Jun St Helens
Cloudy. Medium chance of showers, becoming less likely this morning. Winds southerly 20 to 30 km/h becoming light in the evening.
East of Flinders Island Coastal Waters
North Flinders Island to St Helens Point- Wind
- South to southeasterly 15 to 25 knots, reaching up to 30 knots during the morning. Winds decreasing to 10 to 15 knots in the late evening.
- Seas
- 1.5 to 2.5 metres.
- 1st Swell
- Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore.
- Weather
- Cloudy. 80% chance of showers. The chance of a thunderstorm in the early morning.
- Weather Situation
- A cooler south to southwesterly airstream is expected on Saturday with a ridge of high pressure forecast to develop over the state through the weekend. A warmer northwesterly airstream is then expected to develop during Monday as the ridge gradually moves to the east and a cold front approaches from the west. The cold front is expected to move over Tasmania on Tuesday resulting in a return to cooler southerly flow.
St Helens Temperature Statistics View More
June Temperature
St Helens Aerodrome (3km)
Lowest 15 June, 2026
2.9 °CAverage June
11.6 °CHighest 10 June, 2026
18.4 °C
Climate (2021–2026)
St Helens Aerodrome (3km)
Average Low 2021–2026
9.4 °CAverage 2021–2026
13.4 °CAverage High 2021–2026
18.3 °C