St Marys Weather Forecast
- 5
- 15
Partly cloudy
- 3
- 16
Mostly sunny
- 2
- 15
Showers increasing
- 4
- 13
Possible shower
- 3
- 14
Shower or two
- 3
- 16
Shower or two
- 6
- 17
Shower or two
Today 31 Aug East Coast
Partly cloudy. Slight chance of a shower. Winds westerly 25 to 35 km/h. Daytime maximum temperatures between 11 and 16.
St Marys Temperature Statistics View More
August Temperature
St Helens Aerodrome (28km)
Lowest 7 August, 2025
1.5 °CAverage August
9.9 °CHighest 14 August, 2025
17.3 °C
Climate (2020–Present)
St Helens Aerodrome (28km)
Average Low 2020–2025
9.4 °CAverage 2020–2025
13.3 °CAverage High 2020–2025
18.2 °C