St Marys Weather Forecast
- 11
- 25
Clear
- 13
- 27
Partly cloudy
- 11
- 25
Mostly sunny
- 12
- 28
Mostly sunny
- 14
- 24
Showers
- 10
- 17
Showers
- 5
- 15
Shower or two
Today 20 Oct East Coast
Mostly clear. Slight chance of a shower in the south, becoming less likely later this evening. Near zero chance of rain elsewhere. The chance of a thunderstorm in the south early this evening. Winds northwesterly 25 to 40 km/h decreasing to 20 to 30 km/h in the evening.
St Marys Temperature Statistics View More
October Temperature
St Helens Aerodrome (28 km)
Lowest 15 October, 2026
5.5 °CAverage October
13.5 °CHighest 1 October, 2026
22.4 °C
Climate (2021–2026)
St Helens Aerodrome (28 km)
Average Low 2021–2026
9.4 °CAverage 2021–2026
13.5 °CAverage High 2021–2026
18.4 °C