St Marys Weather Forecast
- 7
- 13
Partly cloudy
- 3
- 15
Partly cloudy
- 4
- 15
Partly cloudy
- 9
- 13
Showers
- 3
- 11
Partly cloudy
- 3
- 12
Partly cloudy
- 3
- 13
Sunny
Today 25 Jul East Coast
Cloudy. Medium chance of showers, becoming less likely in the late afternoon and evening. Winds westerly 15 to 20 km/h becoming light in the late afternoon then becoming west to northwesterly 15 to 20 km/h in the evening. Daytime maximum temperatures between 10 and 14.
St Marys Temperature Statistics View More
July Temperature
St Helens Aerodrome (28km)
Lowest 24 July, 2026
1.3 °CAverage July
9.6 °CHighest 19 July, 2026
17.3 °C
Climate (2021–2026)
St Helens Aerodrome (28km)
Average Low 2021–2026
9.4 °CAverage 2021–2026
13.4 °CAverage High 2021–2026
18.3 °C