St Marys Weather Forecast
- 2
- 12
Partly cloudy
- 2
- 15
Mostly sunny
- 4
- 15
Mostly sunny
- 3
- 15
Mostly sunny
- 3
- 16
Partly cloudy
- 4
- 15
Partly cloudy
- 5
- 13
Possible shower
Today 14 Jul East Coast
Partly cloudy. Areas of morning frost about higher ground. Slight chance of a shower, most likely in the late morning and afternoon. Snow possible above 900 metres. Winds northwesterly 15 to 25 km/h turning westerly in the middle of the day. Daytime maximum temperatures between 8 and 13.
St Marys Temperature Statistics View More
July Temperature
St Helens Aerodrome (28km)
Lowest 11 July, 2026
3.4 °CAverage July
9.7 °CHighest 1 July, 2026
16.7 °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