St Marys Weather Forecast

Today 17 Aug
- 3
- 14
Partly cloudy
Tue 18 Aug
- 5
- 13
Showers
Wed 19 Aug
- 9
- 16
Showers
Thu 20 Aug
- 9
- 15
Shower or two
Fri 21 Aug
- 3
- 15
Partly cloudy
Sat 22 Aug
- 6
- 16
Partly cloudy
Sun 23 Aug
- 3
- 15
Mostly sunny

Today 17 Aug
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Tue 18 Aug
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Wed 19 Aug
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Thu 20 Aug
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Fri 21 Aug
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Sat 22 Aug
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Sun 23 Aug
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm

Today 17 Aug East Coast

Partly cloudy. Light winds. Daytime maximum temperatures between 12 and 15.

St Marys Temperature Statistics View More

August Temperature

St Helens Aerodrome (28km)

Lowest 30 July, 2026
0.9 °C
Average 2026
13.9 °C
Highest 7 January, 2026
33.6 °C
Lowest 30 July, 2026
0.9 °C
Average July
9.8 °C
Highest 19 July, 2026
17.3 °C
Lowest 1 August, 2026
3 °C
Average August
10 °C
Highest 13 August, 2026
19.2 °C

Climate (2021–2026)

St Helens Aerodrome (28km)

Take a look at our website widgetsAvailable free! Find Out More

Average Low 2021–2026
9.4 °C
Average 2021–2026
13.4 °C
Average High 2021–2026
18.3 °C

Get WillyWeather+ to remove ads