St Marys Weather Forecast

Today 14 Sep
- 12
- 20
Partly cloudy
Tue 15 Sep
- 5
- 14
Shower or two
Wed 16 Sep
- 3
- 13
Cloudy
Thu 17 Sep
- 3
- 18
Sunny
Fri 18 Sep
- 4
- 20
Mostly sunny
Sat 19 Sep
- 11
- 23
Partly cloudy
Sun 20 Sep
- 11
- 21
Partly cloudy

Today 14 Sep
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 15 Sep
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 16 Sep
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 17 Sep
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 18 Sep
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 19 Sep
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 20 Sep
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 14 Sep East Coast

Partly cloudy. Slight chance of a shower, most likely later tonight. Winds northwesterly 20 to 30 km/h.

St Marys Temperature Statistics View More

September Temperature

St Helens Aerodrome (28km)

Lowest 30 July, 2026
0.9 °C
Average 2026
13.7 °C
Highest 7 January, 2026
33.6 °C
Lowest 23 August, 2026
2.5 °C
Average August
11.1 °C
Highest 30 August, 2026
23.1 °C
Lowest 8 September, 2026
3.5 °C
Average September
11.8 °C
Highest 10 September, 2026
22.2 °C

Climate (2021–2026)

St Helens Aerodrome (28km)

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

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