St Marys Weather Forecast

Today 14 Oct
- 12
- 19
Mostly clear
Thu 15 Oct
- 10
- 19
Shower or two developing
Fri 16 Oct
- 12
- 21
Showers
Sat 17 Oct
- 12
- 22
Shower or two
Sun 18 Oct
- 12
- 23
Shower or two
Mon 19 Oct
- 11
- 25
Shower or two
Tue 20 Oct
- 12
- 27
Shower or two

Today 14 Oct
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Thu 15 Oct
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Fri 16 Oct
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Sat 17 Oct
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Sun 18 Oct
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Mon 19 Oct
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Tue 20 Oct
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm

Today 14 Oct Sydney

Mostly clear. Winds south to southeasterly 20 to 30 km/h tending south to southwesterly 15 to 20 km/h in the evening.

St Marys Temperature Statistics View More

October Temperature

Penrith Lakes (10 km)

Lowest 31 July, 2026
1.1 °C
Average 2026
17.6 °C
Highest 9 January, 2026
42.5 °C
Lowest 18 September, 2026
5.4 °C
Average September
17.1 °C
Highest 26 September, 2026
35.1 °C
Lowest 9 October, 2026
9 °C
Average October
19.5 °C
Highest 12 October, 2026
35.4 °C

Climate (2021–2026)

Penrith Lakes (10 km)

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Average Low 2021–2026
12.7 °C
Average 2021–2026
17.9 °C
Average High 2021–2026
25 °C

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