St Marys Weather Forecast

Today 16 Sep
- 9
- 19
Mostly clear
Thu 17 Sep
- 7
- 21
Mostly sunny
Fri 18 Sep
- 6
- 28
Sunny
Sat 19 Sep
- 9
- 32
Sunny
Sun 20 Sep
- 10
- 33
Sunny
Mon 21 Sep
- 15
- 29
Sunny morning. Shower or two
Tue 22 Sep
- 13
- 21
Shower or two

Today 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
Mon 21 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 22 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 16 Sep Sydney

Mostly clear. Winds southerly 30 to 45 km/h decreasing to 15 to 25 km/h in the late evening.

St Marys Temperature Statistics View More

September Temperature

Penrith Lakes (10km)

Lowest 31 July, 2026
1.1 °C
Average 2026
17.5 °C
Highest 9 January, 2026
42.5 °C
Lowest 6 August, 2026
2.1 °C
Average August
13.1 °C
Highest 24 August, 2026
25.9 °C
Lowest 9 September, 2026
6.6 °C
Average September
16.8 °C
Highest 5 September, 2026
33.1 °C

Climate (2021–2026)

Penrith Lakes (10km)

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Average Low 2021–2026
12.7 °C
Average 2021–2026
17.9 °C
Average High 2021–2026
24.9 °C

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