St Marys Weather Forecast

Today 7 Jan
- 19
- 37
Clear
Thu 8 Jan
- 20
- 40
Sunny
Fri 9 Jan
- 20
- 42
Sunny
Sat 10 Jan
- 24
- 43
Sunny
Sun 11 Jan
- 20
- 25
Shower or two
Mon 12 Jan
- 17
- 26
Possible shower
Tue 13 Jan
- 18
- 33
Possible shower

Today 7 Jan
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 8 Jan
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 9 Jan
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 10 Jan
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 11 Jan
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 12 Jan
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 13 Jan
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 7 Jan Sydney

Clear. Winds northeasterly 15 to 25 km/h becoming light in the late evening.

St Marys Temperature Statistics View More

January Temperature

Penrith Lakes (10km)

Lowest 5 January, 2026
16.3 °C
Average 2026
21.4 °C
Highest 4 January, 2026
34.4 °C
Lowest 1 December, 2025
11.3 °C
Average December
22.8 °C
Highest 19 December, 2025
41.9 °C
Lowest 5 January, 2026
16.3 °C
Average January
21.4 °C
Highest 4 January, 2026
34.4 °C

Climate (2021–Present)

Penrith Lakes (10km)

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Average Low 2021–2026
12.5 °C
Average 2021–2026
17.7 °C
Average High 2021–2026
24.8 °C

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