St Johns Weather Forecast
- 22
- 33
Clear
- 13
- 33
Partly cloudy
- 15
- 29
Sunny
- 10
- 27
Mostly sunny
- 11
- 32
Sunny
- 17
- 34
Sunny
- 15
- 33
Mostly sunny
Today 19 Jan Mount Lofty Ranges
Mostly clear. Winds southwesterly 25 to 35 km/h.
St Johns Temperature Statistics View More
January Temperature
Nuriootpa (PIRSA Research Centre) (12km)
Lowest 1 January, 2026
9.1 °CAverage January
22.6 °CHighest 8 January, 2026
44.7 °C
Climate (2021–Present)
Nuriootpa (PIRSA Research Centre) (12km)
Average Low 2021–2026
9.2 °CAverage 2021–2026
15 °CAverage High 2021–2026
21.8 °C