O B Flat Weather Forecast
- 11
- 15
Rain. Windy
- 9
- 15
Shower or two
- 7
- 15
Possible morning shower
- 2
- 15
Partly cloudy
- 8
- 14
Partly cloudy
- 3
- 17
Partly cloudy
- 3
- 19
Mostly sunny
Today 5 Sep Mount Gambier
Cloudy. Very high chance of rain, becoming less likely in the evening. The chance of a thunderstorm in the late morning and afternoon. Damaging winds possible. Winds westerly 25 to 40 km/h decreasing to 15 to 25 km/h in the late afternoon then tending southwesterly 15 to 20 km/h in the late evening.
O B Flat Temperature Statistics View More
September Temperature
Mount Gambier Airport (14km)
Lowest 1 September, 2026
6.9 °CAverage September
11.5 °CHighest 1 September, 2026
18.3 °C
Climate (2021–2026)
Mount Gambier Airport (14km)
Average Low 2021–2026
8.9 °CAverage 2021–2026
13.7 °CAverage High 2021–2026
20 °C