O B Flat Weather Forecast
- 14
- 21
Showers
- 12
- 18
Showers
- 8
- 16
Shower or two
- 6
- 17
Partly cloudy
- 5
- 18
Cloudy
- 6
- 19
Shower or two
- 9
- 15
Shower or two
Today 30 Sep Mount Gambier
Cloudy. Very high chance of showers, becoming less likely in the late afternoon and evening. The chance of a thunderstorm. Winds north to northwesterly 15 to 20 km/h tending west to northwesterly in the middle of the day then becoming light in the late afternoon.
O B Flat Temperature Statistics View More
September Temperature
Mount Gambier Airport (14km)
Lowest 22 September, 2026
-0.3 °CAverage September
11.9 °CHighest 19 September, 2026
25.8 °C
Climate (2021–2026)
Mount Gambier Airport (14km)
Average Low 2021–2026
8.9 °CAverage 2021–2026
13.7 °CAverage High 2021–2026
20.1 °C