Harrismith Weather Forecast
- 14
- 17
Storm
- 16
- 25
Shower
- 13
- 21
Cloudy
- 11
- 20
Cloudy
- 9
- 21
Partly cloudy
- 11
- 23
Partly cloudy
- 14
- 24
Partly cloudy
Today 28 Mar Great Southern
Cloudy. High chance of rain, becoming less likely early this evening. The chance of a thunderstorm. Thunderstorms possibly severe with damaging winds and heavy rain which may lead to flash flooding. Winds northeast to southeasterly 30 to 45 km/h tending southeast to southwesterly in the early afternoon then tending west to northwesterly in the late afternoon.
Harrismith Temperature Statistics View More
March Temperature
Lake Grace (59km)
Lowest 1 March, 2026
9 °CAverage March
20.9 °CHighest 8 March, 2026
39.7 °C
Climate (2021–Present)
Lake Grace (59km)
Average Low 2021–2026
10.4 °CAverage 2021–2026
16.5 °CAverage High 2021–2026
23.9 °C