Harrismith Weather Forecast

    • 1
    • 14

    Shower

    • 3
    • 15

    Fog

    • 2
    • 16

    Cloudy

    • 3
    • 17

    Partly cloudy

    • 3
    • 18

    Partly cloudy

    • 3
    • 20

    Partly cloudy

    • 5
    • 21

    Partly cloudy

Today 27 Aug Great Southern

Partly cloudy. Medium chance of showers in the west, slight chance elsewhere. Winds westerly 15 to 20 km/h becoming light in the late afternoon. Daytime maximum temperatures around 15.

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Harrismith Temperature Statistics View More

August Temperature

Lake Grace (59km)

  • Lowest 15 August, 2025

    -0.1 °C

  • Average August

    11 °C

  • Highest 13 August, 2025

    25.3 °C

Climate (2020–Present)

Lake Grace (59km)

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  • Average Low 2020–2025

    10.5 °C

  • Average 2020–2025

    16.5 °C

  • Average High 2020–2025

    23.8 °C
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