Harrismith Weather Forecast

    • 7
    • 16

    Cloudy

    • 4
    • 18

    Fog

    • 5
    • 20

    Cloudy

    • 7
    • 20

    Partly cloudy

    • 7
    • 23

    Sunny

    • 9
    • 24

    Partly cloudy

    • 10
    • 24

    Partly cloudy

Today 15 May Great Southern

Partly cloudy. The chance of fog in the north early this morning. Slight chance of a shower, most likely in the morning and early afternoon. Winds westerly 15 to 20 km/h tending southwesterly in the morning then becoming light in the late afternoon. Daytime maximum temperatures around 17.

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Harrismith Temperature Statistics View More

May Temperature

Lake Grace (59km)

  • Lowest 5 May, 2026

    5.5 °C

  • Average May

    13.5 °C

  • Highest 13 May, 2026

    26.1 °C

Climate (2021–Present)

Lake Grace (59km)

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  • Average Low 2021–2026

    10.4 °C

  • Average 2021–2026

    16.4 °C

  • Average High 2021–2026

    23.9 °C
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