Johnstone Weather Forecast

    • 14
    • 15

    Heavy rain

    • 12
    • 17

    Light rain

    • 11
    • 18

    Light rain shower

    • 9
    • 18

    Partly cloudy

    • 13
    • 18

    Cloudy

    • 14
    • 19

    Cloudy

Today 4 Jul Strathclyde

Dry start in the south and east. Otherwise a cloudy day with rain, this heavy and persistent across Argyll. Brisk southwesterly winds. Maximum Temperature 16C.

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Johnstone Temperature Statistics

July Temperature

Glasgow/bishopton (7km)

  • Lowest 1 July, 2025

    10 °C

  • Average July

    13 °C

  • Highest 1 July, 2025

    18.4 °C

Climate (2020–Present)

Glasgow/bishopton (7km)

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  • Average Low 2020–2025

    6.3 °C

  • Average 2020–2025

    9.6 °C

  • Average High 2020–2025

    13 °C
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