Glen Allyn Weather Forecast

    • 12
    • 21

    Partly cloudy

    • 13
    • 22

    Partly cloudy

    • 11
    • 22

    Mostly sunny

    • 13
    • 23

    Possible shower

    • 15
    • 24

    Partly cloudy

    • 14
    • 25

    Mostly sunny

    • 14
    • 24

    Mostly sunny

Today 21 Aug North Tropical Coast and Tablelands

Partly cloudy. Medium chance of showers near the coast, most likely this evening. Near zero chance of rain elsewhere. Winds east to southeasterly 15 to 25 km/h. Daytime maximum temperatures 21 to 27.

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Glen Allyn Temperature Statistics View More

August Temperature

Walkamin Research Station (36km)

  • Lowest 15 August, 2026

    11.1 °C

  • Average August

    18.8 °C

  • Highest 10 August, 2026

    30.8 °C

Climate (2021–2026)

Walkamin Research Station (36km)

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  • Average Low 2021–2026

    17.7 °C

  • Average 2021–2026

    22.9 °C

  • Average High 2021–2026

    27.9 °C
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