Weallup Lake Weather Forecast

    • 50
    • 67

    Slight Chance Rain

    • 50
    • 68

    Mostly Cloudy

    • 51
    • 69

    Mostly Cloudy

    • 52
    • 70

    Partly Sunny

    • 54
    • 70

    Mostly Cloudy

    • 53
    • 70

    Partly Sunny

    • 54
    • 73

    Mostly Sunny

Today 3 Sep Downtown Everett / Marysville Area

Partly sunny. A slight chance of Showers late in the morning. A chance of Showers and a slight chance of Thunderstorms early in the afternoon. A slight chance of Showers late in the afternoon. Highs in the 60s. Southeast wind 10 to 15 Mph becoming south in the afternoon.

Tonight 3 Sep Downtown Everett / Marysville Area

Mostly cloudy with a slight chance of rain in the Evening, then partly cloudy after midnight. Lows near 50. Light wind.

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Weallup Lake Temperature Statistics

September Temperature

Arlington Municipal Airport (7.5 miles)

  • Lowest 1 September, 2026

    51.1 °F

  • Average September

    61.1 °F

  • Highest 1 September, 2026

    70 °F

Climate (2021–2026)

Arlington Municipal Airport (7.5 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    59.9 °F
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