Gaston Weather Forecast

    • 37
    • 61

    Becoming Sunny

    • 42
    • 65

    Mostly Sunny

    • 47
    • 74

    Mostly Sunny

    • 48
    • 81

    Mostly Sunny

    • 46
    • 78

    Partly Sunny

    • 44
    • 70

    Mostly Sunny

Today 3 May Tualatin Valley

Mostly cloudy in the Morning, then becoming partly sunny. Highs in the lower 60s. Northwest wind 5 to 10 Mph.

Tonight 3 May Tualatin Valley

Mostly clear. Lows in the upper 30s. Northwest wind 5 to 10 Mph.

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Gaston Temperature Statistics

May Temperature

Portland-Hillsboro Airport (11.8 miles)

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  • Average May

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Climate (2020–Present)

Portland-Hillsboro Airport (11.8 miles)

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  • Average Low 2020–2025

    43.2 °F

  • Average 2020–2025

    53.4 °F

  • Average High 2020–2025

    64.2 °F
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