Saint Helens Lake Weather Forecast

    • 46
    • 64

    Sunny

    • 36
    • 58

    Rain Showers

    • 32
    • 42

    Chance Snow Showers

    • 34
    • 48

    Mostly Sunny

    • 42
    • 60

    Mostly Sunny

    • 43
    • 64

    Mostly Sunny

    • 38
    • 61

    Chance Rain Showers

Today 1 May South Washington Cascades

Sunny. Free air freezing level 13000 feet. Southeast wind 10 to 15 Mph.

Tonight 1 May South Washington Cascades

Clear. Free air freezing level 13000 Feet, decreasing to free air freezing level 12000 feet after midnight. Southeast wind 5 to 10 Mph.

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Saint Helens Lake Temperature Statistics

May Temperature

Southwest Washington Regional Airport (36.7 miles)

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  • Average May

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Climate (2020–Present)

Southwest Washington Regional Airport (36.7 miles)

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  • Average Low 2020–2025

    45 °F

  • Average 2020–2025

    52.7 °F

  • Average High 2020–2025

    62.1 °F
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