Saint Helens Lake Weather Forecast

    • 29
    • 44

    Mostly Sunny

    • 31
    • 38

    Snow

    • 25
    • 37

    Snow

    • 21
    • 28

    Snow

    • 19
    • 28

    Snow

    • 17
    • 27

    Snow

    • 14
    • 27

    Snow Likely

Today 29 Jan South Washington Cascades

Sunny. Free air freezing level 9000 Feet, increasing to free air freezing level 10000 feet this afternoon. Winds light.

Tonight 29 Jan South Washington Cascades

Clear this Evening, then becoming partly cloudy. Areas of frost this evening. Widespread frost after midnight. Free air freezing level 9000 Feet, decreasing to free air freezing level 7500 feet after midnight. Winds light.

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Saint Helens Lake Temperature Statistics

January Temperature

Southwest Washington Regional Airport (36.7 miles)

  • Lowest 26 January, 2025

    19.9 °F

  • Average January

    38.4 °F

  • Highest 8 January, 2025

    54 °F

Climate (2020–Present)

Southwest Washington Regional Airport (36.7 miles)

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  • Average Low 2020–2025

    44.9 °F

  • Average 2020–2025

    52.6 °F

  • Average High 2020–2025

    62.1 °F
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