Lake Merwin Campers Hideaway Weather Forecast

    • 53
    • 76

    Increasing Clouds

    • 51
    • 72

    Mostly Cloudy

    • 50
    • 74

    Mostly Sunny

    • 51
    • 75

    Mostly Sunny

    • 54
    • 81

    Mostly Sunny

    • 51
    • 72

    Partly Sunny

    • 49
    • 70

    Mostly Sunny

Today 27 Jul South Washington Cascade Foothills

Sunny. Highs around 80. Winds light.

Tonight 27 Jul South Washington Cascade Foothills

Mostly clear in the Evening, then becoming partly cloudy. Patchy fog after midnight. Lows in the mid 50s. Winds light.

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Lake Merwin Campers Hideaway Temperature Statistics

July Temperature

Southwest Washington Regional Airport (24.9 miles)

  • Lowest 9 July, 2026

    48.9 °F

  • Average July

    66 °F

  • Highest 21 July, 2026

    97 °F

Climate (2021–2026)

Southwest Washington Regional Airport (24.9 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    62.5 °F
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