Lake Merwin Campers Hideaway Weather Forecast

    • 39
    • 63

    Mostly Sunny

    • 40
    • 64

    Mostly Sunny

    • 42
    • 57

    Chance Rain Showers

    • 39
    • 61

    Partly Sunny

    • 44
    • 70

    Mostly Sunny

    • 45
    • 71

    Partly Sunny

Today 25 Apr South Washington Cascade Foothills

Sunny. Highs in the mid 60s. Winds Light, becoming northwest 5 to 10 Mph in the afternoon.

Tonight 25 Apr South Washington Cascade Foothills

Mostly clear. Lows around 40. Northeast wind 5 to 10 Mph.

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Lake Merwin Campers Hideaway Temperature Statistics

April Temperature

Southwest Washington Regional Airport (24.9 miles)

  • Lowest 9 April, 2026

    35.1 °F

  • Average April

    52.7 °F

  • Highest 5 April, 2026

    79 °F

Climate (2021–Present)

Southwest Washington Regional Airport (24.9 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    62.5 °F
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