Skookumchuck Reservoir Weather Forecast

    • 50
    • 72

    Partly Sunny

    • 49
    • 72

    Partly Sunny

    • 50
    • 75

    Mostly Sunny

    • 51
    • 83

    Mostly Sunny

    • 52
    • 75

    Mostly Cloudy

    • 49
    • 70

    Partly Sunny

    • 48
    • 74

    Mostly Sunny

Today 3 Jul Foothills and Valleys of Thurston and Lewis Counties

Cloudy in the morning then becoming partly sunny. Highs in the upper 60s to mid 70s. Light wind.

Tonight 3 Jul Foothills and Valleys of Thurston and Lewis Counties

Partly cloudy. Lows near 50. Light wind.

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Skookumchuck Reservoir Temperature Statistics

July Temperature

Chehalis-Centralia Airport (15.5 miles)

  • Lowest 1 July, 2026

    51.8 °F

  • Average July

    58 °F

  • Highest 1 July, 2026

    66.2 °F

Climate (2021–2026)

Chehalis-Centralia Airport (15.5 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    61.3 °F
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