Fort Borst Lake Weather Forecast

    • 52
    • 79

    Increasing Clouds

    • 52
    • 82

    Partly Sunny

    • 52
    • 85

    Mostly Sunny

    • 53
    • 80

    Partly Sunny

    • 50
    • 77

    Partly Sunny

    • 49
    • 78

    Partly Sunny

    • 49
    • 79

    Mostly Sunny

Today 21 Jul Lowlands of Lewis and Southern Thurston Counties

Partly sunny in the morning then becoming sunny. Patchy fog in the morning. Highs in the mid to upper 70s. Light wind becoming west to 10 Mph in the afternoon.

Tonight 21 Jul Lowlands of Lewis and Southern Thurston Counties

Partly cloudy. Patchy fog late in the night. Lows in the lower to mid 50s. West wind to 10 Mph in the evening becoming light.

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Fort Borst Lake Temperature Statistics

July Temperature

Chehalis-Centralia Airport (3.1 miles)

  • Lowest 3 July, 2025

    48.2 °F

  • Average July

    66.1 °F

  • Highest 16 July, 2025

    93.2 °F

Climate (2020–Present)

Chehalis-Centralia Airport (3.1 miles)

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  • Average Low 2020–2025

    43.6 °F

  • Average 2020–2025

    52 °F

  • Average High 2020–2025

    61.4 °F
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