Grand Mound Weather Forecast

    • 54
    • 88

    Mostly Sunny

    • 50
    • 84

    Mostly Sunny

    • 48
    • 76

    Partly Sunny

    • 48
    • 77

    Mostly Sunny

    • 49
    • 78

    Partly Sunny

    • 51
    • 77

    Partly Sunny

Today 30 Jun Lowlands of Lewis and Southern Thurston Counties

Sunny. Highs in the mid 80s to lower 90s. North wind to 10 Mph. Gusts to 20 Mph in the afternoon.

Tonight 30 Jun Lowlands of Lewis and Southern Thurston Counties

Mostly clear. Lows in the lower to mid 50s. Northwest wind to 10 Mph with Gusts to 20 Mph in the evening becoming light.

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Grand Mound Temperature Statistics

June Temperature

Chehalis-Centralia Airport (9.3 miles)

  • Lowest 2 June, 2025

    41 °F

  • Average June

    60.1 °F

  • Highest 8 June, 2025

    91.4 °F

Climate (2020–Present)

Chehalis-Centralia Airport (9.3 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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