Mossyrock Weather Forecast

    • 47
    • 71

    Increasing Clouds

    • 48
    • 66

    Cloudy

    • 47
    • 64

    Rain Likely

    • 47
    • 65

    Chance Rain

    • 48
    • 71

    Partly Sunny

    • 49
    • 72

    Partly Sunny

Today 10 Sep Foothills and Valleys of Thurston and Lewis Counties

Mostly cloudy. Patchy fog in the morning. Highs in the lower to mid 70s. Light wind becoming west to 10 Mph in the afternoon.

Tonight 10 Sep Foothills and Valleys of Thurston and Lewis Counties

Partly cloudy in the evening then becoming mostly cloudy. Lows near 50. West wind to 10 Mph becoming south after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mossyrock Temperature Statistics

September Temperature

Chehalis-Centralia Airport (25.5 miles)

  • Lowest 5 September, 2026

    46.4 °F

  • Average September

    59.2 °F

  • Highest 6 September, 2026

    75.2 °F

Climate (2021–2026)

Chehalis-Centralia Airport (25.5 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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